http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/
Kingsley Idehen's Blog Data Space
I have seen the future and it's full of Linked Data! :-)
kidehen@openlinksw.com
kidehen@openlinksw.com
2026-05-21T22:55:00Z
Virtuoso Universal Server 08.03.3334
http://www.openlinksw.com:443/weblog/public/images/vbloglogo.gif
BBC Linked Data Meshup In 3 Steps
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2009-06-12#1560
2009-06-12T18:09:08Z
2009-06-12T16:38:34.000046-04:00
<h3>Situation Analysis:</h3> <p>Dr. Dre is one of the artists in the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1117a230">Linked Data</a> <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id10ff0fc0">Space</a> we host for the <a href="http://dbpedia.org/resource/BBC" id="link-id13cdba70">BBC</a>. He is also referenced in music oriented <a href="http://dbpedia.org/resource/Data">data</a> spaces such as <a href="http://dbpedia.org/resource/DBpedia" id="link-id119688a0">DBpedia</a>, <a href="http://musicbrainz.org/" id="link-id146f7d00">MusicBrainz</a> and <a href="http://last.FM" id="link-id15f50698">Last.FM</a> (to name a few). </p> <h3>Challenge:</h3> <p>How do I obtain a holistic view of the <a href="http://dbpedia.org/resource/Entity" id="link-id147a1490">entity</a> "Dr. Dre" across the BBC, MusicBrainz, and Last.FM data spaces? We know the BBC published Linked Data, but what about Last.FM and MusicBrainz? Both of these data spaces only expose XML or JSON data via REST APIs?</p> <h3>Solution:</h3> Simple 3 step Linked Data Meshup courtesy of <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtSponger" id="link-id147faf78">Virtuoso's in-built RDFizer Middleware</a> "the Sponger" (think <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id115ecea0">ODBC</a> Driver Manager for the Linked Data <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id11806418">Web</a>) and its numerous Cartridges (think ODBC Drivers for the Linked Data Web). <h3>Steps:</h3> <ol> <li> Go to Last.FM and search using pattern: Dr. Dre (you will end up with this <a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id11778f10">URL</a>: http://www.last.fm/music/Dr.+Dre)</li> <li> Go to the Virtuoso powered <a href="http://bbc.openlinksw.com" id="link-id14f40338">BBC Linked Data Space home page</a> and enter: http://bbc.openlinksw.com/about/html/http://www.last.fm/music/Dr.+Dre</li> <li> Go to the BBC Linked Data Space home page and type full text pattern (using default tab): Dr. Dre, then view <a href="http://bbc.openlinksw.com/fct/rdfdesc/usage.vsp?g=http%3A%2F%2Fwww.bbc.co.uk%2Fmusic%2Fartists%2F5f6ab597-f57a-40da-be9e-adad48708203%23artist&tp=4&sid=519&urilookup=&orig_refr=http://bbc.openlinksw.com/describe/?url=http://www.bbc.co.uk/music/artists/5f6ab597-f57a-40da-be9e-adad48708203" id="link-id119ac658">Dr. Dre's metadata via the Statistics Link</a>. </li> </ol> <h3>What Happened?</h3> <p>The following took place:</p> <ol> <li> Virtuoso <a href="http://virtuoso.openlinksw.com/Whitepapers/html/VirtSpongerWhitePaper.html" id="link-id11a46fd8">Sponger</a> sent an HTTP GET to Last.FM</li> <li> Distilled the "Artist" entity "Dr. Dre" from the page, and made a <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id1297cc68">Linked Data graph</a> </li> <li> Inverse Functional Property and sameAs reasoning handled the Meshup (augmented graph from a conjunctive query processing pipeline)</li> <li>Links for "Dr. Dre" across <a href="http://bbc.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FDr._Dre" id="link-id119e63e8">BBC (sameAs), Last.FM (seeAlso), via DBpedia URI</a>.</li> </ol> <p>The <a href="http://bbc.openlinksw.com/about/rdf/http/www.last.fm/music/Dr.+Dre#this" id="link-id111f6130">new enhanced URI for Dr. Dre</a> now provides a rich holistic view of the aforementioned "Artist" entity. This URI is usable anywhere on the Web for Linked Data Conduction :-)</p> <h3>Related (as in NearBy)</h3> <ul> <li> <a href="http://blogs.talis.com/n2/archives/617" id="link-idf3e0898">Augmenting Last.fm Data with BBC data on the Talis Platform</a> </li> </ul>
Library of Congress & Reasonable Linked Data
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2009-05-05#1556
2009-05-05T17:53:24Z
2009-05-06T14:26:15.000034-04:00
<p> While exploring the <a href="http://id.loc.gov/authorities/" id="link-id1488cca8">Subject Headings Linked Data Space</a> (LCSH) recently unveiled by the <a href="http://id.loc.gov/" id="link-id1672ad10">Library of Congress</a>, I noticed that the <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id158fef78">URI</a> for the subject heading: <a href="http://id.loc.gov/authorities/sh95000541#concept" id="link-id14c8d3e8">World Wide Web</a>, exposes an "owl:sameAs" link to resource URI: "info:lc/authorities/sh95000541" -- in fact, a URI.URN that isn't HTTP protocol scheme based.</p> <p> The observations above triggered a <a href="http://search.twitter.com/search?q=&ands=&phrase=&ors=&nots=&tag=linkeddata&lang=all&from=kidehen&to=edsu&ref=&near=&within=15&units=mi&since=2009-05-01&until=2009-05-05&rpp=10" id="link-id14e21ba0">discussion thread on Twitter</a> that involved: <a href="http://twitter.com/edsu" id="link-ide411808">@edsu</a>, <a href="http://twitter.com/iand" id="link-id11915ed0">@iand</a>, and <a href="http://twitter.com/kidehen" id="link-id1519c028">moi</a>. Naturally, it morphed into a live demonstration of: human vs machine, interpretation of claims expressed in the RDF graph.</p> <h3>What makes this whole thing interesting?</h3> <p>It showcases (in Man vs Machine style) the issue of unambiguously discerning the meaning of the owl:sameAs claim expressed in the LCSH <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id17004728">Linked Data Space</a>.</p> <h4>Perspectives & Potential Confusion</h4> <p> From the Linked Data perspective, it may spook a few people to see owl:sameAs values such as: "info:lc/authorities/sh95000541", that cannot be de-referenced using HTTP. </p> <p> It may confuse a few people or user agents that see URI de-referencing as not necessarily HTTP specific, thereby attempting to de-reference the URI.URN on the assumption that it's associated with a "<a href="http://www.handle.net/overviews/overview.html" id="link-id155517a8">handle system</a>", for instance.</p> <p> It may even confuse RDFizer / RDFization middleware that use owl:sameAs as a <a href="http://dbpedia.org/resource/Data">data</a> provider attribution mechanism via hint/nudge URI values derived from original content / data URI.URLs that de-reference to nothing e.g., an original resource URI.<a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id119e0d80">URL</a> plus "#this" which produces URI.URN-URL -- think of this pattern as "owl:shameAs" in a sense :-)</p> <h3> Unambiguously Discerning Meaning</h3> <p> Simply bring OWL reasoning (inference rules and reasoners) into the mix, thereby negating human dialogue about interpretation which ultimately unveils a mesh of orthogonal view points. Remember, OWL is all about infrastructure that ultimately enables you to express yourself clearly i.e., say what you mean, and mean what you say. </p> <h3>Path to Clarity (using <a href="http://virtuoso.openlinksw.com" id="link-id1537aa68">Virtuoso</a>, its in-built Sponger Middleware, and Inference Engine):</h3> <ol> <li>GET the data into the Virtuoso Quad store -- what the sponger does via its <a href="http://linkeddata.uriburner.com/about/html/http://id.loc.gov/authorities/sh95000541#concept" id="link-id1669fa40">URIBurner Service</a> (while following designated predicates such as owl:sameAs in case they point to other mesh-able data sources)</li> <li>Query the data in Quad Store with "owl:sameAs" inference rules enabled</li> <li>Repeat the last step with the inference rules excluded.</li> </ol> <h4>Actual <a href="http://dbpedia.org/resource/SPARQL" id="link-id17374110">SPARQL</a> Queries:</h4> <ul> <li> <a href="http://demo.openlinksw.com/DAV/home/demo/Public/Queries/DataWeb/lcsh_www_subject_heading.isparql" id="link-id16c986d0">SPARQL Query against the HTTP based Subject Heading URI for WWW</a> </li> <li> <a href="http://demo.openlinksw.com/DAV/home/demo/Public/Queries/DataWeb/lcsh_www_subject_heading_sameAs_inference_on.isparql" id="link-id16d4fea0">SPARQL Query (with reasoning via inference rule for owl:sameAs)</a> against the URN based Subject Heading URI for WWW</li> <li> <a href="http://demo.openlinksw.com/DAV/home/demo/Public/Queries/DataWeb/lcsh_www_subject_heading_no_sameAs_inference_on.isparql" id="link-id11bad768">SPARQL Query (*without* reasoning via inference rule for owl:sameAs)</a> against the URN based Subject Heading URI for WWW</li> </ul> <h4>Observations:</h4> <p> The <a href="http://dbpedia.org/resource/SPARQL" id="link-ide6acf68">SPARQL</a> queries against the Graph generated and automatically populated by the Sponger reveal -- without human intervention-- that: "info:lc/authorities/sh95000541", is just an alternative name for < xmlns="http" id.loc.gov="id.loc.gov" authorities="authorities" sh95000541="sh95000541" concept="concept">, and that the graph produced by LCSH is self-describing enough for an OWL reasoner to figure this all out courtesy of the <a href="http://linkeddata.uriburner.com/about/html/http://www.w3.org/2002/07/owl%23sameAs" id="link-id13e364b0">owl:sameAs</a> property :-).</p> <p>Hopefully, this post also provides a simple example of how <a href="http://dbpedia.org/resource/Web_Ontology_Language" id="link-id158a3fe8">OWL</a> facilitates "Reasonable Linked Data". </p> <h3>Related</h3> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1455" id="link-id164e19f8">State of the Linked Data Web</a> </li> <li> <a href="http://www.mkbergman.com/?p=474" id="link-id11973d10">Making Linked Data Reasonable Using Description Logics Series</a> - post by <a href="http://community.linkeddata.org/dataspace/person/mkbergman#this" id="link-id1184bfb8">Mike Bergman</a> </li> </ul>
How Linked Data will change Advertising
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2009-03-22#1534
2009-03-23T04:39:49Z
2009-03-25T08:30:58-04:00
<p>This post is a reply to <a href="http://www.jasonkolb.com/" id="link-id11f11e90">Jason Kolb</a>'s post titled: <a href="http://www.jasonkolb.com/weblog/2009/03/using-advertising-to-take-over-the-world.html" id="link-id15528ae8">Using Advertising to Take Over the World</a>. Jason's post is a response to <a href="http://scobleizer.com/" id="link-id11a41fd0">Robert Scoble</a>'s post titled: <a href="http://scobleizer.com/2009/03/21/why-facebook-has-never-listened-and-why-it-definitely-wont-start-now/" id="link-id143e2d88">Why Facebook has never listened and why it definitely wonât start now.</a> </p> <p>Jason:</p> <p>Scoble is sensing what comes next, but in my opinion, describes it using an old obtrusive advertising model anecdote.</p> <p>I've penned a post or two about the "<a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1458" id="link-id15247e90">Magic of You</a>" which is all about the new <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id0x20b2da18">Web</a> power broker (<a href="http://dbpedia.org/resource/Entity" id="link-id15552ba0">Entity</a>: "You").</p> <p>Personally, I've long envisaged a complete overhaul of advertising where obtrusive advertising simply withers away; ultimately replaced by an unobtrusive model that is driven by individualized relevance and high doses of serendipity. Basically, this is ultimately about "taking the Ad out of item placement in Web pages".</p> <p>The fundamental ingredients of an unobtrusive advertising landscape would include the following Human facts:</p> <ol> <li>We are social beings and need stuff from time to time </li> <li>We know what we need and would like to "Find stuff" when we are in "I Need Stuff" mode.</li> </ol> <p>Ideally, we would like to be able to simply state the following, via a Web accessible profile:</p> <ol> <li> Here are my "Wants" or "Needs" (my Wish-List) </li> <li> Here are the products and services that I "Offer" (my Offer-List).</li> </ol> <p>Now put the above into the <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id157388c8">context</a> of an evolving Web where <a href="http://dbpedia.org/resource/Data" id="link-id0x226b34d0">data</a> items are becoming more visible by the second, courtesy of the "<a href="http://www.w3.org/DesignIssues/LinkedData.html" id="link-id11ab8f80">Linked Data" meme</a>. Thus, things that weren't discernable via the Web: "People", "Places", "Music", "Books", "Products", etc., become much easier to identify and describe.</p> <p>Assuming the comments above hold true re. the Web's evolution into a collection of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id11bf4830">Linked Data</a> Spaces, and the following occur:</p> <ol> <li> Structured profile pages become the basic units of Web presence</li> <li> Wish-Lists and Offer-Lists are exposed by profile pages</li> </ol> <p>Wish-Lists and Offer-Lists will gradually start bonding with increasing degrees of serendipity courtesy of exponential growth in Linked Data <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id154a92f8">Web</a> density. </p> <p>So based on what I've stated so far, Scoble would simply browse the Web or visit his profile page, and in either scenario enjoy a "<a href="http://www.youtube.com/watch?v=nQbVD5hlddk" id="link-id118d3878">minority report</a>" style of experience albeit all under his control (since he is the one driving his Web user agent).</p> <p>What I describe above simply comes down to "Wish-lists" and associated recommendations becoming the norm outside the confines of Amazon's <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id11a6c710">data space</a> on the Web. Serendipitous discovery, intelligent lookups, and linkages are going to be the fundamental essence of Linked Data Web oriented applications, services, agents.</p> <p>Beyond Scoble, it's also important to note that access to data will be controlled by entity "You". Your data space on the Web will be something you will controll access to in a myriad of ways, and it will include the option to provide licensed access to commercial entities on your terms. Naturally, you will also determine the currency that facilitates the value exchange :-)</p> <h3>Related</h3> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1458" id="link-id11799a58">The Numerati & The Magic of You!</a> </li> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1442" id="link-id15246d50">Serendipitous Discovery Quotient (SDQ) Explained</a> </li> <li> <a href="http://www.youtube.com/watch?v=nQbVD5hlddk" id="link-id1360f6d0">Minority Report Clip</a> </li> </ul>
Simple Compare & Contrast of Web 1.0, 2.0, and 3.0 (Update 1)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2009-03-14#1531
2009-03-14T18:20:00Z
2009-04-29T13:21:25.000004-04:00
<p>Here is a tabulated "compare and contrast" of <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> usage patterns 1.0, 2.0, and 3.0.</p> <table border="1" width="715" height="286"> <tbody> <tr> <td>Â </td> <td><strong>Web 1.0</strong></td> <td><strong>Web 2.0</strong></td> <td><strong>Web 3.0</strong></td> </tr> <tr> <td><strong>Simple Definition</strong></td> <td>Interactive / Visual Web</td> <td>Programmable Web</td> <td><a href="http://dbpedia.org/resource/Linked_Data" id="link-id117a9a98">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id146bcdb0">Web</a></td> </tr> <tr> <td><strong>Unit of Presence</strong></td> <td>Web Page</td> <td>Web Service Endpoint</td> <td><a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id11a66c60">Data Space</a> (named structured data enclave)</td> </tr> <tr> <td><strong>Unit of Value Exchange</strong></td> <td>Page <a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id146083f8">URL</a></td> <td>Endpoint URL for API</td> <td>Resource / <a href="http://dbpedia.org/resource/Entity" id="link-id121b2148">Entity</a> / Object <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id1467ed00">URI</a></td> </tr> <tr> <td><strong>Data Granularity</strong></td> <td>Low (HTML)</td> <td>Medium (XML)</td> <td>High (RDF)</td> </tr> <tr> <td><strong>Defining Services</strong></td> <td>Search </td> <td>Community (Blogs to Social Networks) </td> <td>Find</td> </tr> <tr> <td><strong>Participation Quotient</strong></td> <td>Low</td> <td>Medium</td> <td>High</td> </tr> <tr> <td><strong>Serendipitous Discovery Quotient </strong></td> <td>Low</td> <td>Medium</td> <td>High</td> </tr> <tr> <td><strong>Data Referencability Quotient </strong></td> <td>Low (Documents)</td> <td>Medium (Documents)</td> <td>High (Documents and their constituent Data)</td> </tr> <tr> <td><strong>Subjectivity Quotient</strong></td> <td>High</td> <td>Medium (from A-list bloggers to select source and partner lists)</td> <td>Low (everything is discovered via URIs)</td> </tr> <tr> <td> <strong><a href="http://dbpedia.org/resource/Transclusion" id="link-id155308d8">Transclusence</a> </strong></td> <td>Low</td> <td>Medium (Code driven Mashups)</td> <td>HIgh (Data driven Meshups)</td> </tr> <tr> <td><strong>What You See Is What You Prefer (WYSIWYP)</strong></td> <td>Low</td> <td>Medium </td> <td>High (negotiated representation of resource descriptions)</td> </tr> <tr> <td><strong>Open Data Access (Data Accessibility)</strong></td> <td>Low</td> <td>Medium (Silos)</td> <td>High (no Silos)</td> </tr> <tr> <td><strong>Identity Issues Handling</strong></td> <td>Low</td> <td>Medium (<a href="http://dbpedia.org/resource/OpenID" id="link-id119d77f8">OpenID</a>)</td> <td><p>High (<a href="http://esw.w3.org/topic/foaf+ssl" id="link-id135cc348">FOAF+SSL</a>)</p></td> </tr> <tr> <td><strong>Solution Deployment Model</strong></td> <td>Centralized</td> <td>Centralized with sprinklings of Federation</td> <td>Federated with function specific Centralization (e.g. Lookup hubs like <a href="http://community.linkeddata.org/dataspace/organization/lod#this" id="link-id1496d1d0">LOD</a> Cloud or <a href="http://dbpedia.org/resource/DBpedia" id="link-id1571f690">DBpedia</a>)</td> </tr> <tr> <td><strong>Data Model Orientation</strong></td> <td>Logical (Tree based DOM)</td> <td>Logical (Tree based XML)</td> <td>Conceptual (Graph based RDF)</td> </tr> <tr> <td><strong>User Interface Issues</strong></td> <td>Dynamically generated static interfaces</td> <td>Dyanically generated interafaces with semi-dynamic interfaces (courtesy of XSLT or <a href="http://dbpedia.org/resource/XQuery" id="link-id118399e8">XQuery</a>/<a href="http://dbpedia.org/resource/XPath" id="link-id14b00ba0">XPath</a>)</td> <td>Dynamic Interfaces (pre- and post-generation) courtesy of self-describing nature of RDF</td> </tr> <tr> <td><strong>Data Querying</strong></td> <td><a href="http://dbpedia.org/resource/Full_text_search" id="link-id14fdd948">Full Text Search</a></td> <td>Full Text Search</td> <td>Full Text Search + Structured Graph Pattern Query Language (<a href="http://dbpedia.org/resource/SPARQL" id="link-id154a9368">SPARQL</a>)</td> </tr> <tr> <td><strong>What Each Delivers</strong></td> <td>Democratized Publishing</td> <td>Democratized Journalism & Commentary (Citizen Journalists & Commentators)</td> <td>Democratized Analysis (Citizen Data Analysts)</td> </tr> <tr> <td> <strong><a href="http://dbpedia.org/resource/Star_Wars" id="link-id155ce920">Star Wars Edition Analogy</a> </strong></td> <td>Star Wars (original fight for decentralization via rebellion)</td> <td>Empire Strikes Back (centralization and data silos make comeback)</td> <td>Return of the JEDI (<a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1474" id="link-id11706640">FORCE</a> emerges and facilitates decentralization from "Identity" all the way to "Open Data Access" and "Negotiable Descriptive Data Representation")</td> </tr> </tbody> </table> <p>Naturally, I am not expecting everyone to agree with <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id15be20c0">me</a>. I am simply making my contribution to what will remain facinating discourse for a long time to come :-)</p> <h3>Related</h3> <ul> <li> <a href="http://novaspivack.typepad.com/nova_spivacks_weblog/2007/10/web-30----the-a.html" id="link-id14a9d738">Web 3.0 The Best Official Definition Imaginable</a> -- Nova Spivack's </li> </ul>
Response to: What is Web 3.0 and Why Should I Care?
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2009-01-29#1524
2009-01-29T18:16:44Z
2009-01-29T13:45:11-05:00
<p>Another post done in response to lost comments. This time, the comments relate to Robin Bloor's article titled: <a href="http://havemacwillblog.com/2008/12/16/what-is-web-30-and-why-should-i-care/" id="link-id12e79d70">What is Web 3.0 and Why Should I Care?</a> </p> <p>Robin:</p> <p> <a href="http://dbpedia.org/resource/Web_3.0" id="link-id12db8fb0">Web 3.0 </a>is fundamentally about the World Wid Web becoming a structured database equipped with a formal <a href="http://dbpedia.org/resource/Data">data</a> model (RDF which is a moniker for <a href="http://dbpedia.org/resource/Entity-attribute-value_model" id="link-id11490990">Entity-Attribute-Value</a> with Classes & Relationships based Graph Model), query language, and a protocol for handling divrerse data representational requirements via negotiation</p>. <p>Web 3.0 is about a Web that facilitates serendipitous discovery of relevant things; thereby making serendipitous discovery quotient (SDQ), rather than search engine optimization (SEO), the critical success factor that drives how resources get published on the Web.</p> <p>Personally, I believe we are on the cusp of a major industry inflection re. how we interact with data hosted in computing spaces. In a nutshell, the conceptual model interaction based on real-world entities such as people, places, and other things (including abstract subject matter) will usurp traditional logical model interaction based on rows and columns of typed and/or untyped literal values exemplified by relational data access and management systems.</p> <p>Labels such as "Web 3.0", "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id13664538">Linked Data</a>", and "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id157ff968">Semantic Web</a>", are simply about the aforementioned model transition playing out on the <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id114bd0e8">World Wide Web</a> and across private Linked Data Webs such as Intranets & Extranets, as exemplified emergence of the "Master Data Management" label/buzzword.</p> <h3>What's the critical infrastructure supporting Web 3.0?</h3> <p>As was the case with Web Services re. Web 2.0, there is a critical piece of infrastructure driving the evolution in question, and in this case it comes down to the evolution of Hyperlinking.</p> <p>We now have a new and complimentary variant of Hyperlinking commonly referred to as "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id152ed150">Hyperdata</a>" that now sits alongside "Hypertext". Hyperdata when used in conjunction with HTTP based URIs as Data Source Names (or Identifiers), delivers a potent and granular data access mechanism scoped down to the datum (object or record) level; which is much different from the document (record or <a href="http://dbpedia.org/resource/Entity" id="link-id1141e830">entity</a> container) level linkage that Hypertext accords.</p> <p>In addition, the incorporation of HTTP into this new and enhanced granular Data Source Naming mechanism also addresses past challenges relating to separation of data, data representation, and data transmission protocols -- remember XDR woes familiar to all sockets level programmers -- courtesy of in-built content negotiation. Hence, via a simple HTTP GET --against a Data Source Name exposed by a Hyperdata link -- I can negotiate (from client or server sides) the exact representation of the description (entity-attribute-value graph) of an Entity / Data Object / Resource, dispatched by a data server.</p> <blockquote>For example, this is how a description of entity "<strong><a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id141ce520">Me</a></strong>" ends up being available in (X)HTML or RDF document representations (as you will observe when you click on that link to my Personal <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id15f9fed0">URI</a>).</blockquote> <p> The foundation of what I describe above comes from:</p> <ol> <li> Entity-Attribute-Value & Class Relationship Data Model (originating from LISP era with detours via the <a href="http://dbpedia.org/resource/Object_database" id="link-id12db8fb0">Object Database</a> era. into the Triples approach in RDF) </li> <li>Use of HTTP based Identifiers in the Entity <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29" id="link-id1193af48">ID</a> construction process</li> <li> <a href="http://dbpedia.org/resource/SPARQL" id="link-id1348f188">SPARQL</a> query language for the Data Model.</li> </ol> <p>Some live examples from <a href="http://dbpedia.org/resource/DBpedia" id="link-id12e62a50">DBpedia</a>:</p> <ul> <li> http://dbpedia.org/resource/Linked_Data</li> <li>http://dbpedia.org/resource/Hyperdata</li> <li>http://dbpedia.org/resource/Entity-attribute-value_model</li> <li>http://dbpedia.org/resource/Benjamin_Franklin</li> </ul> <h3>Related</h3> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1519?sid=5097848d70f69738bd366e2b6374672c&realm=wa" id="link-id13c31500">The End of RDBMS Primacy is Nigh</a> </li> <li> <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData" id="link-id1356e6a0">Linking Open Data Community</a> </li> </ul>
Virtuoso+DBpedia AMI for EC2 now Live!
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-12-01#1490
2008-12-01T16:04:28Z
2008-12-12T11:22:27-05:00
<h3>What is <a href="http://virtuoso.openlinksw.com" id="link-id11015c60">Virtuoso</a>+<a href="http://dbpedia.org/resource/DBpedia" id="link-id1140b6f0">DBpedia</a> AMI for EC2?</h3> <p>A pre-installed and fully tuned edition of Virtuoso that includes a fully configured DBpedia instance on Amazon's EC2 Cloud platform.</p> <h3>Benefits?</h3> <p>Generally, it provides a no hassles mechanism for instantiating personal, organization, or service specific instances of DBpedia within approximately 1.5 hours as opposed to a lengthy rebuild from RDF source <a href="http://dbpedia.org/resource/Data">data</a> that takes between 8 - 22 hours depending on machine hardware configuration and host operating system resources.</p> <p>From a <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> Entrepreneur perspective it offers all of the generic benefits of a <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/ODSInstallationEC2" id="link-id1148ac90">Virtuoso EC2 AMI</a> plus the following:</p> <ol> <li> Instant bootstrap of a dense Lookup Hub for <a href="http://dbpedia.org/resource/Linked_Data" id="link-id14c94590">Linked Data Web</a> oriented solutions</li> <li> No exposure to any of the complexities and nuances associated with deployment of dereferencable URIs (you have a DBpedia replica)</li> <li> Predictable performance and scalability due localization of query processing (you aren't sharing the public DBpedia server with the rest of the world). </li> </ol> <h3>Features:</h3> <ol> <li> DBpedia public instance functionality replica (re. RDF and (X)HTML resource description representations & <a href="http://dbpedia.org/resource/SPARQL" id="link-id1188e5f0">SPARQL</a> endpoint)</li> <li> Local <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id117092a8">URI</a> de-referencing (so no contention with public endpoint) as part of the Linked Data Deployment</li> <li> Fully tuned Virtuoso instance for DBpedia data set hosting. </li> </ol> <h3>How Do I Get Started?</h3> Simply read the <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtEC2AMIDBpediaInstall" id="link-id15836e90">Virtuoso-DBpedia EC2 AMI installation guide</a>. <p>Here are a few live examples of DBpedia resource URIs deployed and de-referencable via one of my EC2 based <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id14930ab0">personal data spaces</a>:</p> <ul> <li> <a href="http://kingsley.idehen.name/resource/Linked_Data" id="link-id1104a740">Linked Data</a> </li> <li> <a href="http://kingsley.idehen.name/resource/Entity-attribute-value_model" id="link-id11200f48">Entity-Attribute-Value</a> (aka. Triples) Model</li> <li> <a href="http://kingsley.idehen.name/resource/Hyperdata" id="link-id11235ef0">Hyperdata</a> Linking (aka. <a href="http://kingsley.idehen.name/resource/Object_hyperlinking" id="link-id15493b90">Object Hyperlinking</a>)</li> <li> <a href="http://kingsley.idehen.name/resource/Barack_Obama" id="link-id15497580">Barack Obama</a> </li> </ul>
Introducing Virtuoso Universal Server (Cloud Edition) for Amazon EC2
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-11-28#1489
2008-11-28T19:27:12Z
2008-11-28T16:06:02.000006-05:00
<h3>What is it?</h3> <p>A pre-installed edition of <a href="http://virtuoso.openlinksw.com" id="link-id14bea838">Virtuoso</a> for Amazon's EC2 Cloud platform.</p> <h3>What does it offer?</h3> From a <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> Entrepreneur perspective it offers: <ol> <li> Low cost entry point to a game-changing Web 3.0+ (and beyond) platform that combines <a href="http://dbpedia.org/resource/SQL" id="link-id11309b38">SQL</a>, <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id135f7988">RDF</a>, XML, and Web Services functionality</li> <li> Flexible variable cost model (courtesy of <a href="http://aws.amazon.com/devpay/" id="link-id17941018">EC2 DevPay</a>) tightly bound to revenue generated by your services</li> <li> Delivers federated and/or centralized model flexibility for you SaaS based solutions</li> <li> Simple entry point for developing and deploying sophisticated database driven applications (SQL or RDF <a href="http://dbpedia.org/resource/Linked_Data" id="link-id14ea6b10">Linked Data Web</a> oriented)</li> <li> Complete framework for exploiting OpenID, OAuth (including Role enhancements) that simplifies exploitation of these vital Identity and <a href="http://dbpedia.org/resource/Data">Data</a> Access technologies</li> <li>Easily implement RDF Linked Data based Mail, Blogging, Wikis, Bookmarks, Calendaring, Discussion Forums, Tagging, Social-Networking as <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id11519928">Data Space</a> (data containers) features of your application or service offering</li> <li>Instant alleviation of challenges (e.g. service costs and agility) associated with <a href="http://dbpedia.org/resource/DataPortability" id="link-id111cb610">Data Portability</a> and Open Data Access across Web 2.0 data silos</li> <li> LDAP integration for <a href="http://dbpedia.org/resource/Intranet" id="link-id114a8270">Intranet</a> / <a href="http://dbpedia.org/resource/Extranet" id="link-id10fe4f08">Extranet</a> style applications.</li> </ol> <p>From the DBMS engine perspective it provides you with one or more pre-configured instances of Virtuoso that enable immediate exploitation of the following services:</p> <ol> <li> RDF Database (a Quad Store with <a href="http://dbpedia.org/resource/SPARQL" id="link-id11911bf8">SPARQL</a> & SPARUL Language & Protocol support)</li> <li> <a href="http://dbpedia.org/resource/SQL" id="link-id110544c8">SQL</a> Database (with <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id1524c7d0">ODBC</a>, <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id14cfb658">JDBC</a>, OLE-DB, <a href="http://dbpedia.org/resource/ADO.NET" id="link-id110ec6c8">ADO</a>.NET, and XMLA driver access)</li> <li>XML Database (XML Schema, <a href="http://dbpedia.org/resource/XQuery" id="link-id10ebf218">XQuery</a>/<a href="http://dbpedia.org/resource/XPath" id="link-id142a7898">Xpath</a>, XSLT, Full Text Indexing)</li> <li>Full Text Indexing.</li> </ol> <p>From a Middleware perspective it provides:</p> <ol> <li> RDF Views (Wrappers / Semantic Covers) over SQL, XML, and other data sources accessible via SOAP or REST style Web Services</li> <li> Sponger Service for converting non RDF <a href="http://dbpedia.org/resource/Information" id="link-id11931c60">information</a> resources into RDF <a href="http://dbpedia.org/resource/Linked_Data" id="link-id118f7168">Linked Data</a> "on the fly" via a large collection of pre-installed RDFizer Cartridges.</li> </ol> <p>From the Web Server Platform perspective it provides an alternative to LAMP stack components such as <a href="http://dbpedia.org/resource/MySQL" id="link-id10f7b780">MySQL</a> and Apace by offering</p> <ol> <li> HTTP Web Server</li> <li> WebDAV Server</li> <li> Web <a href="http://dbpedia.org/resource/Application_server" id="link-id1268daa8">Application Server</a> (includes <a href="http://dbpedia.org/resource/PHP" id="link-id1585d238">PHP</a> runtime hosting)</li> <li> SOAP or REST style Web Services Deployment</li> <li> RDF Linked Data Deployment</li> <li> SPARQL (SPARQL Query Language) and SPARUL (SPARQL Update Language) endpoints</li> <li>Virtuoso Hosted PHP packages for <a href="http://dbpedia.org/resource/MediaWiki" id="link-id15568818">MediaWiki</a>, <a href="http://dbpedia.org/resource/Drupal" id="link-id110bd7a8">Drupal</a>, <a href="http://dbpedia.org/resource/WordPress" id="link-id10f66918">Wordpress</a>, and <a href="http://dbpedia.org/resource/PhpBB" id="link-id13fda4d0">phpBB3</a> (just install the relevant Virtuoso Distro. Package). </li> </ol> <p>From the general System Administrator's perspective it provides:</p> <ol> <li> Online Backups (Backup Set dispatched to S3 buckets, FTP, or HTTP/WebDAV server locations)</li> <li>Synchronized Incremental Backups to Backup Set locations</li> <li>Backup Restore from Backup Set location (without exiting to EC2 shell).</li> </ol> <p>Higher level user oriented offerings include:</p> <ol> <li>OpenLink Data Explorer front-end for exploring the burgeoning Linked Data <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id11646dc8">Web</a> </li> <li> Ajax based SPARQL Query Builder (iSPARQL) that enables SPARQL Query construction by Example</li> <li>Ajax based SQL Query Builder (QBE) that enables SQL Query construction by Example.</li> </ol> <p>For Web 2.0 / 3.0 users, developers, and entrepreneurs it offers it includes Distributed Collaboration Tools & Social Media realm functionality courtesy of <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id11009930">ODS</a> that includes:</p> <ol> <li> Point of presence on the Linked Data Web that meshes your Identity and your Data via URIs</li> <li> System generated Social Network Profile & Contact Data via <a href="http://dbpedia.org/resource/Friend_of_a_friend" id="link-id1185a1c0">FOAF</a>?</li> <li> System generated <a href="http://dbpedia.org/resource/SIOC" id="link-id14791890">SIOC</a> (Semantically Interconnected Online Community) <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id1577cad8">Data Space</a> (that includes a Social Graph) exposing all your Web data in RDF Linked Data form</li> <li> System generated OpenID and automatic integration with FOAF</li> <li> Transparent Data Integration across Facebook, Digg, LinkedIn, FriendFeed, Twitter, and any other Web 2.0 data space equipped with RSS / Atom support and/or REST style Web Services</li> <li> In-built support for SyncML which enables data synchronization with Mobile Phones.</li> </ol> <h3>How Do I Get Going with It?</h3> <ul> <li> <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/ODSInstallationEC2" id="link-id114e1600">Standard Installation Guide</a> </li> <li> <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtEC2AMIDBpediaInstall" id="link-id110a98e8">Personal or Service Specific DBpedia Installation Guide</a> </li> </ul>
YODA & the Data FORCE
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-11-03#1474
2008-11-03T17:32:49Z
2010-07-20T13:53:06-04:00
<p> The original <a href="http://www.w3.org/History/1989/proposal.html" id="link-id13b25ba8">design document</a> (by <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id181e4c70">TimBL</a>) that lead to the WWW (*an important read*) was very clear about the need to create an "<a href="http://dbpedia.org/resource/Information" id="link-id10f23918">information</a> space" that connects heterogeneous <a href="http://dbpedia.org/resource/Data">data</a> sources. Unfortunately, in trying to create a moniker to distinguish one aspect of the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> (the Linked Document Web) from the part that was overlooked (the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id11096818">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1b9c6b98">Web</a>), we ended up with a project code name that's fundamentally a misnomer in the form of: "The <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id10ffe228">Semantic Web</a>".</p> <p> If we could just take "The Semantic Web" moniker for what it was -- a code name for an aspect of the Web -- and move on, things will get much clearer, fast!</p> <p> Basically, what is/was the "Semantic Web" should really have been code named: ("You" Oriented Data Access) as a play on: Yoda's appreciation of the FORCE (Fact ORiented Connected Entities) -- the power of inter galactic, interlinked, structured data, fashioned by the <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id191b22e0">World Wide Web</a> courtesy of the HTTP protocol.</p> <div> <img src="http://motivationalspeaker1.files.wordpress.com/2008/03/yoda.jpg" /> </div> <p> As stated in a earlier post, the next phase of the Web is all about the magic of <a href="http://dbpedia.org/resource/Entity" id="link-id1a7395f0">entity</a> "You". The single most important item of reference to every Web user would be the Person Entity <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29" id="link-id16ab9308">ID</a> (<a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id1d403c88">URI</a>). Just by remembering your Entity ID, you will have intelligent pathways across, and into, the FORCE that the Linked Data Web delivers. The quality of the pathways and increased density of the FORCE are the keys to high <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1442" id="link-id1c549b28">SDQ</a> (tomorrows SEO). Thus, the SDQ of URIs will ultimately be the unit determinant of value to Web Users, along the following personal lines, hence the critical platform questions:</p> <ul> <li> Does your platform give <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id175afe00">me</a> Identity (a URI) with high SDQ?</li> <li> Do the Data Source Names (URIs) in your Data Spaces deliver high SDQ?</li> </ul> <p> While most industry commentators continue to ponder and pontificate about what "The Semantic Web" is (unfortunately), the real thing (the "FORCE") is already here, and self-enhancing rapidly.</p> <p> Assuming we now accept the FORCE is simply an RDF based Linked Data moniker, and that RDF Linked Data is all about the Web as a structured database, we should start to move our attention over to practical exploitation of this burgeoning global database, and in doing so we should not discard <a href="http://dbpedia.org/resource/Knowledge" id="link-id19e2c6e0">knowledge</a> from the past such as the many great examples available gratis from the Relational Database realm. For instance, we should start paying attention to the discovery, development, and deployment of high level tools such as query builders, report writers, and intelligence oriented analytic tools, none of which should -- at first point of interaction -- expose raw RDF or the <a href="http://dbpedia.org/resource/SPARQL" id="link-id117921f0">SPARQL</a> query language. Along similar lines of thinking, we also need development environments and frameworks that are counterparts to Visual Studio, ACCESS, File Maker, and the like.</p> <h3> Related</h3> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1458" id="link-id1cec1a40">Numerati & The Magic of You!</a> </li> </ul>
Entity Oriented Data Access
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-11-03#1475
2008-11-03T17:32:08Z
2008-11-03T22:51:48-05:00
<p>Recent <a href="http://en.wiktionary.org/wiki/perturbation" id="link-id1bdb9ec8">perturbations</a> in <a href="http://dbpedia.org/resource/Data">Data</a> Access and Data Management technology realms are clear signs of an imminent inflection. In a nutshell, the focus of data access is moving from the "Logical Level" (what you see if you've ever looked at a DBMS schema derived from an <a href="http://dbpedia.org/resource/Entity" id="link-id18735f38">Entity</a> Data Model) to the "Conceptual Level" (i.e., the Entity Model becoming concrete).</p> <p>In recent times I've stumbled across Master Data Management (MDM) which is all about entities that provide holistic views of enterprise data (or what I call: <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id18f07ec8">Context</a> Lenses). I've also stumbled across emerging tensions in the .NET realm between Linq to Entities and Linq to <a href="http://dbpedia.org/resource/SQL" id="link-id19429e88">SQL</a>, where in either case the fundamental issues comes down to the optimal paths "Conceptual Level Access" over the "Logical Logical Level" when dealing with data access in the .NET realm.</p> <p> Strangely, the emerging realm of RDF <a href="http://dbpedia.org/resource/Linked_Data" id="link-id115b3780">Linked Data</a>, MDM, and .NET's Entity Frameworks, remain strangely disconnected.</p> <p>Another oddity is the obvious, but barely acknowledged, blurring of the lines between the "traditional enterprise employee" and the "individual <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> <a href="http://dbpedia.org/resource/Netizen" id="link-id0x1ffd8640">netizen</a>". The fusion between these entities is one of the most defining characteristics of how the Web is reshaping the data landscape.</p> <p>At the current time, I tend to crystalize my data access world view under the moniker: <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1474" id="link-id1544ee60">YODA</a> ("You" Oriented Data Access), based on the following:</p> <ol> <li> Entities are the new focal point of data access, management, and integration </li> <li> "You" are the entry point (Data Source Name) into this new realm of inter connected Entities that the Web exposes</li> <li> "You" the "Person" Entity is associated with many other "Things" such as "Organizations", "Other People", "Books", "Music", "Subject Matter" etc. </li> <li> "You" the "Person" needs Identity in this new global database, which is why "You" need to Identify "Yourself" using an an HTTP based Entity <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29" id="link-id145d0438">ID</a> (aka. <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id1873ad08">URI</a>) </li> <li> When "You" have an ID for "Yourself" it becomes much easier for the essence of "You" to be discovered via the Web </li> <li> When "Others" have IDs for "Themselves" on the Web it becomes much easier for "You" to serendipitously discover or explicitly "Find" things on the Web. </li> </ol> <h3>Related</h3> <ul> <li> <a href="http://www.infoq.com/news/2008/11/DLINQ-Future" id="link-id17501eb0">Is LINQ to SQL truly dead?</a> </li> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1420" id="link-id10fbf920">Virtuoso, Linked Data, and Linq2Rdf</a> </li> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1224" id="link-id19c44b00">Enterprise 0.0, Linked Data, and the Semantic Data Web</a> (*an old post*)</li> </ul>
Welcoming Freebase to the Linked Data Web
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-31#1468
2008-10-31T15:02:00Z
2008-10-31T11:23:35.000002-04:00
Finally! That's all I can say re. Freebase :-) They've now plugged their database and their community driven <a href="http://dbpedia.org/resource/Data">data</a> curation efforts into the burgeoning <a href="http://dbpedia.org/resource/Linked_Data" id="link-id111fe3b0">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1cd46860">Web</a>. <p>Here are some examples of how we distill Entities (People, Places, Music, and other things) from Freebase (X)HTML pages (meaning: we don't have to start from RDF <a href="http://dbpedia.org/resource/Information" id="link-id1115cfe8">information</a> resources as data sources for the eventual RDF Linked Data we generate):</p> <ul> <li> <a href="http://linkeddata.uriburner.com/about/html/http://www.freebase.com/view/en/barack_obama" id="link-id1957da00">Barack Obama</a> </li> <li> <a href="http://linkeddata.uriburner.com/about/html/http://www.freebase.com/view/en/hillary_rodham_clinton" id="link-id175786d8">Hillary Rodham Clinton</a> </li> <li> <a href="http://linkeddata.uriburner.com/about/html/http://www.freebase.com/view/en/john_mccain" id="link-id1c7ada58">Johan McCain</a> </li> </ul> <p>Tip: Install our <a href="http://ode.openlinksw.com" id="link-id17a69a20">OpenLink Data Explorer</a> extension for Firefox. Once installed, simply browse through Freebase, and whenever you encounter a page about something of interest, simply use the following sequences to distill (via the Page Description feature) the entities from the page you are reading:</p> <ul> <li> CTRL-Click (Mac OS X) </li> <li> Right+Click (Windows & Linux) </li> </ul> <h3>Related</h3> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1455" id="link-id17758840">State of the Linked Data Web</a> </li> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1454" id="link-idea627e8">Dynamic Linked Data Web Constellation</a> </li> </ul>
Dog-fooding: Linked Data and OpenLink Product Portfolio
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-24#1463
2008-10-24T22:05:42Z
2008-10-24T18:13:50-04:00
<p>Thanks to RDF and <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1cf5c700">Linked Data</a>, it's becoming a lot easier for us to explain and reveal the depth of the OpenLink technology portfolio.</p> <p>Here is a look at our offerings by product family:</p> <ul> <li> <a href="http://data.openlinksw.com/about/html/http://data.openlinksw.com/oplweb/product_family/uda" id="link-id1161c6d0">Universal Data Access Drivers</a> </li> <li> <a href="http://data.openlinksw.com/about/html/http://data.openlinksw.com/oplweb/product_family/virtuoso" id="link-id17945fc8">Virtuoso</a> </li> <li> <a href="http://data.openlinksw.com/about/html/http://data.openlinksw.com/oplweb/product_family/dca" id="link-id10f899c0">Distributed Collaborative Applications</a> (DCA)</li> <li> <a href="http://data.openlinksw.com/oplweb/product_family/development" id="link-id1c55ac70">Developer Kits & Frameworks</a> </li> <li> <a href="http://data.openlinksw.com/oplweb/product_family/utilities" id="link-id1a735e50">Benchamark & Diagnostic Utilities</a> </li> </ul> <p>As you explore the <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id10fc4af8">Linked Data graph</a> exposed via our product portfolio, I expect you to experience, or at least spot, the virtuous potential of high SDQ (<a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1442" id="link-id13847698">Serendipitous Discovery Quotient</a>) courtesy of Linked Data, which is <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> 3.0's answer to <a href="http://dbpedia.org/resource/Search_engine_optimization" id="link-id115ad4f0">SEO</a>. For instance, how <a href="http://linkeddata.uriburner.com/about/html/http://data.openlinksw.com/oplweb/dbms_family/Oracle" id="link-id1cda63c8">Database</a>, <a href="http://data.openlinksw.com/oplweb/opsys_family/Windows" id="link-id1a803f18">Operating System</a>, and <a href="http://data.openlinksw.com/oplweb/processor/universal_1" id="link-id19cbaba0">Processor</a> family paths in the product portfolio graph (data network) unveil a lot more about <a href="http://linkeddata.uriburner.com/about/html/http://www.openlinksw.com/dataspace/organization/openlink%23this" id="link-ide9b7070">OpenLink Software</a> than meets the proverbial "eye" :-)</p>
The Virtuous Web of Linked Data -- Business Perspective (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-24#1462
2008-10-24T15:56:55Z
2008-10-24T14:49:18-04:00
<a href="http://www.openlinksw.com/weblog/oerling" id="link-id115d8420">Orri Erling</a> (Program Manager: OpenLink <a href="http://virtuoso.openlinksw.com" id="link-id111293d8">Virtuoso</a>) has dropped a well explained reiteration of the essence of the "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id115d85a0">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1161b138">Web</a>" or "<a href="http://dbpedia.org/resource/Data">Data</a> Web" with an emphasis on the business value. His post is titled: <a href="http://www.openlinksw.com/weblog/oerling/?id=1459" id="link-id1109d340">State of the Semantic Web (Part 1) - Sociology, Business, and Messaging</a>. <p>Typically, Orri's post are targeted at the hard core RDF and <a href="http://dbpedia.org/resource/SQL" id="link-id115e2818">SQL</a> DBMS audiences, but in this particular post, he shoots straight at the business community revealing "Opportunity Cost" containment as the invisible driver behind the business aspects of any market inflection.</p> <p>Remember, the Web isn't ubiquitous because its users mastered the mechanics and virtues of HTML and/or HTTP. Web ubiquity is a function of the opportunity cost of not being on the Web, courtesy of the network effects of hyperlinked documents -- i.e., the instant gratification of traversing documents on the Web via a single click action. In similar fashion, the Linked Data Web's ubiquity will simply come down to the opportunity cost of not being "inside the Web", courtesy of the network effects of hyperlinked entities (documents, people, music, books, and other "Things"). </p> <p>Here are some excerpts from Orri's post:</p> <blockquote> <cite>Every time there is a major shift in technology, this shift needs to be motivated by addressing a new class of problem. This means doing something that could not be done before. The last time this happened was when the relational database became the dominant IT technology. At that time, the questions involved putting the enterprise in the database and building a cluster of line of business applications around the database. The argument for the <a href="http://dbpedia.org/resource/Relational_database_management_system" id="link-id113779e8">RDBMS</a> was that you did not have to constrain the set of queries that might later be made, when designing the database. In other words, it was making things more ad hoc. This was opposed then on grounds of being less efficient than the hierarchical and network databases which the relational eventually replaced.</cite> <cite>Today, the point of the Data Web is that you do not have to constrain what your data can join or integrate with, when you design your database. The counter-argument is that this is slow and geeky and not scalable. See the similarity?</cite> <cite>A difference is that we are not specifically aiming at replacing the RDBMS. In fact, if you know exactly what you will query and have a well defined workload, a relational representation optimized for the workload will give you about 10x the performance of the equivalent RDF warehouse. OLTP remains a relational-only domain. </cite> <cite>However, when we are talking about doing queries and analytics against the Web, or even against more than a handful of relational systems, the things which make RDBMS good become problematic.</cite> </blockquote> <p>If we think about Web 1.0 as a period where the distinguishing noun was: "Author", and Web 2.0 the noun: "Journalist", we should be able to see that what comes next is the noun: "Analyst". This new generation analyst would be equipped with de-referencable Web Identity courtesy of their Person <a href="http://dbpedia.org/resource/Entity" id="link-id111ab7d0">Entity</a> <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id10f23220">URI</a>. The analyst's URI would also be the critical component of Web based low cost attribution ecosystem; one that ultimately turns the URI into the analyst's brand emblem / imprint.</p> <h3>Related</h3> <ul> <a href="http://blog.whatfettle.com/about/" id="link-id1120fb88">Paul Downey</a> - <a href="http://blog.whatfettle.com/2008/10/24/on-the-vanity-of-demanding-attribution/" id="link-id111590b8">Vanity of Demanding Attribution</a> </ul>
The Numerati & The Magic of You!
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-21#1458
2008-10-21T15:42:52Z
2010-02-01T08:55:22.000017-05:00
<p>In response to <a href="http://www.readwriteweb.com" id="link-id111d6ae8">ReadWriteWeb</a>'s post titled: <a href="http://www.readwriteweb.com/archives/who_will_control_your_data_web30.php" id="link-id113c27e0">Who will own your Data in Web 3.0 World?</a>. My simple answer: You!</p> <p>You will control your data in the Web 3.0 realm. If somehow this remains somewhat incomprehensible and nebulous (as is typical in this emerging realm) then simply think about this as: The Magic of You!</p> <p>Remember, "You" was the <a href="http://en.wikipedia.org/wiki/Time_Magazine" id="link-id144c52a8">Times</a> person of the year as an acknowledgement of the Web 2.0 phenomenon, and maybe this time next year it would simply be the "Magic of Being You" that's the person of the year :-)</p> <p>Web 3.0 brings databasing to the Web (as a feature). The single most important action item at this stage is the act of creating a record for yourself, in this new <a href="http://dbpedia.org/resource/federated_database_system" id="link-id11540b50">distributed database</a> held together by an HTTP based Network (e.g., the <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id115a02f8">World Wide Web</a>).</p> <h3>Related:</h3> <ol> <li> <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/GetAPersonalURIIn5MinutesOrLess" id="link-id113aead0">Get yourself a Web Database ID in 5 minutes or less</a> </li> <li> 2006 Callout from <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id118acdd8">TimBL</a>: <a href="http://dig.csail.mit.edu/breadcrumbs/node/71" id="link-id11126580">Get Yourself a URI</a> </li> <li> Just watch the <a href="http://www.youtube.com/watch?v=jBqByfoLGdU" id="link-id13d19568">Numerati Video</a> </li> </ol>
State of the Linked Data Web
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-10#1455
2008-10-10T02:27:44Z
2010-03-28T18:25:19-04:00
<p> The evolution of the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> into a <a href="http://dbpedia.org/resource/federated_database_system" id="link-id13d825f8">federated database</a>, <a href="http://dbpedia.org/resource/Information" id="link-id11821e18">information</a> space, and <a href="http://dbpedia.org/resource/Knowledge" id="link-id147f5d20">knowledge</a>-base hybrid continues at frenetic pace.</p> <p> As more <a href="http://dbpedia.org/resource/Linked_Data" id="link-id14a805a8">Linked Data</a> is injected into the Web from the <a href="http://community.linkeddata.org/dataspace/organization/lod#this" id="link-id114ebeb8">Linking Open Data community</a> and other initiatives, it's important to note that "Linked Data" is available in a variety of forms such as:</p> <ul> <li> <a href="http://dbpedia.org/resource/Data">Data</a> Model Definition oriented Linked Data (aka. Data Dictionary)</li> <li> Data Model Instance Data (aka. Instance Data)</li> <li> Linked Data oriented solutions that leverage the smart data substrate that Models and Instance Data meshes deliver.</li> </ul> <p> Note: The common glue across the different types of Linked Data remains the commitment to data object (<a href="http://dbpedia.org/resource/Entity" id="link-id1103afe8">entity</a>) identification and access via de-referencable URIs (aka. record / entity level data source names).</p> <p> As stated in my recent post titled: <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id11743278">Semantic Web</a>: <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1444" id="link-id10f44ce0">Travails to Harmony Illustrated</a>. Harmonious intersections of instance data, data dictionaries (schemas, ontologies, rules etc.) provide a powerful substrate (smart data) for the development and deployment of "People" and/or "Machine" oriented solutions. Of course, others have commented on these matters and expressed similar views (see related section below).</p> <p> The clickable venn diagram below, provides a simple exploration path that exposes the linkage that already exists, across the different Linked Data types, within the burgeoning <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1132fe60">Linked Data Web</a>.</p> <div> <map name="LiveCloud"> <area coords="356,136,120" href="http://umbel.org/images/lod_constellation.html" shape="circle" /> <area coords="140,136,120" href="http://www4.wiwiss.fu-berlin.de/bizer/pub/lod-datasets_2008-09-18.html" shape="circle" /> <area coords="248,280,120" href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/ClickableVirtSpongerCloud" shape="circle" /> </map> <img border="0" src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_people_schems_venn.png" usemap="#LiveCloud" /> </div> <h3> Related</h3> <ul> <li> <a href="http://jhingran.typepad.com/" id="link-id14aeb438">Anant Jingran</a>'s insightful <a href="http://intranet.usnet.private:8893/anant_jhingrans_musings/2008/08/future-of-database-research-is-excellent-but-what-is-the-future-of-data.html" id="link-id1158ca98">LDP Conference Trip report</a> </li> <li> Anant's recent post about the <a href="http://jhingran.typepad.com/anant_jhingrans_musings/2008/08/future-of-database-research-is-excellent-but-what-is-the-future-of-data.html" id="link-id1128fd78">future of Data</a> </li> <li> <a href="http://www.mkbergman.com/me/" id="link-id1114d330">Mike Bergman</a> - <a href="http://www.mkbergman.com/457/a-new-constellation-in-the-linking-open-data-lod-sky/" id="link-id114780f8">A New Constellation in the Linking Open Data (LOD) Sky</a> </li> <li> <a href="http://fgiasson.com/me/" id="link-id14aedaf0">Frederick Giasson</a> - <a href="http://fgiasson.com/blog/index.php/2008/09/04/exploding-dbpedias-domain-using-umbel" id="link-id12daa6d0">Exploding DBpedia Domain using UMBEL</a> </li> </ul>
Where Are All the RDF-based Semantic Web Applications?
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-10-01#1447
2008-10-01T23:09:00Z
2008-10-02T15:27:41-04:00
<p> In response to the "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id15971040">Semantic Web</a> Technology" application classification scheme espoused by <a href="http://www.readwriteweb.com" id="link-id16391540">ReadWriteWeb</a> (RWW), emphasized in the post titled: <a href="http://www.readwriteweb.com/archives/rdf_semantic_web_apps.php" id="link-id1157eaa0">Where are all the RDF-based Semantic Web Apps?</a>, here is my attempt to clarify and reintroduce what <a href="http://www.openlinksw.com/dataspace/organization/openlink#this" id="link-id15a43758">OpenLink Software</a> offers (today) in relation to Semantic Web technology. </p> <p> From the RWW Top-Down category, which I interpret as: technologies that produce RDF from non RDF <a href="http://dbpedia.org/resource/Data">data</a> sources. Our product portfolio is comprised of the following; <a href="http://virtuoso.openlinksw.com" id="link-id14f05818">Virtuoso Universal Server</a>, <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id162c8630">OpenLink Data Spaces</a>, <a href="http://oat.openlinksw.com" id="link-id134e1a00">OpenLink Ajax Toolkit</a>, and <a href="http://ode.openlinksw.com" id="link-id160b3bf8">OpenLink Data Explorer</a> (which includes ubiquity commands).</p> <h3>Virtuoso Universal Server functionality summary:</h3> <ol> <li>Generation of RDF <a href="http://dbpedia.org/resource/Linked_Data" id="link-id161d5f50">Linked Data</a> Views of <a href="http://dbpedia.org/resource/SQL" id="link-id161d5978">SQL</a>, XML, and <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> Services in general </li> <li>Deployment of RDF Linked Data </li> <li>"On the Fly" generation of RDF Linked Data from Document Web <a href="http://www.w3.org/TR/webarch/" id="link-id178bbc08">information resources</a> (i.e. distillation of entities from their containers e.g. Web pages) via Cartridges / Drivers</li> <li> <a href="http://dbpedia.org/resource/SPARQL" id="link-id162c2118">SPARQL</a> query language support </li> <li>SPARQL extensions that bring SPARQL closer to SQL e.g Aggregates, Update, Insert, Delete Named Graph support (i.e. use of logical names to partition RDF data within Virtuoso's multi-model dbms engine) </li> <li>Inference Engine (currently in use re. <a href="http://dbpedia.org/resource/DBpedia" id="link-id14f563c0">DBpedia</a> via Yago and <a href="http://umbel.org/about/" id="link-id113273b8">UMBEL</a>)</li> <li>Host and exposes data from <a href="http://dbpedia.org/resource/Drupal" id="link-id123d3bd8">Drupal</a>, <a href="http://dbpedia.org/resource/WordPress" id="link-id141adf40">Wordpress</a>, <a href="http://dbpedia.org/resource/MediaWiki" id="link-id1604b450">MediaWiki</a>, <a href="http://dbpedia.org/resource/PhpBB" id="link-id141013a8">phpBB3</a> as RDF Linked Data via in-built support for <a href="http://dbpedia.org/resource/PHP" id="link-id14661e58">PHP</a> runtime</li> <li> <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/ODSInstallationEC2" id="link-id146c84d0">Available as an EC2 AMI</a> </li> <li>etc..</li> </ol> <h3>OpenLink Data Spaces functionality summary:</h3> <ol> <li>Simple mechanism for Linked Data <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id15473770">Web</a> enabling yourself by giving you an <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/GetAPersonalURIIn5MinutesOrLess" id="link-id15f6d278">HTTP based User ID</a> (a de-referencable <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id15aaeb68">URI</a>) that is linked to a <a href="http://myopenlink.net/dataspace/person/kidehen" id="link-id15a7a840">FOAF based Profile page</a> and OpenID</li> <li>Binds all your data sources (blogs, wikis, bookmarks, photos, calendar items etc. ) to your URI so can "Find" things by only remembering your URI</li> <li>Makes your profile page and personal URI the focal point of Linked Data Web presence</li> <li>Delivers Data Portability (using data access by value or <a href="http://dbpedia.org/resource/Reference_(computer_science)" id="link-id16212838">data access by reference</a>) across data silos (e.g. Web 2.0 style social networks)</li> <li>Allows you make annotations about anything in your own <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id14668010">Data Space</a>(s) on the Web without exposure to RDF markup</li> <li>A Briefcase feature that provides a WebDAV driven RDF Linked Data variant of functionality seen in Mac OS X Spotlight and WinFS with the addition of SPARQL compliance</li> <li>Automatically generates <a href="http://dbpedia.org/resource/RDFa" id="link-id14691440">RDFa</a> in its (X)HTML pages</li> <li> <a href="http://dbpedia.org/resource/Blog" id="link-id14fae7b8">Blog</a>, Wiki, WebDAV File Server, Shared Bookmarks, Calendar, and other applications that look and feel like Web 2.0 counterparts but emitt RDF Linked Data amongst a plethora of data exchange formats</li> <li>Available as an EC2 AMI</li> <li>etc..</li> </ol> <h3>OpenLink Ajax Toolkit functionality summary:</h3> <ol> <li>Provides binding to SQL, RDF, XML, and Web Services via Ajax Database Connectivity Layer (you only need an <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id11550548">ODBC</a>, <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id13ae5f68">JDBC</a>, OLE-DB, <a href="http://dbpedia.org/resource/ADO.NET" id="link-id162803e8">ADO</a>.NET, XMLA Driver, or Web Service on the backend for dynamic data access from Javascript)</li> <li>All controls are Ajax Database Connectivity bound (widgets get their data from Ajax Database Connectivity data sources)</li> <li>Bundled with Virtuoso and <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id161dfe90">ODS</a> installations.</li> <li>etc.</li> </ol> <h3>OpenLink Data Explorer functionality summary</h3> <ol> <li>Distills entities associated with information resource style containers (e.g. Web Pages or files) as RDF Linked Data</li> <li>Exposes the RDF based <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id12a42ed8">Linked Data graph</a> associated with information resources (see the Linked Data behind Web pages)</li> <li>Ubiquity commands for invoking the above</li> <li>Available as a <a href="http://linkeddata.uriburner.com/ode" id="link-id15a0d2b0">Hosted Service</a> or <a href="http://ode.openlinksw.com" id="link-id138b9fa8">Firefox Extension</a> </li> <li>Bundled with Virtuoso and ODS installations</li> <li>etc.</li> </ol> <h3>Note:</h3> <p>Of course you could have simply looked up <a href="http://www.openlinksw.com/dataspace/organization/openlink" id="link-id14ef2c10">OpenLink Software's FOAF based Profile page</a> (*note the Linked Data Explorer tab*), or simply passed the <a href="http://dbpedia.org/resource/Friend_of_a_friend" id="link-id14cbf5c8">FOAF</a> profile page <a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id16453e28">URL</a> to a Linked Data aware client application such as: <a href="http://linkeddata.uriburner.com/ode" id="link-id15a80500">OpenLink Data Explorer</a>, <a href="http://zitgist.com/about/" id="link-id1586a360">Zitgist</a> <a href="http://dataviewer.zitgist.com" id="link-id16249f60">Data Viewer</a>, <a href="http://beckr.org/marbles" id="link-id15993fb0">Marbles</a>, and <a href="http://dig.csail.mit.edu/2005/ajar/release/tabulator/0.8/tab.html" id="link-id14d63048">Tabulator</a>, and obtained information. Remember, <a href="http://www.openlinksw.com/dataspace/organization/openlink#this" id="link-id138ba838">OpenLink Software</a> is an <a href="http://dbpedia.org/resource/Entity" id="link-id1173e120">Entity</a> of Type: <a href="http://xmlns.com/foaf/0.1/Organization" id="link-id138b87b8">foaf:Organization</a>, on the burgeoning Linked Data Web :-)</p> <h3>Related</h3> <ul> <li> <a href="http://virtuoso.openlinksw.com/presentations/Creating_Deploying_Exploiting_Linked_Data2/Creating_Deploying_Exploiting_Linked_Data2_TimBL_v3.html" id="link-id163a0c88">Linked Data Planet Keynote</a> (RDFa based remix edition)</li> <li> <a href="http://semanticbusiness.blogspot.com/2008/09/report-on-cusp-global-review-of.html" id="link-id11471a40">On The Cusp: A Global Review of the Semantic Web Industry.</a> </li> </ul>
Semantic Web: Travails to Harmony Illustrated (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-09-27#1444
2008-09-27T19:14:48Z
2008-09-28T15:18:53-04:00
<h3>All about <a href="http://dbpedia.org/resource/Data">Data</a> Dictionary issues</h3> <p>Over emphasis on <a href="http://dbpedia.org/resource/Data_dictionary" id="link-id10e99460"><a href="http://dbpedia.org/resource/Description_logic" id="link-id0xa2800c0">Description Logics</a></a> (RDFS, OWL, Inference & Reasoning etc) matters without any actual real-world instance <a href="http://dbpedia.org/resource/Data" id="link-id0x9d3a838">data</a> (e.g., lot's of reasoning over RDF in zip files or local drives).</p> <img alt="Image" src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_people_schems_venn2_missing_lod.png" /> <h3>All about Linking Openly accessible RDF Data Sets</h3> <p>Over emphasis on Instance Data without Data Dictionary appreciation and utilization (e.g., <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10ea0728">Linked Data</a> instance level linkage via "<a href="http://www.w3.org/TR/owl-ref/#sameAs-def" id="link-id10f2f650">owl:sameAs</a>"). </p> <img alt="Image" src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_people_schems_venn2_missing_dict.png" /> <h3>All about Applications & Frameworks</h3> <p>Here we are dealing with numerous applications and frameworks that inextricably bind Instance Data Management and Data Dictionaries. Basically, an all or nothing proposition, if you want to delve into the RDF <a href="http://dbpedia.org/resource/Linked_Data" id="link-id110b4970">Linked Data</a> solutions realm.</p> <img alt="Image" src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_people_schems_venn2_missing_modularity.png" /> <p>Often overlooked, is the fact that the <a href="http://dbpedia.org/resource/Linked_Data" id="link-ide398d40">Linked Data Web</a> - as an aspect of the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id19653440">Semantic Web</a> innovation continuum - is fundamentally about designing and constructing an "<a href="http://dbpedia.org/resource/Open_world_assumption" id="link-id19cac3a0">Open World</a>" compatible DBMS for the <a href="http://dbpedia.org/resource/Internet" id="link-id127fd198">Internet</a>. Thus, erstwhile "<a href="http://dbpedia.org/resource/Closed_world_assumption" id="link-id1252b338">Closed World</a>" DBMS components such as Data Dictionaries (handlers of Data Definition, Referential Integrity etc.) and actual Instance Data, are now distributed and loosely coupled. Thus, your data could be in one <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id12bf6338">Data Space</a> while the data dictionary resides in another. In actual fact, you could have several loosely bound data dictionaries that serve the specific Inference and Reasoning needs of a variety of applications, services, or agents. </p> <img alt="Image" src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_people_schems_venn2.png" />
The Linked Data Market via a BCG Matrix (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-09-25#1442
2008-09-25T20:42:49Z
2008-09-26T12:36:56-04:00
<p>The sweet spot of <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> 3.0 (or any other Web.vNext moniker) is all about providing Web Users with a structured and interlinked <a href="http://dbpedia.org/resource/Data">data</a> substrate that facilitates serendipitous discovery of relevant "Things" i.e., a <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10db3b48">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id170db618">Web</a> -- a Web of Linkable Entities that goes beyond documents and other <a href="http://dbpedia.org/resource/Information" id="link-id110a5d30">information</a> resource (data containers) types.</p> <p>Understanding potential <a href="http://dbpedia.org/resource/Linked_Data" id="link-id19e21c60">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id16d008d0">Web</a> business models, relative to other Web based market segments, is best pursued via a<a href="http://dbpedia.org/resource/BCG_diagram" id="link-id14734148"> BCG Matrix</a> diagram, such as the one I've constructed below:</p> <br /> <img src="http://virtuoso.openlinksw.com/ldp_presentation/images/linked_data_sdq_quadarant.png" /> <br /> <h3>Notes:</h3> <h4>Link Density</h4> <ul> <li>Web 1.0's collection of "Web Sites" have relatively low link density relative to Web 2.0's user-activity driven generation of semi-structured <a href="http://dbpedia.org/resource/Linked_Data" id="link-id14c302d8">linked data</a> spaces (e.g., Blogs, Wikis, Shared Bookmarks, RSS/Atom Feeds, Photo Galleries, Discussion Forums etc..)</li> <li>Semantic Technologies (i.e. "<strong>Semantics Inside</strong> style solutions") which are primarily about "Semantic Meaning" culled from Web 1.0 Pages also have limited linked density relative to Web 2.0</li> <li>The <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1286ab58">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-ide81ab20">Web</a>, courtesy of the open-ended linking capacity of URIs, matches and ultimately exceeds Web 2.0 link density.</li> </ul> <h4>Relevance</h4> <ul> <li>Web 1.0 and 2.0 are low relevance realms driven by hyperlinks to <a href="http://dbpedia.org/resource/Information" id="link-id173db890">information</a> resources ((X)HTML, RSS, Atom, OPML, XML, Images, Audio files etc.) associated with Literal Labels and Tagging schemes devoid of explicit property based resource description thereby making the pursuit of relevance mercurial at best</li> <li>Semantic Technologies offer more relevance than Web 1.0 and 2.0 based on the increased <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id124de510">context</a> that semantic analysis of Web pages accords</li> <li>The <a href="http://dbpedia.org/resource/Linked_Data" id="link-id111c4850">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id16e4e4c0">Web</a>, courtesy of URIs that expose self-describing data entities, match the relevance levels attained by Semantic Technologies.</li> </ul> <h4>Serendipity Quotient (SDQ)</h4> <ul> <li>Web 1.0 has next to no serendipity, the closest thing is <a href="http://google.com" id="link-id16dceec8">Google's "I'm Feeling Lucky" button</a> </li> <li>Web 2.0 possess higher potential for serendipitous discovery than Web 1.0, but such potential is neutralized by inherent subjectivity due to its human-interaction-focused literal foundation (e.g., tags, voting schemes, wiki editors etc.)</li> <li>Semantic Technologies produce islands-of-relevance with little scope for serendipitous discovery due to <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id18078e60">URI</a> invisibility, since the prime focus is delivering more <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id1253cc38">context</a> to Web search relative to traditional Web 1.0 search engines.</li> <li>The <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0x201d0ae8">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id10c7fb70">Web</a>'s use of URIs as the naming and resolution mechanism for exposing structured and interlinked resources provides the highest potential for serendipitous discovery of relevant "Things"</li> </ul> <p>To conclude, the <a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id0x23ebbf90">Web</a>'s market opportunities are all about the evolution of the Web into a powerful substrate that offers a unique intersection of "Link Density" and "Relevance", exploitable across horizontal and vertical market segments to solutions providers. Put differently, SDQ is how you take "The Ad" out of "Advertising" when matching Web users to relevant things :-)</p>
Web 1.0, 2.0, and 3.0 (Yet Again)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-09-15#1439
2008-09-15T17:33:44Z
2008-09-15T13:48:15-04:00
<p>If your <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> presence doesn't extend beyond (X)HTML web pages, you are only participating in Web usage Dimension 1.0.</p> <p>If your Web presence goes beyond (X)HTML pages, via the addition of REST or SOAP based Web Services, then you re participating in Web usage dimension 2.0.</p> <p>If you Web presence includes all of the above, with the addition of structured <a href="http://dbpedia.org/resource/Data">data</a> interlinked with structured data across other points of presence on the Web, then you are participating in Web usage dimension 3.0 i.e., "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id14d48d30">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id14d47280">Web</a>" or "Web of Data" or "Data Web".</p> <p>BTW - If you've already done all of the above, and you have started building intelligent agents that exploit the aforementioned structured interlinked data substrate, then you are already in Web usage dimension 4.0.</p> <h3>Related</h3> <ul>Prior posts about <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=web%20evolution&type=text&output=html" id="link-id10e8b978">Web usage pattern evolution</a> </ul>
The Trouble with Labels
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-09-12#1438
2008-09-12T01:47:05Z
2008-09-16T10:07:49.000015-04:00
<p>Unfortunately our fixation with "Labels" and the artificial link that exist between "Labels" and so-called "first mover advantage" continue to impede our progress to clarity about matters such as a fully functional <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> of interlinked <a href="http://dbpedia.org/resource/Data">data</a>.</p> <p> A while back I watched <a href="http://www.ted.com/index.php/talks/kevin_kelly_on_the_next_5_000_days_of_the_web.html" id="link-id14c2c740">Kevin Kelly's 5,000 days presentation at TED</a>. During the presentation, I kept on scratching my head, wondering why phrases like "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id0xb154550">Linked Data</a>", "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id0xb5927b8">Semantic Web</a>", "Web of Data", "Data Web" where so unnaturally disconnected from his session narrative.</p> <p>Yesterday I watched <a href="http://www.techcrunch50.com/2008/conference/presenter.php?presenter=63#video" id="link-id14f6e1a8">IMINDI's TechCrunch 50 presentation</a>, and once again I saw the aforementioned pattern repeat itself. This time around, the poor founders of this "<a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id0xae767f0">Web</a>" oriented company (which is what they are in reality) took a totally undeserved pasting from a bunch of panelist incapable of seeing beyond today (Web 2.0) and yesterday (initial Web bootstrap).</p> <p>Anyway, thanks to the Web, this post will make a small contribution towards re-connecting the missing phrases to these "Linked Data Web" presentations.</p>
Crunchbase & Semantic Web Interview (Remix - Update 1)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-08-27#1424
2008-08-27T18:16:37Z
2008-08-27T20:35:15-04:00
<p>After reading <a href="http://blog.crunchbase.com/2008/08/26/building-a-semantic-web-interview-with-benjamin-nowack/" id="link-id16b8e0e0">Bengee's interview with CrunchBase</a>, I decided to knock up a quick interview remix as part of my usual attempt to add to the developing discourse.</p> <blockquote> <cite><a href="http://www.crunchbase.com/" id="link-id17c8e7b8">CrunchBase</a>: When we released the <a href="http://www.crunchbase.com/help/api" id="link-id16681f68">CrunchBase API</a>, you were one of the first developers to step up and quickly released a <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com's%20BLOG%20%5B127%5D/1395" id="link-id1016d5f0">CrunchBase Sponger Cartridge</a>. Can you explain what a CrunchBase Sponger Cartridge is?</cite> </blockquote> <blockquote> <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id13243300">Me</a>: A Sponger Cartridge is a <a href="http://dbpedia.org/resource/Data">data</a> access driver for <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> Resources that plugs into our <a href="http://virtuoso.openlinksw.com" id="link-id17042f08">Virtuoso</a> <a href="http://dbpedia.org/resource/Virtuoso_Universal_Server" id="link-id1399b588">Universal Server</a> (DBMS and <a href="http://dbpedia.org/resource/Linked_Data" id="link-id137fd188">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id100b23d8">Web</a> Server combo amongst other things). It uses the internal structure of a resource and/or a web service associated with a resource, to materialize an RDF based <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id10418750">Linked Data graph</a> that essentially describes the resource via its properties (Attributes & Relationships). </blockquote> <br /> <img src="http://virtuoso.openlinksw.com/presentations/Creating_Deploying_Exploiting_Linked_Data2/images/ldp4.png" /> <br /> <br /> <br /> <blockquote> <cite>CrunchBase: And what inspired you to create it?</cite> </blockquote> <blockquote> <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id12fa60c0">Me</a>: Bengee built a new space with your data, and we've built a space on the fly from your data which still resides in your domain. Either solution extols the virtues of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id101a8d28">Linked Data</a> i.e. the ability to explore relationships across data items with high degrees of serendipity (also colloquially known as: following-your-nose pattern in <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id14a3ff30">Semantic Web</a> circles).</blockquote> <blockquote> <a href="http://cb.semsol.org/" id="link-id182a0170">Bengee</a> posted a notice to the <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData" id="link-id131e8d10">Linking Open Data Community</a>'s public <a href="http://lists.w3.org/Archives/Public/public-lod/2008Jul/0110.html" id="link-id11dd0720">mailing list announcing his effort</a>. Bearing in mind the fact that we've been using <a href="http://www.openlinksw.com/blog/~kidehen/?id=1144" id="link-id117cf6e8">middleware to mesh the realms of Web 2.0 and the Linked Data Web</a> for a while, it was a no-brainer to knock something up based on the conceptual similarities between <a href="http://wikicompany.org/wiki/Main_Page" id="link-id13b87a68">Wikicompany</a> and CrunchBase. In a sense, a quadrant of orthogonality is what immediately came to mind re. Wikicompany, CrunchBase, Bengee's RDFization efforts, and ours.</blockquote> <blockquote>Bengee created an RDF based <a href="http://dbpedia.org/resource/Linked_Data" id="link-id133c8fc8">Linked Data</a> warehouse based on the data exposed by your API, which is exposed via the <a href="http://cb.semsol.org/" id="link-id1826f928">Semantic CrunchBase</a> <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id102d8890">data space</a>. In our case we've taken the "RDFization on the fly" approach which produces a transient <a href="http://dbpedia.org/resource/Linked_Data" id="link-id16a0b8d0">Linked Data</a> View of the CrunchBase data exposed by your APIs. Our approach is in line with our world view: all resources on the Web are data sources, and the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1668e6c8">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id188e7da0">Web</a> is about incorporating HTTP into the naming scheme of these data sources so that the conventional <a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id13490710">URL</a> based hyperlinking mechanism can be used to access a structured description of a resource, which is then transmitted using a range negotiable representation formats. In addition, based on the fact that we house and publish a lot of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id169aa568">Linked Data</a> on the Web (e.g. <a href="http://dbpedia.org/resource/DBpedia" id="link-id10af10e8">DBpedia</a>, <a href="http://www.pingthesemanticweb.com/about/" id="link-id10a2b710">PingTheSemanticWeb</a>, and others), we've also automatically meshed Crunchbase data with related data in <a href="http://dbpedia.org/resource/DBpedia" id="link-id1403cd40">DBpedia</a> and Wikicompany data.</blockquote> <br /> <blockquote> <cite>CrunchBase: Do you know of any apps that are using CrunchBase Cartridge to enhance their functionality?</cite> </blockquote> <blockquote> <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id177d24c8">Me</a>: Yes, the <a href="http://ode.openlinksw.com" id="link-id10725ca0">OpenLink Data Explorer</a> which provides CrunchBase site visitors with the option to explore the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id17dedea8">Linked Data</a> in the CrunchBase <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id13f02a00">data space</a>. It also allows them to "Mesh" (rather than "Mash") CrunchBase data with other <a href="http://dbpedia.org/resource/Linked_Data" id="link-id11fb3ba0">Linked Data</a> sources on the Web without writing a single line of code. </blockquote> <br /> <blockquote> <cite>CrunchBase: You have been immersed in the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id12e18a00">Semantic Web</a> movement for a while now. How did you first get interested in the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id15132110">Semantic Web</a>?</cite> </blockquote> <blockquote> <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id0xddaa9c8">Me</a>: We saw the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id188b3330">Semantic Web</a> as a vehicle for standardizing conceptual views of heterogeneous data sources via <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id10350978">context</a> lenses (URIs). In 1998 as part of our strategy to expand our business beyond the development and deployment of <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id171d6798">ODBC</a>, <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id138120a0">JDBC</a>, and OLE-DB data providers, we decided to build a <a href="http://dbpedia.org/resource/Virtual_Database" id="link-id13ea6618">Virtual Database</a> Engine (see: <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSHistory" id="link-id11a4fa30">Virtuoso History</a>), and in doing so we sought a standards based mechanism for the conceptual output of the <a href="http://dbpedia.org/resource/Federated_database_system" id="link-id101a1248">data virtualization</a> effort. As of the time of the <a href="http://www.w3.org/DesignIssues/Semantic.html" id="link-id18882cf8">seminal unveiling of the Semantic Web in 1998</a> we were clear about two things, in relation to the effects of the Web and <a href="http://dbpedia.org/resource/Internet" id="link-id12fa2c58">Internet</a> data management infrastructure inflections: 1) Existing DBMS technology had reached it limits 2) Web Servers would ultimately hit their functional limits. These fundamental realities compelled us to develop <a href="http://virtuoso.openlinksw.com" id="link-id102b09a0">Virtuoso</a> with an eye to leveraging the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id11984d98">Semantic Web</a> as a vehicle from completing its technical roadmap.</blockquote> <br /> <blockquote> <cite>CrunchBase: Can you put into laymanâs terms exactly what RDF and <a href="http://dbpedia.org/resource/SPARQL" id="link-id1066dcf0">SPARQL</a> are and why they are important? Do they only matter for developers or will they extend past developers at some point and be used by website visitors as well?</cite> </blockquote> <blockquote>Me: RDF (Resource Description Framework) is a Graph based Data Model that facilitates resource description using the <a href="http://www.eslincanada.com/englishlesson2.html" id="link-id178b94a8">Subject, Predicate, and Object principle</a>. Associated with the core data model, as part of the overall framework, are a number of markup languages for expressing your descriptions (just as you express presentation markup semantics in HTML or document structure semantics in XML) that include: <a href="http://dbpedia.org/resource/RDFa" id="link-id188db0a8">RDFa</a> (simple extension of HTML markup for embedding descriptions of things in a page), N3 (a human friendly markup for describing resources), RDF/XML (a machine friendly markup for describing resources).</blockquote> <blockquote> <a href="http://dbpedia.org/resource/SPARQL" id="link-id188c2030">SPARQL</a> is the query language associated with the RDF Data Model, just as <a href="http://dbpedia.org/resource/SQL" id="link-id13f0ffe0">SQL</a> is a query language associated with the Relational Database Model. Thus, when you have RDF based structured and <a href="http://dbpedia.org/resource/Linked_Data" id="link-id166874d0">linked data</a> on the Web, you can query against Web using <a href="http://dbpedia.org/resource/SPARQL" id="link-id1016cc98">SPARQL</a> just as you would against an <a href="http://dbpedia.org/resource/Oracle_Database" id="link-id101c9708">Oracle</a>/<a href="http://dbpedia.org/resource/SQL" id="link-id11cb0b18">SQL</a> Server/<a href="http://dbpedia.org/resource/IBM_DB2" id="link-id10760ec0">DB2</a>/<a href="http://dbpedia.org/resource/IBM_Informix" id="link-id1066c8c0">Informix</a>/<a href="http://dbpedia.org/resource/Ingres" id="link-id18894f40">Ingres</a>/<a href="http://dbpedia.org/resource/MySQL" id="link-iddc9ebb0">MySQL</a>/etc.. DBMS using <a href="http://dbpedia.org/resource/SQL" id="link-id1030d120">SQL</a>. That's it in a nutshell.</blockquote> <br /> <blockquote> <cite>CrunchBase: On your website you wrote that âRDF and <a href="http://dbpedia.org/resource/SPARQL" id="link-id168e9ad0">SPARQL</a> as productivity boosters in everyday web developmentâ. Can you elaborate on why you believe that to be true?</cite> </blockquote> <blockquote>Me: I think the ability to discern a formal description of anything via its discrete properties is of immense value re. productivity, especially when the capability in question results in a graph of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0x179f6328">Linked Data</a> that isn't confined to a specific host operating system, database engine, application or service, programming language, or development framework. RDF <a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> is about infrastructure for the true materialization of the "<a href="http://dbpedia.org/resource/Information" id="link-id13e475b8">Information</a> at Your Fingertips" vision of yore. Even though it's taken the emergence of RDF Linked Data to make the aforementioned vision tractable, the comprehension of the vision's intrinsic value have been clear for a very long time. Most organizations and/or individuals are quite familiar with the adage: <a href="http://dbpedia.org/resource/Knowledge" id="link-id13e38a30">Knowledge</a> is Power, well there isn't any <a href="http://dbpedia.org/resource/Knowledge" id="link-id188b7348">knowledge</a> without accessible <a href="http://dbpedia.org/resource/Information" id="link-id140415d0">Information</a>, and there isn't any accessible <a href="http://dbpedia.org/resource/Information" id="link-id11a976e8">Information</a> without accessible Data. The Web has always be grounded in accessibility to data (albeit via compound container documents called Web Pages).</blockquote> <blockquote>Bottom line, RDF based Linked Data is about Open <a href="http://dbpedia.org/resource/Reference_(computer_science)" id="link-id1206bfb8">Data access by reference</a> using URIs (HTTP based <a href="http://dbpedia.org/resource/Entity" id="link-idfaa6ce0">Entity</a> IDs / Data Object IDs / Data Source Names), and as I said earlier, the intrinsic value is pretty obvious bearing in mind the costs associated with integrating disparate and heterogeneous data sources -- across intranets, extranets, and the <a href="http://dbpedia.org/resource/Internet" id="link-id188ecc68">Internet</a>.</blockquote> <br /> <blockquote> <cite>CrunchBase: In his definition of Web 3.0, Nova Spivack proposes that the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id12e2d968">Semantic Web</a>, or Semanti<a href="http://dbpedia.org/resource/C_(programming_language)" id="link-id105744c0">c</a> Web technologies, will be force behind much of the innovation that will occur during Web 3.0. Do you agree with Nova Spivack? What role, if any, do you feel the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id13fa4218">Semantic Web</a> will play in Web 3.0?</cite> </blockquote> <blockquote>Me: I agree with Nova. But I see Web 3.0 as a phase within the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id188c9000">Semantic Web</a> innovation continuum. Web 3.0 exists because Web 2.0 exists. Both of these Web versions express usage and technology focus patterns. Web 2.0 is about the use of Open Source technologies to fashion Web Services that are ultimately used to drive proprietary Software as Service (SaaS) style solutions. Web 3.0 is about the use of "Smart Data Access" to fashion a new generation of Linked Data aware Web Services and solutions that exploit the federated nature of the Web to maximum effect; proprietary branding will simply be conveyed via quality of data (cleanliness, <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id188d2ef8">context</a> fidelity, and comprehension of privacy) exposed by URIs.</blockquote> <p>Here are some examples of the CrunchBase Linked Data <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id122756f8">Space</a>, as projected via our CruncBase Sponger Cartridge:</p> <ol> <li> <a href="http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fwww.crunchbase.com%2Fcompany%2Famazon" id="link-id13e0fd18">Amazon.com</a> </li> <li> <a href="http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fwww.crunchbase.com%2Fcompany%2Fmicrosoft" id="link-id13eef9e0">Microsoft</a> </li> <li> <a href="http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fwww.crunchbase.com%2Fcompany%2Fgoogle" id="link-id13fe47a0">Google</a> </li> <li> <a href="http://demo.openlinksw.com/rdfbrowser2/?uri=http%3A%2F%2Fwww.crunchbase.com%2Fcompany%2Fapple" id="link-id170c73b8">Apple</a> </li> </ol>
The Future of the Desktop
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-08-21#1415
2008-08-21T15:26:18Z
2008-08-21T15:59:25.000001-04:00
<p> <a href="http://www.jasonkolb.com/" id="link-id13ba6d90">Jason Kolb</a> (who <a href="http://www.jasonkolb.com/weblog/2008/08/the-future-of-t.html" id="link-id1524e210">initially</a> nudged me to chime in), and then <a href="http://www.readwriteweb.com/archives/future_of_the_desktop.php" id="link-id13a182c0">ReadWriteWeb</a>, and of course <a href="http://www.twine.com/item/11bshgkbr-1k5/the-future-of-the-desktop" id="link-id13f1e1f0">Nova's Twine about the topic</a>, have collectively started an interesting discussion about <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a>.vNext (3.0 and beyond) under the heading: The Future of the Desktop.</p> <p>My contribution to the developing discourse takes the form of a Q&A session. I've taken the questions posed and provided answers that express my particular points of view: </p> <blockquote> <cite>Q: Is the desktop of the future going to just be a web-hosted version of the same old-fashioned desktop metaphors we have today?</cite> </blockquote> <blockquote>A: No, it's going to be a more <a href="http://www.w3.org/TR/webarch/" id="link-id1524d4a0">Web Architecture</a> aware and compliant variant exposed by appropriate metaphors.</blockquote> <br /> <blockquote> <cite>Q: The desktop of the future is going to be a hosted web service</cite> </blockquote> <blockquote>A: A vessel for exploiting the virtues of the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10827ad0">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id155bc698">Web</a>.</blockquote> <br /> <blockquote> <cite>Q: The Browser is Going to Swallow Up the Desktop</cite> </blockquote> <blockquote>A: Literally, of course not! Metaphorically, of course! And then the Browser metaphor will decomposes into function specific bits of Web interaction amenable to orchestration by its users.</blockquote> <br /> <blockquote> <cite>Q: The focus of the desktop will shift from <a href="http://dbpedia.org/resource/Information" id="link-id1667e2e0">information</a> to attention</cite> </blockquote> <blockquote>A: No! <a href="http://dbpedia.org/resource/Knowledge" id="link-id104bb9c8">Knowledge</a>, <a href="http://dbpedia.org/resource/Information" id="link-id1524dd48">Information</a>, and <a href="http://dbpedia.org/resource/Data">Data</a> sharing courtesy of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10723640">Hyperdata</a> & Hypertext Linking.</blockquote> <br /> <blockquote> <cite>Q: Users are going to shift from acting as librarians to acting as daytraders</cite> </blockquote> <blockquote>A: They were Librarians at Web 1.0, Journalist at Web 2.0, and Analysts in Web 3.0 (i.e, analyze structured and interlinked data), and CEOs in Web 4.0 (i.e. get Agents to do stuff intelligently en route to making decisions).</blockquote> <blockquote> <br /> <cite>Q: The Webtop will be more social and will leverage and integrate collective intelligence</cite> </blockquote> <blockquote>A: The <a href="http://dbpedia.org/resource/Linked_Data" id="link-id13a01ed0">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id106343a8">Web</a> vessel will only require you to fill in your profile (once) and then serendipitous discovery and meshing of relevant data will simply happen (the serendipity quotient will grow in line with <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10560050">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id100f4940">Web</a> density).</blockquote> <br /> <blockquote> <cite>Q: The desktop of the future is going to have powerful semantic search and social search capabilities built-in</cite> </blockquote> <blockquote>A: It is going to be able to "Find" rather than "Search" for stuff courtesy of the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10a18a70">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id10a976f0">Web</a>.</blockquote> <br /> <blockquote> <cite> Q: Interactive shared spaces will replace folders</cite> </blockquote> <blockquote>A: Data Spaces and their URIs (Data Source Names) replace everything. You simply choose the exploration metaphor that best suits you space interaction needs.</blockquote> <br /> <blockquote> <cite>Q: The Portable Desktop</cite> </blockquote> <blockquote>A: Ubiquitous Desktop i.e. do the same thing (all answers above) on any device connected to the Web.</blockquote> <br /> <blockquote> <cite>Q: The Smart Desktop</cite> </blockquote> <blockquote>A: Vessels with access to Smart Data (<a href="http://dbpedia.org/resource/Linked_Data" id="link-id1666e4e8">Linked Data</a> + Action driven <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id171d1ff0">Context</a> sprinklings).</blockquote> <br /> <blockquote> <cite>Q: Federated, open policies and permissions</cite> </blockquote> <blockquote>A: More federation for sure, XMPP will become a lot more important, and OAuth will enable resurgence of the federated aspects of the Web and <a href="http://dbpedia.org/resource/Internet" id="link-id100a66a8">Internet</a>.</blockquote> <br /> <blockquote> <cite>Q: The personal cloud</cite> </blockquote> <blockquote>A: <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id104ba580">Personal Data Spaces</a> plugged into Clouds (<a href="http://dbpedia.org/resource/Intranet" id="link-id15bbb970">Intranet</a>, <a href="http://dbpedia.org/resource/Extranet" id="link-id1026d6b0">Extranet</a>, <a href="http://dbpedia.org/resource/Internet" id="link-id140508c8">Internet</a>).</blockquote> <br /> <blockquote> <cite>Q: The WebOS</cite> </blockquote> <blockquote>A: An operating system endowed with traditional Database and Host Operating system functionality such as: RDF Data Model, <a href="http://dbpedia.org/resource/SPARQL" id="link-idd86f48">SPARQL</a> Query Language, <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id13f47268">URI</a> based <a href="http://en.wikipedia.org/wiki/Pointer" id="link-id1055bc78">Pointer mechanism</a>, and HTTP based message Bus.</blockquote> <br /> <blockquote> <cite>Q: Who is most likely to own the future desktop?</cite> </blockquote> <blockquote>A: You! And all you need is a <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id106b79e8">URI</a> (an ID or Data Source Name for "<a href="http://dbpedia.org/resource/Entity" id="link-id133c88a0">Entity</a> You") and a Profile Page (a place where "<a href="http://dbpedia.org/resource/Entity" id="link-id15fa8060">Entity</a> You" is Describe by You).</blockquote> <h3>One Last Thing</h3> <p>You can get a feel for the future desktop by <a href="http://ode.openlinksw.com/#Download" id="link-id165ec048">downloading</a> and then installing the <a href="http://ode.openlinksw.com/" id="link-id13baba38">OpenLink Data Explorer</a> plugin for Firefox, which allows you to switch viewing modes between Web Page and <a href="http://dbpedia.org/resource/Linked_Data" id="link-id13f12410">Linked Data</a> behind the page. :-)</p> <h3>Related</h3> <ul> <li> <a href="http://en.wikipedia.org/wiki/OpenLink_Data_Spaces" id="link-id12496e48">OpenLink Data Spaces</a> </li> <li> <a href="http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/GetAPersonalURIIn5MinutesOrLess" id="link-id1027f060">Get Yourself a URI in 5 Minutes or Less</a> </li> <li> <a href="http://virtuoso.openlinksw.com/presentations/DataPortability_and_DataSpaces/DataPortability_and_DataSpaces.html" id="link-id10890f70">Linked Data Spaces & Data Portability</a> </li> <li> <a href="http://virtuoso.openlinksw.com/presentations/Creating_Deploying_Exploiting_Linked_Data2/Creating_Deploying_Exploiting_Linked_Data2_TimBL_v3.html" id="link-id137efdf8">Linked Data Conference Keynote</a> (<a href="http://dbpedia.org/resource/RDFa" id="link-id1239d300">RDFa</a> based remix edition that includes vital bits from <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id1317a048">TimBL</a>'s <a href="http://www.linkeddataplanet.com/" id="link-id165f57c8">Linked Data Planet presentation</a>).</li> </ul>
What do people have against URLs or URIs? (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-06-22#1388
2008-06-22T22:36:14Z
2008-06-23T09:37:57.000003-04:00
<p>Stumbled across a nice post titled: <a href="http://derivadow.com/2008/06/22/what-do-people-have-against-urls" id="link-id10c035c8">What do people have against URLs</a>?. My answer: Everything, if they don't understand the inherent power of URLs when incorporated into the "<a href="http://dbpedia.org/resource/Data">Data</a> Source Naming" mechanism of the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> called: URIs :-)</p> <p>URIs are simple to use i.e you simply click on them via a user agents UI. However, URLs when incorporated into Data Source Naming en route to constructing HTTP based Identifiers, that deliver HTTP based pointers to the location / address of a Resource Descriptions, another matter.</p> <p>I touched on this issue in my <a href="http://virtuoso.openlinksw.com/presentations/Creating_Deploying_Exploiting_Linked_Data2/Creating_Deploying_Exploiting_Linked_Data2.html" id="link-id1076e998">Linked Data Planet keynote</a> last week, and I must say, it did set off a light.</p> <p>I believe, we can only get the broader Web community to comprehend the utility of URIs (Web Data Source Names) by exposing said utility via the Web's Universal Client (Web Browser). For instance, how do URN based Identity / Naming schemes help in a world dominated by Web Browsers that only grok "http://"? From my vantage point, the practical solution is for data providers who already have "doi", "lsid" and other Handle based Identifiers in place, to embark upon http-to-native-naming-scheme-proxying.</p> <p>In my usual "dog-fooding" and "practice what you preach" fashion, this is exactly what we do in the new <a href="http://myopenlink.net:8890/~kidehen/Public/rdfb.xpi" id="link-id13038bb0">Linked Data Web extension</a> that we've decided to reveal to the public (albeit late beta). Thus, when you use an existing browser to view pages with "lsid" or "doi" URNs, you still enjoy the utility of getting at the "Raw <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1090f2a0">Linked Data</a> Sources" that these names expose.</p>
Linked Data in Action: Library of Congress
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-06-11#1384
2008-06-11T16:36:40Z
2008-06-11T13:16:31.000010-04:00
<p>As I start my countdown to the upcoming <a href="http://www.linkeddataplanet.com" id="link-id106a81b8">Linked Data Planet conference</a>, here is the first of a series of posts geared towards showcasing practical use of the burgeoning <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id109470d0">Linked Data Web</a>.</p> <p>First up, the Library of Congress, take a look at the following pages which are "Human" and machine based "User Agent" friendly:</p> <ul> <li> <a href="http://lcsh.info/sh85118553#concept" id="link-id102927f8">Science</a> </li> <li> <a href="http://lcsh.info/sh85062913#concept" id="link-id10f13820">Humanities</a> </li> <li> <a href="http://lcsh.info/sh85082139#concept" id="link-id10ca5c58">Mathematics</a> </li> <li> <a href="http://lcsh.info/sh85020816#concept" id="link-id1230aef8">Cataloging</a> </li> <li> <a href="http://lcsh.info/sh95000541#concept" id="link-id1110e140">World Wide Web</a> </li> </ul> <p>Key point: The pages above are served up in line with <a href="http://dbpedia.org/resource/Linked_Data" id="link-id102f96a8">Linked Data</a> deployment and publishing tenets espoused by the <a href="http://community.linkeddata.org/dataspace/organization/lod#this" id="link-id10685ed8">Linking Open Data Community</a> (<a href="http://community.linkeddata.org/dataspace/organization/lod#this" id="link-id103915b0">LOD</a>) which include (in my preferred terminology):</p> <ul> <li>Giving "Names" to things you observe (aka <a href="http://dbpedia.org/resource/Data">Data</a> Source Names or "DSNs" for short)</li> <li>Use HTTP URLs in your data source naming scheme so that "access by reference" to your data sources exploits the expanse of the HTTP driven <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> i.e make your DSNs "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id1071cb88">Linked Data Source Names</a>" (LDNS)</li> <li>Remember that Documents / Pages are compound in nature, and they aren't the only data sources we would want to name; a document's LDSN must be distinct from the LDSNs used for the <a href="http://dbpedia.org/resource/Topic" id="link-id10c020d0">subject matter concepts</a> and/or <a href="http://dbpedia.org/resource/Named_entity_recognition" id="link-ide7a0a58">named entities</a> associated with a document </li> <li> Use the RDF Data Model to express structure within your data source(s)</li> <li>Use LDSNs when constructing statements/claims/assertions/records (triples) inside your structured data sources</li> <li> When publishing Web Pages related to your data sources; use at least one of the following to methods to guide user agents to data sources associated with your published page; the HTML <a href="http://blogs.usnet.private:8893/RPC2" id="link-id12326c48">LINK tag</a>, <a href="http://dbpedia.org/resource/RDFa" id="link-id10751788">RDFa</a>, <a href="http://dbpedia.org/resource/GRDDL" id="link-id1050e290">GRDDL</a>, or <a href="http://dbpedia.org/resource/Content_negotiation" id="link-id12e930b0">Content Negotiation</a>. </li> </ul> <p>The items above are features that users and decision makers should start to hone into when seeking, and evaluating, platforms that facilitate cost-effective exploitation of the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0x9dde928">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id0x18c3b1c0">Web</a>.</p>
1995
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-06-04#1371
2008-06-04T21:05:17Z
2008-06-06T07:54:33.000010-04:00
<p> <a href="http://vanirsystems.com/danielsblog/2008/06/04/1995/#comments" id="link-id10422580">1995</a>: "</p> <p>1995 (and the early 90’s) must have been a visionaries time of dreaming… most of their dreams are happening today.</p> <p>Watch <a href="http://dbpedia.org/resource/Steve_Jobs" id="link-id102d3868">Steve Jobs</a> (then of <a href="http://dbpedia.org/resource/NeXT" id="link-id13fa5140">NeXT</a>) discuss what he thinks will be popular in 1996 and beyond at <a href="http://dbpedia.org/resource/OpenStep" id="link-id10df20e0">OpenStep</a> Days 1995:</p> <ul> <li> <a href="http://uk.youtube.com/watch?v=odqojmB6C_Y" id="link-id103534a0">‘The Future of Objects, 3/5″ by Steve Jobs (YouTube Video)</a> </li> <li> <a href="http://uk.youtube.com/watch?v=j7WpcRReDlo" id="link-id13f31910">‘The Future of Objects, 4/5″ by Steve Jobs (YouTube Video)</a> </li> </ul> <p>Heres a spoiler:</p> <ul> <li>There is static <a href="http://dbpedia.org/resource/World_Wide_Web">web</a> document publishing</li> <li>There is dynamic web document publishing</li> <li>People will want to buy things off the web: e-commerce</li> </ul> <p>The thing that OpenStep propose is:</p> <ul> <li> <a href="http://dbpedia.org/resource/WebObjects" id="link-id10762ed8">WebObjects</a>: an <a href="http://dbpedia.org/resource/Object-oriented_programming" id="link-id1107f680">Object Oriented</a> representation of <a href="http://dbpedia.org/resource/Data">Data</a> available in distributed form over the web</li> </ul> <p>What Steve was suggesting was one of the beginnings of the <a href="http://dbpedia.org/resource/Data_Web" id="link-id1047b568">Data Web</a>! Yep, <a href="http://dbpedia.org/resource/Portable_Distributed_Objects" id="link-id105c5330">Portable Distributed Objects</a> and <a href="http://dbpedia.org/resource/Enterprise_Objects_Framework" id="link-id1006c850">Enterprise Objects Framework</a> was one of the influences of the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id143cf598">Semantic Web</a> / <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1075c898">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id0x1e9ade30">Web</a>…. not surprising as <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id10b56c80">Tim Berners-Lee</a> designed the initial web stack on a <a href="http://dbpedia.org/resource/NeXT" id="link-id105edcb0">NeXT</a> computer!</p> <p>I’m going to spend a little time this evening figuring out how much ‘distributed objects’ stuff has been taken from the OpenStep stuff into the Objective-<a href="http://dbpedia.org/resource/C_(programming_language)" id="link-id0x19fe21b8">C</a> + Cocoa environment. (<- I guess I must be quite geeky ;-))</p>" <p>(Via <a href="http://vanirsystems.com/danielsblog" id="link-id1092ed90">Daniel Lewis</a>.)</p>
Context, Tagging, Semantic Web, and Linked Data (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-05-22#1366
2008-05-22T17:23:02Z
2008-05-27T18:36:37-04:00
<p>Courtesy of <a href="http://novaspivack.typepad.com/about.html" id="link-id101d8750">Nova Spivack</a>'s post titled: <a href="http://feeds.feedburner.com/~r/typepad/MindingThePlanet/~3/295624567/tagging-and-the.html" id="link-id11067248">Tagging and the Semantic Web: Tags as Objects</a>, I stumbled across a related post by <a href="http://www.designmills.com/" id="link-idffb9a38">John Clarke</a> titled: <a href="http://feeds.feedburner.com/~r/DesignMills/~3/294554634/" id="link-id101d6138">Tagging and the Semantic Web</a>. Both of these posts use the common practice of tagging to shed light on the increasing realization that "<a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id11011f98"><a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1356" id="link-id1003f248">The Pursuit of Context</a></a>" is the fusion point between the current <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> and its evolution into a structured Web of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id101d6788">Linked Data</a>.</p> <h3>How Semantic Tagging Works (from a 1000 feet)</h3> <p>When tagging a document, the semantic tagging service passes the content of a target document through a processing pipeline (a distillation process of sorts) that results in automagic extraction of the following:</p> <ul> -- <a href="http://dbpedia.org/resource/Named_entity_recognition" id="link-id1015fdd0">Named Entities</a> </ul> <ul>-- <a href="http://dbpedia.org/resource/Topic" id="link-id100ccff8">Subject matter Entities</a> (<a href="http://dbpedia.org/resource/Topic" id="link-idfe9a898">Subject matter Concepts</a> reflecting topics covered by the document</ul> <p>Once the extraction phase is completed, a user is presented with a list of "suggested tags" using a variety of user interaction techniques. The literal values of elected Tags are then associated with one or more <a href="http://dbpedia.org/resource/Tag" id="link-idfed5eb0">Tag</a> and <a href="http://dbpedia.org/resource/Tag" id="link-id101ae0c8">Tag</a> Meaning <a href="http://dbpedia.org/resource/Data">Data</a> Objects, with each Object type endowed with a unique Identifier.</p> <h3>Issues to Note</h3> <p>Broad acceptance that: "<a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id100b9010">Context</a> is king", is gradually taking shape. That said, "<a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id101d2670">Context</a>" landlocked within Literal values offers little over what we have right now (e.g. at <a href="http://del.icio.us" id="link-id1004be08">Del.icio.us</a> or <a href="http://www.technorati.com" id="link-id100421c8">Technorati</a>), long term. By this I mean: if the end product of semantically enhanced tagging leaves us with: Literal <a href="http://dbpedia.org/resource/Tag" id="link-id101e5730">Tag</a> values only, Tags associated with <a href="http://dbpedia.org/resource/Tag" id="link-id1004a890">Tag</a> Data Objects endowed with platform specific Identifiers, or <a href="http://dbpedia.org/resource/Tag" id="link-id100364f8">Tag</a> Data Objects with any other Identity scheme that excludes <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id101e6630">HTTP</a>, the ability of Web users to discern or derive multiple perspectives from the base <a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id10180868">Context</a> (exposed by semantically enhanced Tags) will be lost, or severely impeded at best.</p> <p>The shape, form, and quality of the lookup substrate that underlies semantic tagging services, ultimately affects "<a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id10160f28">context</a> fidelity" matters such as <a href="http://dbpedia.org/resource/Entity" id="link-id100f2618">Entity</a> Disambiguation. The importance of quality lookup infrastructure on the burgeoning <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id10044b10">Linked Data Web</a> is the reason why <a href="http://www.openlinksw.com/dataspace/organization/openlink#this" id="link-id10102360">OpenLink Software</a> is intimately involved with the <a href="http://dbpedia.org/resource/DBpedia" id="link-id110760f8">DBpedia</a> and <a href="http://umbel.org/about/" id="link-id1015fc68">UMBEL</a> projects. </p> <h3>Conclusions</h3> <p>I am immensely happy to see that the Web 2.0 and <a href="http://dbpedia.org/resource/Semantic_Web" id="link-idffb8ca8">Semantic Web</a> communities are beginning to coalesce around the issue of "<a href="http://dbpedia.org/resource/Context_%28language_use%29" id="link-id101656b0">Context</a>". This was the case at the <a href="http://events.linkeddata.org/ldow2008/" id="link-id1017b878">WWW2008 Linked Data Workshop</a>, I am feeling a similar vibe emerging from the <a href="http://www.semantic-conference.com/" id="link-idffb9978">Semantic Web Technologies</a> conference currently nearing completion in San Jose. Of course, I will be talking about, and demonstrating practical utility of all of this, at the upcoming <a href="http://www.linkeddataplanet.com" id="link-id10042168">Linked Data Planet</a> conference.</p> <h3>Related</h3> <ul> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/tagcloud" id="link-id147a1848">My Data Space Tag Cloud</a> (*a <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0x24756e98">Linked Data</a> <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id0x24c2bd20">Space</a>*) </ul> <ul> <a href="http://www.faviki.com/" id="link-id101ac668">Faviki</a> (note: this service needs to expose <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1042cdc0">Linked Data</a> compliant <a href="http://dbpedia.org/resource/Tag" id="link-id1038c2e0">Tag</a> URIs) </ul> <ul> <a href="http://moat-project.org/ontology" id="link-id10199770">MOAT Ontology</a> </ul>
ODBC & WODBC Comparison
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-05-20#1364
2008-05-20T19:37:53Z
2008-05-20T15:46:11-04:00
<p> <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id100eb550">ODBC</a> delivers open <a href="http://dbpedia.org/resource/Data" id="link-idffd2338">data</a> access (by reference) to a broad range of enterprise databases via a '<a href="http://dbpedia.org/resource/C_(programming_language)" id="link-id104fd1d8">C</a>' based API. Thanks to the <a href="http://www.iodbc.org" id="link-id104721b0">iODBC</a> and <a href="http://www.unixodbc.org" id="link-id10954990">unixODBC</a> projects, <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id10494670">ODBC</a> is available across broad range of platforms beyond Windows.</p> <p> <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id0xc900928">ODBC</a> identifies <a href="http://dbpedia.org/resource/Data" id="link-id10f82200">data</a> sources using <a href="http://dbpedia.org/resource/Data" id="link-id0xcaad080">Data</a> Source Names (DSNs). </p> <p> WODBC (<a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> Open Database Connectivity) delivers open <a href="http://dbpedia.org/resource/Data">data</a> access to Web Databases / Data Spaces. The Data Source Naming scheme: <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id1009ce40">URI</a> or IRI, is <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id101fc1b0">HTTP</a> based thereby enabling data access by reference via the Web. </p> <p><a href="http://dbpedia.org/resource/Open_Database_Connectivity">ODBC</a> DSNs bind ODBC client applications to Tables, Views, Stored Procedures. </p> <p>WODBC DSNs bind you to a Data <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id10182a88">Space</a> (e.g. my <a href="http://myopenlink.net/dataspace/person/kidehen" id="link-id105a7858">FOAF based Profile Page</a> where you can use the "Explore Data Tab" to look around if you are a human visitor) or a specific <a href="http://dbpedia.org/resource/Entity" id="link-id10bd8578">Entity</a> within a Data <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id10780dc0">Space</a> (i.e <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id10848e08">Person Entity Me</a>).</p> <p>ODBC Drivers are built using APIs (DBMS Call Level Interfaces) provided by DBMS vendors. Thus, a DBMS vendor can chose not to release an API, or do so selectivity, for competitive advantage or market disruption purposes (it's happened!).</p> <p>WODBC Drivers are also built using APIs (Web Services associated with a Web Data <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id0xcbe6348">Space</a>). These drivers are also referred to as <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=rdf%20middleware&type=text&output=html" id="link-id16564058">RDF Middleware</a> or RDFizers. The "Web" component of WODBC ensures openness, you publish Data with URIs from your <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1064a768">Linked Data</a> Server and that's it; your data <a href="http://en.wikipedia.org/wiki/Data_Spaces">space</a> or specific data entities are live and accessible (by reference) over the Web!</p> <p>So we have come full circle (or cycle), the Web is becoming more of a structured database everyday! What's new is old, and what's old is new! </p> <p>Data Access is everything, without "Data" there is no <a href="http://dbpedia.org/resource/Information" id="link-id100a9de8">information</a> or <a href="http://dbpedia.org/resource/Knowledge" id="link-id10bb67e8">knowledge</a>. Without "Data" there's not notion of vitality, purpose, or value.</p> <p>URIs make or break everything in the <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10a71638">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id10494400">Web</a> just as ODBC DSNs do within the enterprise. </p> <p>I've deliberately left <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id10a05280">JDBC</a>, <a href="http://dbpedia.org/resource/ADO.NET" id="link-id104e4a70">ADO</a>.<a href="http://dbpedia.org/resource/ADO.NET" id="link-id10215668">NET</a>, and OLE-DB out of this piece due to their respective programming languages and frameworks specificity. None of these mechanisms match the platform availability breadth of ODBC.</p> <p>The Web as a true <a href="http://dbpedia.org/resource/Model-view-controller" id="link-id108ee598">M</a>-<a href="http://dbpedia.org/resource/Model-view-controller" id="link-id0xcda5e90">V</a>-C pattern is now crystalizing. The "M" (Model) component of M-V-C is finally rising to the realm of broad attention courtesy of the "<a href="http://www.w3.org/DesignIssues/LinkedData.html" id="link-id1024ff08">Linked Data" meme</a> and "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id1831b418">Semantic Web</a>" vision.</p> <p>By the way, M-V-C lines up nicely with Web 1.0 (Web Forms / Pages), Web 2.0 (Web Services based APIs), and Web 3.0 (Data Web, Web of Data, or <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0xb6d0e90">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id0xb22a158">Web</a>) :-)</p>
On "Semantic", "Semantic Web", and "Linked Data Web"
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-05-15#1360
2008-05-15T14:11:13Z
2008-05-15T14:31:38.000004-04:00
<p> <a href="http://novaspivack.typepad.com/" id="link-id102f4e00">Nova Spivack</a> has just penned a post titled: <a href="http://novaspivack.typepad.com/nova_spivacks_weblog/2008/05/on-the-differen.html" id="link-id101a2300">On the Difference Between "Semantic" and "Semantic Web</a>", where he covers the fundamental difference between "Semantic" (what I call "Semantics Inside") and "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id11dd0578">Semantic Web</a>" applications. I would like to extend the distinctions further by adding the "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id10b54ca0">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id106f73d0">Web</a>" distinctions to the developing discourse. </p> <p>The <a href="http://dbpedia.org/resource/Linked_Data" id="link-id1089ff48">Linked Data Web</a> (aka. <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10653828">Linked Data</a>) describes <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id134abfb0">RDF</a> <a href="http://dbpedia.org/resource/Data" id="link-id140283a8">data</a> injected into the Web, where the <a href="http://dbpedia.org/resource/Identity_(object-oriented_programming)" id="link-id1029ebf0">Data Object Identifiers</a> (URIs) in an <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id1011b180">RDF</a> graph (collection of <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id103a4960">RDF</a> triples) are endowed with <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id104362d8">HTTP</a> based URIs. The net effect of this approach to <a href="http://dbpedia.org/resource/Data" id="link-id107963a0">Data</a> Object Identity is that it facilitates "Open <a href="http://dbpedia.org/resource/Data" id="link-id1331f640">Data</a> Access by Reference" on the Web (aka <a href="http://dbpedia.org/resource/Data" id="link-id10a3c608">data</a> dereferencing).</p> <p>If you recall pre Web ubiquity, in the enterprise realm for instance, Open Database Connectivity (<a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id12c6dd40">ODBC</a>) emerged as a mechanism for separating <a href="http://dbpedia.org/resource/Data" id="link-id13d6a5b0">Data</a> Access and <a href="http://dbpedia.org/resource/Data" id="link-id10b29488">Data</a> Management in the database oriented Client-Sever model. Although <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id106a8bd8">ODBC</a> gave you access to <a href="http://dbpedia.org/resource/Data">data</a>, the data access entry point took the form of a data access specific naming mechanism called a "Data Source Name" (DSN). <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id106eef18">ODBC</a> DSNs typically exposed Tables or Views. The same thing applies to <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id12c6dfe8">JDBC</a> where a non <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id104cb620">HTTP</a> based URN scheme applies.</p> <p>Zip forward to where we are today on the Web; the Web is evolving from a Document centric Database to a Distributed <a href="http://dbpedia.org/resource/Object_database" id="link-id12d15268">Object Database</a>, and you should see that in <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10716bb8">Linked Data</a> we are now truly looking at the best of all worlds: Web Open Database Connectivity (WODBC) with the following advantages:</p> <ul>- direct Access to a single Record (an <a href="http://dbpedia.org/resource/Entity" id="link-id1037d530">Entity</a>) or Record Sets (<a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id10d48e98">RDF</a> based <a href="http://dbpedia.org/resource/Entity" id="link-id1402c8f0">Entity</a> Sets) by reference over <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id10bae7a8">HTTP</a> across disparate Data Spaces on the Web</ul> <ul>- the ability to mesh disparate data sources without being impeded by back-end DBMS engine model, vendor, host operating development frameworks, or host operating system specificity</ul> <ul>- an opportunity to learn from the enterprise DBMS market and Client-Server markets of yore with regards to the shape and form of next generation <a href="http://dbpedia.org/resource/Linked_Data" id="link-id10fe4558">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id10153c98">Web</a> oriented solutions.</ul> <p>To conclude, we now have "Semantics Inside" (<a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id109d1280">RDF</a> or non <a href="http://dbpedia.org/resource/Resource_Description_Framework">RDF</a>), "<a href="http://dbpedia.org/resource/Semantic_Web" id="link-id106741a8">Semantic Web</a>" (RDF graphs with Object Identifiers that may or may not be <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id1011cc28">HTTP</a> based), and "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id10793f70">Linked Data</a> <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id149ecc10">Web</a>" (RDF graphs with Object Identifiers that must be <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id10a3b860">HTTP</a> based and dereferencable) oriented applications, in the emerging landscape associated with the "Semantics" moniker.</p> <p>As per usual, this post is a record in my <a href="http://dbpedia.org/resource/Blog" id="link-id1020e240">Blog</a> oriented <a href="http://en.wikipedia.org/wiki/Data_Spaces" id="link-id105cbf90">Data Space</a> on the Web. The permalink of this post is a <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id10ce53a8">URI</a> constructed with <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1082f0f8">Giant Global Graph</a> enrichment in mind :-)</p>
Linked Data enabling PHP Applications
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-04-10#1334
2008-04-10T18:09:49Z
2008-04-10T14:12:47-04:00
<p> <a href="http://myopenlink.net/dataspace/person/danieljohnlewis#this" id="link-id10820610">Daniel lewis</a> has penned a variation of post about <a href="http://vanirsystems.com/danielsblog/2008/04/10/simplified-adding-wordpress-blogs-into-the-linked-data-web-using-virtuoso/" id="link-id10827948">Linked Data enabling PHP applications</a> such as: <a href="http://dbpedia.org/resource/WordPress" id="link-id10426278">Wordpress</a>, <a href="http://dbpedia.org/resource/PhpBB" id="link-id13f431c0">phpBB3</a>, <a href="http://dbpedia.org/resource/MediaWiki" id="link-id10dd8760">MediaWiki</a> etc.</p> <p>Daniel simplifies my post by using diagrams to depict the different paths for <a href="http://dbpedia.org/resource/PHP" id="link-id10adcc08">PHP</a> based applications exposing <a href="http://dbpedia.org/resource/Linked_Data" id="link-id107b4e60">Linked Data</a> - especially those that already provide a significant amount of the content that drives <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id13b0ab48">Web</a> 2.0.</p> <p>If all the content in <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id0x1d499470">Web</a> 2.0 <a href="http://dbpedia.org/resource/Information" id="link-id12bd3b10">information</a> resources are distillable into discrete <a href="http://dbpedia.org/resource/Data" id="link-id10962060">data</a> objects endowed with <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id176a30e8">HTTP</a> based IDs (URIs), with zero "<a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=rdf%20tax&type=text&output=html" id="link-id1098bcd8">RDF handcrafting Tax</a>", what do we end up with? A <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1372ce88">Giant Global Graph</a> of <a href="http://dbpedia.org/resource/Linked_Data" id="link-id0xa29f0658">Linked Data</a>; the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> as a Database.</p> <p>So, what used to apply exclusively, within enterprise settings re. <a href="http://dbpedia.org/resource/Oracle_Database" id="link-id12d91448">Oracle</a>, <a href="http://dbpedia.org/resource/IBM_DB2" id="link-id13dd27d8">DB2</a>, <a href="http://dbpedia.org/resource/IBM_Informix" id="link-id108e6b98">Informix</a>, <a href="http://dbpedia.org/resource/Ingres" id="link-id13383708">Ingres</a>, <a href="http://dbpedia.org/resource/Sybase" id="link-idfed8aa8">Sybase</a>, <a href="http://dbpedia.org/resource/Microsoft_SQL_Server" id="link-id10b8b190">Microsoft SQL Server</a>, <a href="http://dbpedia.org/resource/MySQL" id="link-id13066ea8">MySQL</a>, PostrgeSQL, Progress Open Edge, <a href="http://dbpedia.org/resource/Firebird_database_server" id="link-id104f0a78">Firebird</a>, and others, now applies to the Web. The Web becomes the "<a href="http://dbpedia.org/resource/federated_database_system" id="link-id105a5340">Distributed Database</a> Bus" that connects database records across disparate databases (or <a href="http://dbpedia.org/resource/Data" id="link-id0xc706c68">Data</a> Spaces). These databases manage and expose records that are remotely accessible "by reference" via <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id0x1c8f7fe0">HTTP</a>.</p> <p>As I've stated at every opportunity in the past, Web 2.0 is the greatest thing that every happened to the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id13d65278">Semantic Web</a> vision :-) Without the "<a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=Web%202.0%20%20conundrum&type=text&output=html" id="link-id100d16d0">Web 2.0 Data Silo Conundrum</a>" we wouldn't have the cry for "<a href="http://dbpedia.org/resource/Data">Data</a> Portability" that brings a lot of clarity to some fundamental Web 2.0 limitations that end-users ultimately find unacceptable.</p> <p> In the late '80s, the <a href="http://dbpedia.org/resource/SQL" id="link-idff4f0d0">SQL</a> <a href="http://dbpedia.org/resource/SQL_Access_Group" id="link-id138fbd40">Access Group</a> (now part of <a href="http://dbpedia.org/resource/X/Open" id="link-id104ee010">X</a>/<a href="http://dbpedia.org/resource/X/Open" id="link-id0xac9eab8">Open</a>) addressed a similar problem with <a href="http://dbpedia.org/resource/Relational_database_management_system" id="link-id106d2008">RDBMS</a> silos within the enterprise that lead to the SAG <a href="http://dbpedia.org/resource/Call_Level_Interface" id="link-id105d45d0">CLI</a> which is exists today as Open Database Connectivity.</p> <p>In a sense we now have WODBC (Web Open Database Connectivity), comprised of Web Services based CLIs and/or traditional back-end DBMS CLIs (<a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-id13f58708">ODBC</a>, <a href="http://dbpedia.org/resource/Java_Database_Connectivity" id="link-id10aa81e0">JDBC</a>, <a href="http://dbpedia.org/resource/ADO.NET" id="link-id5fddb68">ADO</a>.<a href="http://dbpedia.org/resource/ADO.NET" id="link-id0x9f085a10">NET</a>, OLE-DB, or Native), Query Language (<a href="http://dbpedia.org/resource/SPARQL" id="link-id10adb5c8">SPARQL</a> Query Language), and a Wire Protocol (<a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol">HTTP</a> based <a href="http://www.w3.org/TR/rdf-sparql-protocol/" id="link-id126fa068">SPARQL Protocol</a>) delivering Web infrastructure equivalents of <a href="http://dbpedia.org/resource/SQL" id="link-id0x1d0a5fc8">SQL</a> and RDA, but much better, and with much broader scope for delivering profound value due to the Web's inherent openness. Today's <a href="http://dbpedia.org/resource/PHP" id="link-id0xc88ed68">PHP</a>, <a href="http://dbpedia.org/resource/Python_programming_language" id="link-id10a70530">Python</a>, <a href="http://dbpedia.org/resource/Ruby_programming_language" id="link-id13d9da18">Ruby</a>, <a href="http://dbpedia.org/resource/Tcl" id="link-id10a3c2a8">Tcl</a>, <a href="http://dbpedia.org/resource/Perl" id="link-id13e1b6f0">Perl</a>, <a href="http://dbpedia.org/resource/ASP.NET" id="link-id10810388">ASP</a>.<a href="http://dbpedia.org/resource/ASP.NET" id="link-id0xa22ce378">NET</a> developer is the enterprise <a href="http://dbpedia.org/resource/4GL" id="link-id1396a500">4GL</a> developer of yore, without enterprise confinement. We could even be talking about <a href="http://dbpedia.org/resource/5GL" id="link-id1077f250">5GL</a> development once the <a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> interaction is meshed with dynamic languages (delivering higher levels of abstraction at the language and data interaction levels). Even the underlying schemas and basic design will evolve from <a href="http://dbpedia.org/resource/Closed_world_assumption" id="link-id10b280c8">Closed World</a> (solely) to a mesh of Closed & <a href="http://dbpedia.org/resource/Open_world_assumption" id="link-id104b9978">Open World</a> view schemas.</p>
Recent Data Portability, Linked Data, and Open Data Access Podcasts
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-04-09#1332
2008-04-09T17:15:56Z
2008-04-09T13:22:23.000002-04:00
<p>I just listen to, and very much enjoyed (lots of chuckling) <a href="http://www.dajobe.org/" id="link-id177310c8">Dave Beckett</a>'s podcast interview on the <a href="http://talk.talis.com/" id="link-id1056ec98">Talis podcast network</a>. Clearly Dave has a bent for funny project names etc.. He also introduced "Inter-Webs" (<a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> <a href="http://dbpedia.org/resource/Data">Data</a> Spaces in my parlance) towards the end of the interview.</p> <p> <a href="http://www.mediaslate.org/wp/about/" id="link-idfc558f0">Trent Adams</a>, <a href="http://www.linkedin.com/pub/0/49b/4b5" id="link-id107137b0">Steve Greenberg</a>, and I, also had a podcast chat about <a href="http://www.mediaslate.org/wp/2008/03/29/dataportability-in-motion-podcast/" id="link-id10663ec8">Web Data Portability and Accessibility (Linked Data)</a>. I also remixed <a href="http://www.johnbreslin.com/" id="link-id104617f0">Jon Breslin</a>'s "<a href="http://www.slideshare.net/Cloud/dataportability-and-me-introducing-sioc-foaf-and-the-semantic-web/" id="link-id12ca2c70">Data Portability & Me</a>" presentation to produce: "<a href="http://www.slideshare.net/Cloud/data-accessibility-and-me-introducing-sioc-foaf-and-the-linked-data-web/" id="link-idfdf0cd8">Data Accessibility & Me</a>". </p> <p>The podcasts interviews and presentations provide contributions to the broadening discourse about Open Data Access / Connectivity on the Web.</p>
The Cost of doing the Right Thing
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-03-27#1330
2008-03-27T18:41:43Z
2008-03-29T00:50:07.000002-04:00
<p>One of the biggest impediments to the adoption of technology is the cost burden typically associated with doing the right thing. For instance, requirements for making the <a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> (<a href="http://dbpedia.org/resource/Giant_Global_Graph">GGG</a>) buzz would include the following (paraphrasing <a href="http://www.w3.org/People/Berners-Lee/card#i">TimBL</a>'s original <a href="http://www.w3.org/DesignIssues/LinkedData.html">Linked Data meme</a>): </p> <ul>-- identifying the things you observe, or stumble upon, using URIs (aka <a href="http://dbpedia.org/resource/Entity">Entity</a> IDs)</ul> <ul>-- construct URIs using <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol">HTTP</a> so that the Web provides a channel for referencing things elsewhere (remote object referencing)</ul> <ul>-- Expose things in your <a href="http://dbpedia.org/resource/Data">Data</a> <a href="http://en.wikipedia.org/wiki/Data_Spaces">Space</a>(s) that are potentially useful to other Web users via URIs</ul> <ul>-- Link to other Web accessible things using their URIs.</ul> <p>The list is nice, but actual execution can be challenging. For instance, when writing a <a href="http://dbpedia.org/resource/Blog">blog</a> post, or constructing a <a href="http://dbpedia.org/resource/WikiWord">WikiWord</a>, would you have enough disposable time to go searching for these URIs? Or would you compromise and continue to inject "Literal" values into the Web, leaving it to the reasoning endowed human reader to connect the dots?</p> <p>Anyway, <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces">OpenLink Data Spaces</a> is now equipped with a <a href="http://dbpedia.org/resource/Glossary">Glossary</a> system that allows me to manage terms, meaning of terms, and hyper-linking of phrases and words matching associated with my terms. The great thing about all of this is that everything I do is scoped to <a href="http://myopenlink.net/dataspace/kidehen">my Data Space</a> (my universe of discourse), I don't break or impede the other meanings of these terms outside my Data Space. The Glossary system can be shared with anyone I choose to share it with, and even better, it makes my upstreaming (rules based replication) style of blogging even more productive :-) </p> <p>Remember, on the Linked Data Web, who you know doesn't matter as much as what your are connected to, directly or indirectly. <a href="http://www.jasonkolb.com/">Jason Kolb</a> covers this issue in his post: <a href="http://www.jasonkolb.com/weblog/2008/03/users-as-data-c.html" id="link-id1586a468">People as Data Connectors</a>, and so doesFrederick Giasson via a recent post titled: <a href="http://fgiasson.com/blog/index.php/2008/03/11/networks-are-everywhere/" id="link-id108b9010">Networks are everywhere</a>. For instance, this blog post (or the entire Blog) is a bona fide <a href="http://dbpedia.org/resource/Resource_Description_Framework">RDF</a> Linked Data Source, you can use it as the Data Source of a <a href="http://dbpedia.org/resource/SPARQL">SPARQL</a> Query to find things that aren't even mentioned in this post, since all you are doing is beaming a query through my Data Space (a container of Linked Data Graphs). On that note, let's re-watch <a href="http://blog.jonudell.net/">Jon Udell</a>'s <a href="http://weblog.infoworld.com/udell/gems/queryingBlogs.html" id="link-id108c0908">"On-Demand-Blogosphere" screencast from 2006</a> :-)</p>
Semantic Web Advocate of Tribe Linked Data! (Updated)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-03-20#1324
2008-03-20T16:03:35Z
2008-03-20T16:29:47-04:00
<p>These days I increasingly qualify myself and my Semantic Web advocacy as falling under the realm Linked Data. Thus, I tend to use the following introduction: I am <a href="http://kidehen.idehen.net/dataspace/person/kidehen%23this" id="link-idfd257f0">Kingsley Idehen</a>, of the Tribe <a href="http://dbpedia.org/resource/Linked_Data" id="link-idfec62f8">Linked Data</a>.</p> <p>The aforementioned qualification is increasingly necessary for the following reasons:</p> <ol> <li>The Semantic Web vision is broad and comprised of many layers</li> <li>A new era of confusion is taking shape just as we thought we had quelled the prior AI dominated realm of confusion</li> <li>None of the Semantic Web vision layers are comprehensible in practical ways without a basic foundation</li> <li>Open Data Access is the foundation of the Semantic Web (in prior post I used the term: <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1037" id="link-idfe71640">Semantic Web Layer 1</a>)</li> <li>URIs units of Open Data Access in Semantic Web parlance i.e.. each datum on the Web must have an ID (minted by the host Data Space).</li> </ol> <p>The terms <a href="http://dbpedia.org/resource/Giant_Global_Graph" id="link-id1224e020">GGG</a>, Linked Data, Data Web, Web of Data, and Web 3.0 (when I use this term) all imply URI driven Open Data Access for the Web Database (maybe call this <a href="http://dbpedia.org/resource/Open_Database_Connectivity" id="link-idfeb86e8">ODBC</a> for the Web) -- ability to point to records across data spaces without any adverse effect to the remote data spaces. It's really important to note that none of the aforementioned terms have nothing to do with the "Linguistic Meaning of blurb". Building a smarter document exposed via a URL without exposing descriptive data links doesn't provide open access to information data sources. </p> <p>As human beings we are all endowed with reasoning capability. But we can't reason without access to data. Dearth of openly accessible structured data is the source of many ills in cyberspace and across society in general. Today we still have Subjectivity reigning over Objectivity due to the prohibitive costs of open data access.</p> <p>We can't cost-effectively pursue objectivity without cost-effective infrastructure for creating alternative views of the data behind information sources (e.g. Web Pages). More Objectivity and less Subjectivity is what the next Web Frontier is about. At OpenLink we simply use the moniker: Analysis for All! Everyone becomes a data analyst in some form, and even better, the analysis are easily accessible to anyone connected to the Web. Of course, you will be able to share special analysis with your private network of friends and family, or if you so choose, not at all :-)</p> <p>Recap, it's important to note that Linked Data is the foundation layer of the Semantic Web vision. It's not only facilitates open data access, it also enables data integration (Meshing as opposed to Mashing) across disparate data schemas</p> <p>As demonstrated by <a href="http://dbpedia.org/about" id="link-idfe37fd8">DBpedia</a> and the <a href="http://richard.cyganiak.de/2007/10/lod/" id="link-idfeeef40">Linked Data Solar system</a> emerging around it, if you <a href="http://www.w3.org/Provider/Style/URI" id="link-idee98310">URI everything, then everything is Cool</a>.</p> <p>Linked Data and <a href="http://dbpedia.org/resource/Information_silo" id="link-idfcae4a0">Information Silos</a> are mutually exclusive concepts. Thus, you cannot produce a web accessible Information Silo and then refer to it as "Semantic Web" technology. Of course, it might be very Semantic, but it's fundamentally devoid of critical "Semantic Web" essence (<a href="http://dbpedia.org/resource/DNA" id="link-id10dddd08">DNA</a>).</p> <p>My acid test for any Semantic Web solution is simply this (using a <a href="http://dbpedia.org/resource/User_agent" id="link-idff7b4e8">Web User Agent or Client</a>):</p> <ol> <li>go to the profile page of the service</li> <li>ask for an RDF representation of my profile (by this I mean "get me the raw data in structured form")</li> <li>attempt to traverse the structured data graph (RDF) that the service provides via live de-referncable URIs.</li> </ol> <p>Here is the Acid test against my Data Space:</p> <ol> <li> <a href="http://kidehen.idehen.net/dataspace/person/kidehen" id="link-idfd2e5c8">My Profile Page</a> (HTML representation dispatched via an instance of <a href="http://en.wikipedia.org/wiki/OpenLink_Data_Spaces" id="link-id10d3d0f8">OpenLink Data Spaces</a>)</li> <li>Click on the "Linked Data Tab" (HTML representation endowed with Data Links the link to information resources containing other structured descriptions of things).</li> </ol>
So, What Does "HREF" Stand For, Anyway
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-03-12#1323
2008-03-12T16:08:46Z
2008-04-10T16:13:50-04:00
<p>As per usual I am writing this post with the aim of killing a number of <a href="http://dbpedia.org/resource/Meme" id="link-id0x1caa10d8">meme</a>-birds with a single post in relation to the emerging <a href="http://dbpedia.org/resource/Linked_Data" id="link-id156867c8">Linked Data Web</a>.</p> <p>*On* the ubiquitous <a href="http://dbpedia.org/resource/World_Wide_Web" id="link-id0x1e5a1a08">Web</a> of "Linked Documents", HREF means (by definition and usage): <a href="http://dbpedia.org/resource/Hypertext" id="link-id16078f10">Hypertext</a> Reference to an <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id0x9e840368">HTTP</a> accessible <a href="http://dbpedia.org/resource/Data" id="link-id0x9e570ce8">Data</a> Object of Type: "Document" (an <a href="http://dbpedia.org/resource/Information" id="link-id0xccc6ee8">information</a> resource). Of course we don't make the formal connection of Object Type when dealing with the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> on a daily basis, but whenever you encounter the "resource not found" condition notice the message: <a href="http://dbpedia.org/resource/HTTP_404" id="link-id153b4d98">HTTP/1.0 404</a> Object Not Found, from the <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol">HTTP</a> Server tasked with retrieving and returning the resource. </p> <p>*In* the Web of "<a href="http://dbpedia.org/resource/Linked_Data" id="link-id0x9ed9fb78">Linked Data</a>", a complimentary addition to the current Web of "Linked Documents", HREF is used to reference <a href="http://dbpedia.org/resource/Data">Data</a> Objects that are of a variety of "Types", not just "Documents". And the way this is achieved, is by using <a href="http://dbpedia.org/resource/Surrogate_key" id="link-id153d4438">Data Object Identifiers</a> (URIs / IRIs that are generated by the <a href="http://dbpedia.org/resource/Linked_Data">Linked Data</a> deployment platform) in the strict sense i.e. Data Identity (<a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id0xc9ef280">URI</a>) is separated from Data Address (<a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id0x1cb62390">URL</a>). Thus, you can reference a Person Data Object (aka an instance of a Person Class) in your HREF and the <a href="http://dbpedia.org/resource/Hypertext_Transfer_Protocol" id="link-id1554e458">HTTP</a> Server returns a Description of the Data Object via a Document (again, an <a href="http://dbpedia.org/resource/Information">information</a> resource). A document containing the Description of a Data Object typically contains HREFs to other Data Objects that expose the Attributes and Relationships of the initial Person Data Object, and it this collection of Data Objects that is technically called a "Graph" -- which is what <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id0xc67a780">RDF</a> models.</p> <blockquote>What I describe above is basic stuff for anyone that's familiar with Object Database or Distributed Objects technology and concepts.</blockquote> <h2><a href="http://dbpedia.org/resource/Uniform_Resource_Identifier">URI</a> and <a href="http://dbpedia.org/resource/Uniform_Resource_Locator">URL</a> confusion</h2> <p>The Linked Document Web is a collection of physical resources that traverse the Web Information Bus in palatable format i.e documents. Thus, Document Object Identity and Document Object Data Address can be the same thing i.e. a <a href="http://dbpedia.org/resource/Uniform_Resource_Locator" id="link-id1525d028">URL</a> can serve as the <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id16e50b50">ID/URI</a> of a Document Data Object.</p> <p>The Linked Data Web on the other hand, is a Distributed Object Database, and each Data Object must be uniquely defined, otherwise we introduce ambiguity that ultimately taints the Database itself (making incomprehensible to reasoning challenged machines). Thus we must have unique Object IDs (URIs / IRIs) for People, Places, Events, and other things that aren't Documents. Once we follow the time tested rules of Identity, People can then be associated with the things they create (<a href="http://dbpedia.org/resource/Blog" id="link-id0xc7c3ce0">blog</a> posts, web pages, bookmarks, wikiwords etc). <a href="http://dbpedia.org/resource/Resource_Description_Framework">RDF</a> is about expressing these graph model relationships while RDF serialization formats enables the information resources to transport these data object link ladden information resources to requesting User Agents.</p> <p>Put in more succinct terms, all documents on the Web are compound documents in reality (e.g. mast contain a least an image these days). The Linked Data Web is about a Web where Data Object IDs (URIs) enable us to distill source data from the information contained in a compound document.</p> <h2>Examples:</h2> <ol> <li><http://community.linkeddata.org/dataspace/person/kidehen2#this> - the ID (URI minted from URL via addition of #this) of a Data Object of Type Person that Identifies me. The Person definition I use comes from the FOAF vocabulary/schema/ontology/data dictionary</li> <li><http://community.linkeddata.org/dataspace/person/kidehen2> - the URI (also a URL) of a FOAF file that contains a description of the Data <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29" id="link-id0xca491e0">Object ID</a>: <http://community.linkeddata.org/dataspace/person/kidehen2#this> (me)</li> <li>As an information resource <http://community.linkeddata.org/dataspace/person/kidehen2> can be dispatched from an HTTP server to a User Agent in (X)HTML, RDF/XML, N3/Turtle representations via HTTP Content Negotiation (<strong>note:</strong> Look at the "Linked Data" tab to see one example of what Data Links facilitate re. Data Discovery and Exploration)</li> <li>If I choose an <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29">Object ID</a> of <http://community.linkeddata.org/dataspace/person/kidehen2/this> instead of <http://community.linkeddata.org/dataspace/person/kidehen2#this> then the HTTP Server should not return an information resource (i.e provide 200 OK response) when a User Agent requests a resource via HTTP using the URI: <http://community.linkeddata.org/dataspace/person/kidehen2/this>, because a Data Object ID (URI) and the Data Object Address (URL) cannot be the same when my Data Object isn't of Type Document; the sever has to use response code 303 to redirect the user agent to the URL of an information resource that matches the Content-type designated in the HTTP Request or determine representation based on it's own quality of service rules for the information resource associated with the Object ID (URI).</li> </ol> <p>The degree of unobtrusiveness of new technology, concepts, or new applications of existing technology, is what ultimately determines eventual uptake and <a href="http://dbpedia.org/resource/Meme">meme</a> virulence (network effects). For a while, the <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id0xc86cda0">Semantic Web</a> meme was mired in confusion and general misunderstanding due to a shortage of practical use case scenario demos. </p> <p>The emergence of the <a href="http://dbpedia.org/resource/SPARQL" id="link-id0xc614158">SPARQL</a> Query Language has provided critical infrastructure for a number of products, projects, and demos, that now make the utility of the <a href="http://dbpedia.org/resource/Semantic_Web">Semantic Web</a> vision mush clearly via the simplicity of Linked Data, as exemplified by the following:</p> <ol> <li> <a href="http://community.linkeddata.org/dataspace/organization/lod#this" id="link-id0xc7c19f0">Linking Open Data Community</a> - collection of People and Linked Data Spaces (across a variety of domains)</li> <li> <a href="http://dbpedia.org/resource/DBpedia" id="link-id0xcb1c398">DBpedia</a> - Ground zero for experiencing and comprehending Linked Data</li> <li> <a href="http://dbpedia.org/resource/OpenLink_Data_Spaces" id="link-id0xc16e458">OpenLink Data Spaces</a> - a simple solution for creating Linked Data Web presence via from existing Web Data Sources (Blogs, Wikis, Shared Bookmarks, <a href="http://dbpedia.org/resource/Tag" id="link-id0xc340200">Tag</a> Spaces, Web Sites, Social Networking Services, Web Services, Discussion Forums etc..)</li> <li>OpenLink <a href="http://virtuoso.openlinksw.com" id="link-id0xca83470">Virtuoso</a> - a Universal Server for generating, managing, and deploying RDF Linked Data from <a href="http://dbpedia.org/resource/SQL" id="link-id0xcce3870">SQL</a>, XML, Web Services based data sources</li> </ol> Why Is This Post a Linked Data Demo, Again? Place the permalink of this post in a Linked Data aware user agent (<a href="http://demo.openlinksw.com/rdfbrowser" id="link-id17b79488">OpenLink RDF Browser1</a>, <a href="http://demo.openlinksw.com/rdfbrowser2" id="link-id15957150">OpenLink RDF Browser2</a>, <a href="http://dataviewer.zitgist.com/" id="link-id15550cf8">Zitgist</a>, <a href="http://www4.wiwiss.fu-berlin.de/rdf_browser" id="link-id1565a680">DISCO</a>, <a href="http://dig.csail.mit.edu/2005/ajar/release/tabulator/0.8/tab.html" id="link-id15700350">Tabulator</a>), and the you can see the universal of interlinked data exposed by this post. The Title of this post should not be the sole mechanism for determining that it is Linked to other posts about the same topic. <h2>Related</h2> <ul> <a href="http://tomayko.com" id="link-id15c56720">Ryan Tomayko</a>'s post titled: <a href="http://tomayko.com/writings/wtf-is-an-href-anyway" id="link-id1514a328">So, What Does "HREF" Stand For, Anyway</a> </ul> <ul> <a href="http://torrez.us/who#elias" id="link-id14eec928">Elias Torre</a>'s post titled: <a href="http://torrez.us/archives/2008/03/10/563/" id="link-id15722c08">The Web FTW</a> </ul> <ul> <a href="http://www.w3.org/TR/cooluris/" id="link-id1576c118">Cool URIs for the Semantic Web.</a> </ul>
My 5 Favorite Things about Linked Data on the Web
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-03-05#1319
2008-03-05T04:49:10Z
2008-03-09T11:48:35.000004-04:00
<ol> <li>End to <a href="http://dbpedia.org/resource/Buzzword" id="link-id17844268">Buzzword</a> Blur - how buzzwords are used to obscure comprehension of core concepts. Let <a href="http://dbpedia.org/resource/SKOS" id="link-id17445960">SKOS</a>, <a href="http://moat-project.org/" id="link-id175e6d80">MOAT</a>, <a href="http://scot-project.org/2007/04/03/scot-ontology-model/" id="link-id17fb2440">SCOT</a> reign! </li> <li>End of Data Silos - you don't own me, my data, my data's mobility (import/export), or accessibility (by reference) just because I signed up for Yet Another Software as Service (ySaaS)</li> <li>End of <a href="http://dbpedia.org/resource/Misinformation" id="link-id17fb02d0">Misinformation</a> - Sins of omission will no longer go unpunished the era of self induced amnesia due to competitive concerns is over, <a href="http://dbpedia.org/resource/Coopetition" id="link-id18f01838">Co-opetition</a> shall reign (<a href="http://dbpedia.org/page/Raymond_Noorda" id="link-id176cdb28">Ray Noorda</a> always envisoned this reality)</li> <li>Serendipitous information and data discovery gets cheaper by the second - you're only a link away for a universe of relevant and accessible data </li> <li>Rise of Quality - Contrary to historic president (due to all of the above) well engineered solutions will no longer be sure indicators of commercial failure</li> </ol> <p>BTW - <a href="http://bnode.org/about" id="link-id18d3eb20">Benjamin Nowack</a> penned an interesting post titled: <a href="http://bnode.org/blog/2008/03/04/semantic-web-aliases" id="link-id17fafc20">Semantic Web Aliases</a>, that covers a variety of labels used to describe the Semantic Web. The great thing about this post is that it provides yet another demonstration-in-the-making for the virtues of Linked Data :-)</p> <p>Labels are harmless when their sole purpose is the creation of routes of comprehension for concepts. Unfortunately, Labels aren't always constructed with concept comprehension in mind, most of the time they are artificial inflectors and deflectors servicing marketing communications goals.</p> <p>Anyway, irrespective of actual intent, I've endowed all of the labels from Bengee's post with URIs as my contribution important disambiguation effort re. the Semantic Web: </p> <ul> <li> <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id18e476d8">Semantic Web</a> (timbl) </li> <li> <a href="http://www.w3.org/1999/04/WebData" id="link-id17fb2ca0">Web of Data</a> (timbl) </li> <li> <a href="http://tantek.com/presentations/2004etech/realworldsemanticspres.html" id="link-id1bd0a110">lowercase semantic [wW]eb </a>(tantek) </li> <li> <a href="http://www.stefandecker.org/blog/archives/7-Semantic-Web-2.0....html" id="link-id1bd08808">Semantic Web 2.0</a> (by stefandecker, IIRC) </li> <li> <a href="http://dbpedia.org/resource/Web_3.0" id="link-id175e7098">Web 3.0</a> (by <a href="http://novaspivack.typepad.com/about.html" id="link-id19202cb8">nova</a> and others) </li> <li> <a href="http://en.wikipedia.org/wiki/Semantic_network" id="link-id1bd097f8">Semantic Graph</a> (by nova and others) </li> <li> <a href="http://dbpedia.org/resource/Hyperdata" id="link-id177a5b58">Hyperdata</a> (by <a href="http://dannyayers.com/" id="link-id178fdfc0">danja</a>) <a href="http://dbpedia.org/resource/Linked_Data" id="link-id17442ce8">Linked Data</a> (by timbl, and implemented by the <a href="http://www.wiwiss.fu-berlin.de/institute/pwo/suhl/mitarbeiter/BizerChristian.html" id="link-id174431f8">Chris Bizer</a> and <a href="http://richard.cyganiak.de/foaf.rdf%23cygri" id="link-id1c37a478">Richard Cyganiak</a> inspired, <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData" id="link-id1b93c368">Linking Open Data Community</a> and it's poster project <a href="http://dbpedia.org" id="link-id18d399f0">DBpedia</a>) </li> <li> <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=linked%20data%20web&type=text&output=html" id="link-id18e344f0">Linked Data Web</a> (by <a href="http://community.linkeddata.org/dataspace/person/kidehen2#this" id="link-id1c853578">kidehen</a>) </li> <li> <a href="http://www.mkbergman.com/?p=390" id="link-id16c0e998">Structured Web</a> (by <a href="http://www.mkbergman.com" id="link-id18f4bd28">mkbergman</a>)</li> <li> <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=semantic%20data%20web&type=text&output=html" id="link-id1a4284d8">Semantic Data Web</a> (by <a href="http://myopenlink.net/dataspace/person/kidehen%23this" id="link-id16ce8888">kidehen</a>) </li> <li>SemWeb (by the developer community) </li> <li>GGG - <a href="http://dig.csail.mit.edu/breadcrumbs/node/215" id="link-id17687f18">The Giant Global Graph</a> (by <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id1916f8d0">timbl</a>) <a href="http://blogs.talis.com/nodalities/2008/03/web_3g.php" id="link-id198c2938">Web 3G</a> (by <a href="http://iandavis.com/id/me" id="link-id17fb3d78">iand</a>) </li> </ul> <p>As per usual this post is best appreciated when processed via an Linked Data aware user agent.</p>
Additional OpenLink Data Spaces Features
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-02-09#1315
2008-02-09T17:54:35Z
2008-02-11T11:38:03.000006-05:00
<p> <a href="http://vanirsystems.com/danielsblog" id="link-id13df7aa0">Daniel Lewis</a> has published another post about <a href="http://en.wikipedia.org/wiki/OpenLink_Data_Spaces" id="link-id170b4ce8">OpenLink Data Spaces</a> (ODS) functionality titled:<a href="http://vanirsystems.com/danielsblog/2008/02/09/a-few-new-features-in-openlink-data-spaces/#comments" id="link-idf6ad9e8">A few new features in OpenLink Data Spaces</a>, that exposes additional features (some hot out the oven).</p> <blockquote> <p> <a href="http://dbpedia.org/resource/OpenLink_Data_Space" id="link-id16f42c90">OpenLink Data Spaces (<acronym title="OpenLink Data Spaces">ODS</acronym>)</a> now officially supports:</p> <ul> <li> <a href="http://apml.pbwiki.com/" id="link-id15baf3e0">Attention Profiling Markup Language (<acronym title="Attention Profiling Markup Language">APML</acronym>)</a>.</li> <li> <a href="http://moat-project.org/" id="link-iddd45db0">Meaning of a Tag (<acronym title="Meaning of a Tag">MOAT</acronym>)</a> in conjunction with <a href="http://dbpedia.org/resource/SKOS" id="link-id14b97300">Simple Knowledge Organisation System (SKOS)</a> and <a href="http://scot-project.org/" id="link-id16e84910">Social-Semantic Cloud of Tags (<acronym title="Social-Semantic Cloud of Tags">SCOT</acronym>)</a>.</li> <li> <a href="http://oauth.net/" id="link-id13e5ae50">OAuth - an Open Authentication Protocol</a> </li> </ul> <p>Which means that OpenLink Data Spaces support all of the main standards being discussed in the DataPortability Interest Group!</p> <p> <strong><em>APML Example:</em> </strong> </p> <p>All users of ODS automatically get a dynamically created APML file, for example: <a href="http://myopenlink.net/dataspace/kidehen/apml.xml" id="link-id14b59220">APML profile</a> for <a href="http://myopenlink.net/dataspace/kidehen#this" id="link-id13dbb298">Kingsley Idehen</a> </p> <p>The URI for an APML profile is: http://myopenlink.net/dataspace/<ods-username>/apml.xml</p> <p> <em><strong>Meaning of a Tag Example:</strong> </em> </p> <p>All users of ODS automatically have tag cloud information embedded inside their <a href="http://dbpedia.org/resource/SIOC" id="link-idf7182c8"><acronym title="Semantically Interlinked Online Communities">SIOC</acronym></a> file, for example: SIOC for Kingsley Idehen on the Myopenlink.net installation of ODS.</p> <p>But even better, MOAT has been implemented in the ODS Tagging System. This has been demonstrated in a recent test blog post by my colleague Mitko Iliev, the blog post comes up on the tag search: <a href="http://myopenlink.net/dataspace/imitko/weblog/Mitko%27s%20Weblog/tag/paris" id="link-idfc14cf0">http://myopenlink.net/dataspace/imitko/weblog/Mitko%27s%20Weblog/tag/paris</a> </p> <p>Which can be put through the <a href="http://demo.openlinksw.com/rdfbrowser/" id="link-id14954fc8">OpenLink Data Browser</a>:</p> <ul> <li> <a href="http://demo.openlinksw.com/rdfbrowser/?uri=http%3A%2F%2Fmyopenlink.net%2Fdataspace%2Fimitko%2Fweblog%2FMitko%2527s%2520Weblog%2Ftag%2Fparis" id="link-id164edd88">OpenLink Data Browser with Mitko Ilievâs Paris Blog Tag</a> </li> </ul> <p> <strong><em>OAuth Example:</em> </strong> </p> <p>OAuth Tokens and Secrets can be created for any ODS application. To do this:</p> <ol> <li> you can log in to <a href="http://myopenlink.net:8890/ods/index.html" id="link-id167224c0">MyOpenlink.net</a> beta service, the <a href="http://demo.openlinksw.com/ods/index.html" id="link-id169733d8">Live Demo ODS installation</a>, an <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1261" id="link-id14b2d380">EC2 instance</a>, or your local installation</li> <li>then go to âSettingsâ</li> <li>and then you will see âOAuth Keysâ</li> <li>you will then be able to choose the applications that you have instantiated and generate the token and secret for that <abbr title="application">app</abbr>.</li> </ol> <p> <strong>Related Document (Human) Links</strong> </p> <ul> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/Ods" id="link-id16d1c2d8">OpenLink Data Spaces Official Page</a> </li> <li> <a href="http://www.openlinksw.com/" id="link-id16d8c500">OpenLink Software Page</a> </li> <li> <a href="http://en.wikipedia.org/wiki/OpenLink_Data_Spaces" id="link-idf6b05f0">OpenLink Data Spaces Wikipedia Page</a> </li> <li> <a href="http://www.apml.org/" id="link-id12d8bbd0">Attention Profiling Markup Language Project Website</a> </li> <li> <a href="http://moat-project.org/" id="link-id137e7108">Meaning of a Tag Project Website</a> </li> <li> <a href="http://www.w3.org/2004/02/skos/" id="link-id110f1028">Simple Knowledge Organisation Systems Project Website</a> </li> <li> <a href="http://scot-project.org/" id="link-id14b8d1e0">Social-Semantic Cloud of Tags Project Website</a> </li> <li> <a href="http://oauth.net/" id="link-id12da2dd0">OAuth Protocol Website</a> </li> <li> <a href="http://www.dataportability.org/" id="link-id13f52e08">DataPortability.org Website</a> </li> <li> <a href="http://www.sioc-project.org/" id="link-id15ebb6a0">Semantically Interlinked Online Communities Project Website<br /> </a> </li> </ul> </blockquote> <p>Remember (as per my <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1314" id="link-id16ea8bb8">most recent post about ODS</a>), ODS is about unobtrusive fusion of Web 1.0, 2.0, and 3.0+ usage and interaction patterns. Thanks to a lot of recent standardization in the Semantic Web realm (e.g SPARQL), we are now employ the MOAT, SKOS, and SCOT ontologies as vehicles for Structured Tagging.</p> <h2>Structured Tagging?</h2> <p>This is how we take a key <a href="http://dbpedia.org/resource/Web_2.0" id="link-id1884ac58">Web 2.0 </a>feature (think 2D in a sense), bend it over, to create a Linked Data Web (Web 3.0) experience unobtrusively (see <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=web%20dimensions&type=text&output=html" id="link-id14b3d8a0">earlier posts re. Dimensions of Web</a>). Thus, nobody has to change how they tag or where they tag, just expose ODS to the URLs of your Web 2.0 tagged content and it will produce URIs (Structured Data Object Identifiers) and a lnked data graph for your Tags Data Space (nee. Tag Cloud). ODS will construct a graph which exposes tag subject association, tag concept alignment / intended meaning, and tag frequencies, that ultimately deliver "relative disambiguation" of intended Tag Meaning (i.e. you can easily discern the taggers meaning via the Tags actual Data Space which is associated with the tagger). In a nutshell, the dynamics of relevance matching, ranking, and the like, change immensely without futile timeless debates about matters such as: </p> <ul>What's the Linked Data value proposition?</ul> <ul>What's the Linked Data business model?</ul> <ul> <a href="http://dbpedia.org/resource/XML" id="link-id105abcb0">XML</a> vs <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id14b27b28">RDF</a> </ul> <ul> <a href="http://dbpedia.org/resource/XQuery" id="link-id10572dd0">XQuery</a> vs <a href="http://dbpedia.org/resource/SPARQL" id="link-id1326d4c8">SPARQL</a> </ul> <ul>What's the Semantic Web Killer application?</ul> <p>We can just get on with demonstrating Linked Data value using what exists on the Web today. This is the approach we are deliberately taking with ODS.</p> <h2>Related Items</h2> <ul> <a href="http://www.betaversion.org/~stefano" id="link-id170849b0">Stefano Mazzocch</a>'s <a href="http://blogs.usnet.private:8893/linotype/news/85/" id="link-idfde2e08"> response to Clay Shirky's 2005 talk</a> titled: <a href="http://conferences.oreillynet.com/cs/et2005/view/e_sess/6117" id="link-id13f45030">Ontology is Overrated: Links, Tags and Post-hoc Metadata</a> </ul> <ul> <a href="http://tomgruber.org" id="link-id16c745b8"> Tom Gruber</a>'s post titled: <a href="http://tomgruber.org/writing/ontology-of-folksonomy.htm" id="link-id13cbe7b0">Ontology of Folksonomy: A Mash-up of Apples and Oranges</a> </ul>. <p> <strong>Tip:</strong> This post is best viewed via an RDF aware User Agent (e.g. a <a href="http://demo.openlinksw.com/rdfbrowser" id="link-id14b325b8">Browser</a> or <a href="http://dataviewer.zitgist.com" id="link-id164bfab0">Data Viewer</a>). I say this because the permalink of this post is a URI in a Linked Data Space (My Blog) comprised of more data than meets the eye (i.e. what you see when you read this post via a Document Web Browser) :-)</p>
10 Reasons to use OpenLink Data Spaces (ODS)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-02-08#1314
2008-02-08T17:33:45Z
2008-02-08T17:08:43-05:00
<p>Via post by <a href="http://vanirsystems.com/danielsblog" id="link-id1480d7c0">Daniel Lewis</a>, titled:<a href="http://vanirsystems.com/danielsblog/2008/02/08/10-reasons-to-use-openlink-data-spaces/#comments" id="link-id1320a618">10 Reasons to use OpenLink Data Spaces</a> </p> <blockquote> <p>There are quite a few reasons to use <a href="http://en.wikipedia.org/wiki/OpenLink_Data_Space" id="link-id103eb060">OpenLink Data Spaces (ODS)</a>. Here are 10 of the reasons why I use ODS:</p> <ol> <li>Its native support of DataPortability Recommendations such as <a href="http://dbpedia.org/resource/RSS" id="link-id18957e88">RSS</a>, <a href="http://dbpedia.org/resource/Atom_%28standard%29" id="link-id1410a9c0">Atom</a>, <a href="http://www.apml.org/" id="link-idfde4b90">APML</a>, <a href="http://dbpedia.org/resource/Yadis" id="link-id1328c260">Yadis</a>, <a href="http://dbpedia.org/resource/OPML" id="link-id10133f70">OPML</a>, <a href="http://dbpedia.org/resource/Microformat" id="link-id16e19be0">Microformats</a>, <a href="http://dbpedia.org/resource/Friend_of_a_friend" id="link-id12deef98">FOAF</a>, <a href="http://dbpedia.org/resource/SIOC" id="link-id15fb99b0">SIOC</a>, <a href="http://dbpedia.org/resource/OpenID" id="link-id1390ae10">OpenID</a> and <a href="http://en.wikipedia.org/wiki/OAuth" id="link-id14dcce70">OAuth</a>.</li> <li>Its native support of Semantic Web Technologies such as: <a href="http://dbpedia.org/resource/Resource_Description_Framework" id="link-id15fc75a0">RDF</a> and <a href="http://dbpedia.org/resource/SPARQL" id="link-id14255238">SPARQL</a>/<a href="http://jena.hpl.hp.com/~afs/SPARQL-Update.html" id="link-id15fe2e40">SPARUL</a> for querying.</li> <li>Everything in ODS is an <a href="http://dbpedia.org/resource/Object_%28computer_science%29" id="link-id11c204a0">Object</a> with its own <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id14812560">URI</a>, this is due to the underlying <a href="http://dbpedia.org/resource/Object-relational_database" id="link-idf663e08">Object-Relational</a> Architecture provided by <a href="http://dbpedia.org/resource/Virtuoso_Universal_Server" id="link-id1484e4c8">Virtuoso</a>.</li> <li>It has all the social media components that you could need, including: <a href="http://dbpedia.org/resource/Blog" id="link-id10120b58">blogs</a>, <a href="http://dbpedia.org/resource/Wiki" id="link-id14d9a608">wikis</a>, <a href="http://dbpedia.org/resource/Social_network_service" id="link-idf0b3a30">social networks</a>, <a href="http://dbpedia.org/resource/Aggregator" id="link-id188d7c78">feed readers</a>, <a href="http://dbpedia.org/resource/Customer_relationship_management" id="link-id134a2c48">CRM</a> and a <a href="http://dbpedia.org/resource/Calendar" id="link-idf66af80">calendar</a>.</li> <li>It is expandable by installing pre-configured components (called VADs), or by re-configuring a <a href="http://dbpedia.org/resource/LAMP_%28software_bundle%29" id="link-id102e8008">LAMP</a> application to use <a href="http://dbpedia.org/resource/Virtuoso_Universal_Server" id="link-id13fe2b68">Virtuoso</a>. Some examples of current VADs include: <a href="http://dbpedia.org/resource/MediaWiki" id="link-id1011d9f0">MediaWiki</a>, <a href="http://dbpedia.org/resource/WordPress" id="link-id13624060">Wordpress</a> and <a href="http://dbpedia.org/resource/Drupal" id="link-id100c4510">Drupal</a>.</li> <li>It works with external webservices such as: <a href="http://dbpedia.org/resource/Facebook" id="link-id131fe6d0">Facebook</a>, <a href="http://dbpedia.org/resource/Del.icio.us" id="link-idfdd1580">del.icio.us</a> and <a href="http://dbpedia.org/resource/Flickr" id="link-id1496aff0">Flickr.</a> </li> <li>Everything within OpenLink Data Spaces is <a href="http://dbpedia.org/resource/Linked_Data" id="link-id17114c00">Linked Data</a>, which provides more meaningful information than just plain structural information. This meaningful information could be used for complex inferencing systems, as ODS can be seen as a <a href="http://dbpedia.org/resource/Expert_system" id="link-id15ea4108">Knowledge Base</a>.</li> <li>ODS builds bridges between the existing static-document based web (aka â<a href="http://dbpedia.org/resource/Web_1.0" id="link-idf08b338">Web 1.0</a>â), the more dynamic, services-oriented, social and/or user-orientated webs (aka â<a href="http://dbpedia.org/resource/Web_2.0" id="link-idfde26e0">Web 2.0</a>â) and the web which we are just going into, which is more data-orientated (aka â<a href="http://dbpedia.org/resource/Web_3.0" id="link-idf9b7328">Web 3.0</a>â or âLinked Data Webâ).</li> <li>It is fully supportive of <a href="http://dbpedia.org/resource/Cloud_computing" id="link-id189480d0">Cloud Computing</a>, and can be installed on <a href="http://dbpedia.org/resource/Amazon_Elastic_Compute_Cloud" id="link-id10026778">Amazon EC2</a>.</li> <li>Its released free under the GNU <a href="http://dbpedia.org/resource/GNU_General_Public_License" id="link-id16002fb0">General Public License (GPL)</a>. [note]However, it is technically dual licensed as it lays on top of the <a href="http://en.wikipedia.org/wiki/Virtuoso_Universal_Server" id="link-id132d4238">Virtuoso Universal Server</a> which has both Commercial and GPL licensing[/note]</li> </ol> </blockquote> <p>The features above collectively provide users with a Linked Data Junction Box that may reside with corporate intranets or "out in the clouds" (Internet). You can consume, share, and publish data in a myriad of formats using a plethora of protocols, without any programming. ODS is simply about exposing the data from your Web 1.0, 2.0, 3.0 application interactions in structured from, with Linking, Sharing, and ultimately Meshing (not Mashing) in mind.</p> <p> <strong>Note:</strong> Although ODS is equipped with a broad array of Web 2.0 style Applications, you do not need to use native ODS apps in order to exploit it's power. It binds to anything that supports the relevant protocols and data formats.</p>
2008, Facebook Data Portability, and the Giant Global Graph of Linked Data
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2008-01-05#1289
2008-01-05T17:11:55Z
2008-01-07T11:44:42.000007-05:00
<p>As 2007 came to a close I repeatedly mulled over the idea of putting together a usual "year in review" and a set of predictions for the coming year etc. Anyway, the more I pondered, the smaller the list became. While pondering (as 2008 rolled around), the <a href="http://www.techmeme.com/080103/p154#a080103p154" id="link-id113db9a0">Blogosphere was set ablaze with the <a href="http://dbpedia.org/resource/Robert_Scoble" id="link-idfe12a58">Robert Scoble</a>'s announcement of his account suspension by Facebook</a>. Of course, many chimed in expressing views either side of the ensuing debate: <a href="http://www.scripting.com/stories/2008/01/03/scobleAndHisFacebookData.html" id="link-id161e7c48">Who is right -- Scoble or Facebook</a>. The more I assimilated the views expressed about this event, the more ironic I found the general discourse, for the following reasons:</p> <ol> <li> <a href="http://dbpedia.org/resource/Web_2.0" id="link-id16f6f3e0">Web 2.0</a> is fundamentally about <a href="http://dbpedia.org/resource/Web_service" id="link-id1770f3c0">Web Services</a> as the prime vehicle for interactions across "points of Web presence"</li> <li> <a href="http://dbpedia.org/resource/Facebook" id="link-id162f3f60">Facebook</a> is a Web 2.0 hosted service for <a href="http://dbpedia.org/resource/Social_Networking" id="link-id16e1dfc8">social networking</a> that provides Web Services APIs for accessing data in the Facebook data space. You have to do so "on the fly" within clearly defined constraints i.e you can interact with data across your social network via Facebook APIs, but you cannot cache the data (perform an export style dump of the data)</li> <li> Facebook is a main driver of the term: "social graph", but their underlying data model is relational and the Web Services response (data you get back) doesn't return a data graph, instead it returns an tree (i.e XML)</li> <li> <a href="http://blogsearch.google.com/blogsearch?hl=en&q=scoble+semantic+web&btnG=Search+Blogs" id="link-id16680d08">Scoble's had a number of close encounters with Linked Data Web | Semantic Data Web | Web 3.0 aficionados</a> in various forms throughout 2007, but still doesn't quite make the connection between Web Services APIs as part of a processing pipeline that includes structured data extraction from XML data en route to producing Data Graphs comprised of Data Objects (Entities) endowed with: <a href="http://dbpedia.org/resource/Identity_%28object-oriented_programming%29" id="link-id16af1f98">Unique Identifiers</a>, Classification or Categorization schemes, Attributes, and Relationships prescribed by one or more shared Data Dictionaries/Schemas/Ontologies</li> <li> A global information bus that exposes a <a href="http://dbpedia.org/resource/Linked_Data" id="link-id16ce7c68">Linked Data</a> mesh comprised of Data Objects, Object Attributes, and Object Relationships across "points of Web presence" is what <a href="http://www.w3.org/People/Berners-Lee/card#i" id="link-id1aa304e0">TimBL</a> described in 1998 (<a href="http://www.w3.org/DesignIssues/Semantic.html" id="link-id1a822db0">Semantic Web Roadmap</a>) and more recently in 2007 (<a href="http://dig.csail.mit.edu/breadcrumbs/node/215" id="link-id181e5998">Giant Global Graph</a>)</li> <li> The Linked Data mesh (i.e Linked Data Web or GGG) is anchored by the use of HTTP to mint Location, Structure, and Value independent Object Identifiers called <a href="http://dbpedia.org/resource/Uniform_Resource_Identifier" id="link-id16eae370">URI</a>s or <a href="http://dbpedia.org/resource/IRI" id="link-idffe16b8">IRI</a>s. In addition, the Linked Data Web is also equipped with a query language, protocol, and results serialization format for XML and JSON called: SPARQL. </li> </ol> <p>So, unlike Scoble, I am able to make my Facebook Data portable without violating Facebook rules (no data caching outside Facebook realm) by doing the following:</p> <ol> <li> Use an RDFizer for Facebook to convert XML response data from Facebook Web Services into RDF "on the fly" Ensure that my RDF is comprised of Object Identifiers that are HTTP based and thereby dereferencable (i.e. I can use SPARQL to unravel the Linked Data Graph in my Facebook data space)</li> <li> The act of data dereferencing enables me to expose my Facebook Data as Linked Data associated with my <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id16b3e9d0">Personal URI</a> </li> <li> This interaction only occurs via my data space and in all cases the interactions with data work via my <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/weblog/kidehen@openlinksw.com%27s%20BLOG%20%5B127%5D/1172" id="link-id16c628b8">RDFizer middleware</a> (e.g the <a href="http://virtuoso.openlinksw.com/presentations/Virtuoso_Sponger_1/Virtuoso_Sponger_1.html" id="link-id1572fb28">Virtuoso Sponger</a>) that talks directly to Facebook Web Services. </li> </ol> <p>In a nutshell, my Linked Data Space enables you to reference data in my data space via Object Identifiers (URIs), and some cases the Object IDs and Graphs are constructed on the fly via RDFization middleware.</p> <p>Here are my URIs that provide different paths to my Facebook Data Space:</p> <ul> <a href="http://myopenlink.net/dataspace/person/kidehen#this" id="link-id16f817a8"> Personal URI</a> </ul> <ul> <a href="http://myopenlink.net/proxy?url=http%3A//www.facebook.com/people/Kingsley_Idehen/605980750&force=rdf&login=kidehen" id="link-id1a8e5950">My Facebook Data Space</a> (best viewed via a <a href="http://demo.openlinksw.com/rdfbrowser/?uri=http%3A%2F%2Fmyopenlink.net%2Fproxy%3Furl%3Dhttp%253A%2F%2Fwww.facebook.com%2Fpeople%2FKingsley_Idehen%2F605980750%26force%3Drdf%26login%3Dkidehen" id="link-id15476588">Linked Data Browser/Viewer</a> session) </ul> <ul> <a href="http://myopenlink.net/proxy?url=http%3A//www.facebook.com/album.php%3Faid%3D14768%26id%3D605980750&force=rdf&login=kidehen" id="link-id16e3bcf0">My Facebook Photo Gallery -- WWW2007 Photo Collection</a> (also best viewed via a <a href="http://demo.openlinksw.com/rdfbrowser/?uri=http%3A%2F%2Fmyopenlink.net%2Fproxy%3Furl%3Dhttp%253A%2F%2Fwww.facebook.com%2Falbum.php%253Faid%253D14768%2526id%253D605980750%26force%3Drdf%26login%3Dkidehen" id="link-id16e10270">Linked Data Browser/Viewer</a> session) </ul> <p>To conclude, 2008 is clearly the inflection year during which we will final unshackle Data and Identity from the confines of "Web Data Silos" by leveraging the HTTP, SPARQL, and RDF induced virtues of Linked Data. </p> <p>Related Posts:</p> <ol> <li> <a href="http://blogs.sun.com/bblfish/entry/2008_the_rise_of_linked" id="link-id156baac0">2008 and the Rise of Linked Data</a> </li> <li> <a href="http://blogs.sun.com/bblfish/entry/data_portability_scoble_explains" id="link-id16291310">Scoble Right, Wrong, and Beyond</a> </li> <li> <a href="http://scobleizer.com/2007/11/30/talking-with-tim-berners-lee-inventor-of-the-web/" id="link-id163c9c38">Scoble interviewing TimBL</a> (note to Scoble: re-watch your interview since he made some specific points about Linked Data and URIs that you need to grasp)</li> <li>Prior Blog posts my this Blog Data Space that include the literal patterns: <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=scoble%20semantic%20web&type=text&output=html" id="link-id163e6cd0">Scoble Semantic Web</a> </li> </ol>
Open Source and Open Data Movements
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-04-01#1175
2007-04-01T22:02:15Z
2007-04-01T17:55:55.000001-04:00
<p> <a href="http://www.25hoursaday.com/weblog/PermaLink.aspx?guid=69141977-7514-443d-800b-1f95c1ff8dbe">Dare Obasanjo's post about the issue of Open Data</a> (or Open Data Access), indicates that the "<a href="http://en.wikipedia.org/wiki/Open_Data">Open Data</a>" issue is gradually beginning to resonate across a broader audience.</p> <p>From my perspective on things I prefer to align my articulation of the changes that are occurring across our industry (courtesy of the Internet Inflection) to the <a href="http://en.wikipedia.org/wiki/Model-view-controller">MVC pattern</a>.</p> <p>Re. the Web Versions (or Dimensions of Interaction):</p> <ul> Web 1.0 - (V)iewer (Interactive Web experienced via Browser) </ul> <ul> Web 2.0 - (C)ontroller Web (via Web Services API) </ul> <ul> Web 3.0 - (M)odel (via the RDF Data Model as the basis for an Open and Standards based Concrete Conceptual Data Model)</ul> <p>The same applies to evolution of Openness:</p> <ul> Early work by Sun and other early UNIX Vendors - (V)iewer (Interaction with the same OS across different hardware platforms)</ul> <ul>Open Source Movement - (C)ontroller (Open Access to Application Source Code )</ul> <ul>Open Data - (M)odel (*where we are now* Freeing the Date from the Applications and Services while moving the application development focus to a Concrete Conceptual Data Model focus. The Data Web is a classic example.)</ul> <p>In the (C)ontroller realm where the focal point is Application Logic, data access issues aren't obvious (*I recall <a href="http://207.22.26.166/bytecols/1999-11-03.html">my battles with Richard Stallman re. the appropriate Open Source License variant for iODBC</a> during the embryonic years of database and data access technology on Linux*). Data is an enigma in this realm, unfortunately. This implies that "Data Lock-in" occurs deliberately, but in most cases, inadvertently when we make Application Logic the focal point of everything. Another example is Web 2.0 in which the norm (unfortunately) is to suck in your data, and then refuse to give you complete ownership over how it is used (including the fact that you may want to share it elsewhere).</p> <a href="http://en.wikipedia.org/wiki/Open_Data">Open Data</a> is a really big deal which is why the <a href="http://www.w3.org/2001/sw/sweo/">SWEO</a> supported <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData">Linking Open Data Project</a> is a very big deal. The good news is that this movement is gathering moment at an exponential rate :-)
RDF Browsers & RDF Data Middleware
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-03-28#1172
2007-03-28T23:17:00Z
2007-04-29T14:59:05-04:00
<p> <a href="http://fgiasson.com/blog">Frederick Giasson</a> penned an interesting post earlier today that highlighted the RDF Middleware services offered by <a href="http://fgiasson.com/blog/index.php/2007/03/28/making-the-bridge-between-the-web-and-the-semantic-web/#comments">Triplr and the Virtuoso Sponger</a> </p> <p>Some Definitions (as per usual):</p> <p>RDF Middleware (as defined in this context) is about producing RDF from non RDF Data Sources. This implies that you can use non RDF Data Sources (e.g. (X)HTML Web Pages, (X)HTML Web Pages hosting Microformats, and even Web Services such as those from Google, Del.icio.us, Flickr etc..) as Semantic Web Data Source URIs (pointers to RDF Data).</p> <p>In this post I would like to provide a similar perspective on this ability to treat non RDF as RDF from RDF Browser perspective.</p> <p>First off, what's an RDF Browser?</p> <p>An RDF Browser is a piece of technology that enables you to Browse <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData">RDF Data Sources</a> by way of Data Link Traversal. The key difference between this approach and traditional browsing is that Data Links are typed (they possess inherent meaning and context) whereas traditional links are untyped (although universally we have been trained to type them as links to Blurb in the form of (X)HTML pages or what is popularly called "Web Content".).</p> <p>There are a number of RDF Browsers that I am aware off (note: pop me a message directly of by way of a comment to this post if you have a browser that I am unaware of), and they include (in order of creation and availability):</p> <ol> <li> <a href="http://www.w3.org/2005/ajar/tab">Tabulator</a> </li> <li> <a href="http://sites.wiwiss.fu-berlin.de/suhl/bizer/ng4j/disco/">DISCO - Hyperdata Browser</a> </li> <li> <a href="http://demo.openlinksw.com/DAV/JS/rdfbrowser/index.html">OpenLink Ajax Toolkit's RDF Browser</a> (a component of the <a href="http://demo.openlinksw.com/DAV/JS/demo/index.html">OAT Javascript Toolkit</a>)</li> </ol> <p>Each of the browsers above can consume the services of Triplr or the Virtuoso Sponger en route to unveiling a RDF Data that is traversable via <a href="http://www.w3.org/TR/2004/REC-webarch-20041215/#dereference-uri">URI dereferencing</a> (HTTP GETing the data exposed by the Data Pointer). Thus you can cut&paste the following into each of the aforementioned RDF Browsers:</p> <ol> <li> <a href="http://triplr.org/rdf/http://www.w3.org/People/Connolly/">Triplr's RDF Data (Triples) extractions from Dan Connolly's Home Page</a> </li> <li> <a href="http://demo.openlinksw.com/proxy?url=http://www.w3.org/People/Connolly/&force=rdf">The Virtuoso Sponger's RDF Data (Triples) extractions from Dan Connolly's Home Page</a> </li> </ol> <p>Since we are all time challenged (naturally!) you can also just click on these permalinks for the OAT RDF Browser demos:</p> <ol> <li> <a href="http://demo.openlinksw.com/DAV/JS/rdfbrowser/index.html?uri[]=http%3A%2F%2Ftriplr.org%2Frdf%2Fhttp%3A%2F%2Fwww.w3.org%2FPeople%2FConnolly%2F&"">Permalink for Triplr's RDF Data (Triples) extractions from Dan Connolly's Home Page</a> </li> <li> <a href="http://demo.openlinksw.com/DAV/JS/rdfbrowser/index.html?uri=http%3A%2F%2Fwww.w3.org%2FPeople%2FConnolly%2F%23me">Permalink for the Virtuoso Sponger's RDF Data (Triples) extractions from Dan Connolly's Home Page</a> </li> </ol>
Data Web, Googlebase, and Yahoo!
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-03-22#1165
2007-03-22T23:04:21Z
2007-03-22T19:14:55-04:00
<p>A defining characteristic of the Data Web (Context Oriented Web 3.0) is that it facilitates Meshups rather than Mashups.</p> <p>Quick Definitions:</p> <ul> Mashups - Brute force joining of disparate Web Data</ul> <ul> Meshups - Natural joining of disparate Web Data </ul> <p> Reasons for the distinction:</p> <ul>Mashups are Data Model oblivious.</ul> <ul>Meshups are Data Model driven.</ul> <p>Examples:</p> <ul> Mashups are based on RSS 2.0 most of the time (RSS 2.0 is at best a Tree Structure that contains untyped or meaning challenged links.</ul> <ul> Meshups are RDF based and the data is self describing since the links are typed (posses inherent meaning thereby providing context).</ul> <p>So what? You may be thinking.</p> <p>For starters, I can quite easily Mesh data from Googlebase (which emits RSS 2.0 or Atom) and other data sources with the Mapping Services from Yahoo!</p> <p>I can achieve this in minutes without writing a single line of code. I can do it because of the Data Model prowess of RDF (self-describing instance-data), the data interchange and transformation power of XML and XSLT respectively, the inherent power of XML based Web Services (REST or SOAP), and of course, having a Hybrid Server product like <a href="http://en.wikipedia.org/wiki/Virtuoso_Universal_Server">Virtuoso</a> at my disposal that delivers a cross platform solution for exploiting all of these standards coherently.</p> <p>I can share the self-describing describing data source that serves my Meshup. Try reusing the data presented by a Mashup via the same URL that you used to locate Mashup to get my drift.</p> <p>Demo Links:</p> <ol> <li> <a href="http://demo.openlinksw.com/DAV/JS/rdfbrowser/index.html#http%3A%2F%2Fdemo.openlinksw.com%2FDAV%2Fhome%2Fdemo%2FPublic%2FQueries%2FDataWeb%2Fgoogle_base_jobs_dataspace.isparql">Googlebase Query URL as an RDF Data Source</a> </li> <li>Perform a simple Data Mesh by adding (via link copy and paste) this <a href="http://upcoming.org/search/?q=ajax&scope=allmetros&type=Events">Upcoming.org Query Services URL for Ajax Events</a> to the RDF Browsers list of Data Sources (paste into the Data Source URI input field).</li> </ol> <p>What does this all mean?</p> <p>"Context" is the catalyst of the burgeoning Data Web (Semantic Web Layer - 1). It's the <a href="http://sramanamitra.com/blog/729">emerging appreciation of "Context"</a> that is driving the growing desire to increment Web versions from 2.0 to 3.0. It also the the very same "Context" that has been a preoccupation of <a href="http://www.w3.org/2001/sw/Activity">Semantic Web vision</a> since its inception.</p> <p>The journey towards a more Semantic Web is all inclusive (all "ANDs" and no "ORs" re. participation).</p> <p>The Semantic Web is <a href="http://www.openlinksw.com/blog/~kidehen/?id=887">self-annotating</a>. Web 2.0 has provided a huge contribution to the self annotation effort: on the Web we now have Data Spaces for Bookmarks (e.g del.icio.us), Image Galleries ( e.g Flickr), Discussion Forums (remember those comments associated with blog posts? ditto the pingbacks and trackbacks?), People Profiles (FOAF, XFN, del.icio.us, and those crumbling walled-gardens around many Social Networks), and more..</p> <p>A Web without granular access to Data is simply not a Web worth having (think about the menace of click-fraud and spam).</p>
Web 3.0 & Marketwatch
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-03-22#1164
2007-03-22T18:42:31Z
2007-03-22T14:33:01-04:00
<p>(Via <a href="http://sramanamitra.com">Sramana Mitra on Strategy</a>.)</p> <p> <a href="http://sramanamitra.com/blog/729#comments">Web 3.0 & Marketwatch</a>. Excerpted below: </p> <blockquote> <cite>In Web 3.0, I predict, we are going to start seeing roll-ups. We will see a trunk that emerges from the Context, be it film (Netflix), music (iTunes), cooking / food, working women, single parents, … and assembles the Web 3.0 formula that addresses the whole set of needs of a consumer in that Context. Imagine: <ul>-I am a petite woman, dark skinned, dark haired, brown eyed. I have a distinct personal style, and only certain designers resonate with it (Context).</ul> <ul>-I want my personal SAKS Fifth Avenue which carries clothes by those designers, in my size (Commerce).</ul> <ul>-I want my personal Vogue, which covers articles about that Style, those Designers, and other emerging ones like them (Content).</ul> <ul>I want to exchange notes with others of my size-shape-style-psychographic and discover what else looks good. I also want the recommendation system tell me what they’re buying (Community)</ul> <ul>There’s also some basic principles of what looks good based on skin tone, body shape, hair color, eye color … I want the search engine to be able to filter and match based on an algorithm that builds in this knowledge base (Personalization, Vertical Search).</ul> <ul> Now, imagine the same for a short, fat man, who doesn’t really have a sense of what to wear. And he doesn’t have a wife or a girl-friend. Before Web 3.0, he could go to the personal shopper at Nordstrom.</ul> <p>With Web 3.0, the internet will be his Personal Shopper.</p> </cite> </blockquote>
Web 3.0: When Web Sites Become Web Services
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-03-19#1161
2007-03-20T01:44:00Z
2007-03-20T08:27:37-04:00
<blockquote> <cite><p>(Via <a href="http://www.readwriteweb.com/">Read/Write Web</a>.)</p> <p> <a href="http://feeds.feedburner.com/~r/readwriteweb/~3/102869973/web_30_when_web_sites_become_web_services.php">Web 3.0: When Web Sites Become Web Services</a>: "</p> ..... <h2>Conclusion</h2> <p>As more and more of the Web is becoming remixable, the entire system is turning into both a platform and the database. Yet, such transformations are never smooth. For one, scalability is a big issue. And of course legal aspects are never simple.'</p> <p>But it is not a question of <i>if</i> web sites become web services, but <i>when</i> and <i>how</i>. APIs are a more controlled, cleaner and altogether preferred way of becoming a web service. However, when APIs are not avaliable or sufficient, scraping is bound to continue and expand. As always, time will be best judge; but in the meanwhile we turn to you for feedback and stories about how <i>your</i> businesses are preparing for 'web 3.0'.</p> </cite> </blockquote> <p> We are hitting a little problem re. Web 3.0 and Web 2.0, naturally :-) Web 2.0 is one of several (present and future) <a href="http://www.openlinksw.com/blog/~kidehen/?id=1037">Dimensions of Web Interaction</a> that turns Web Sites into Web Services Endpoints; <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=web+dimensions">a point I've made repeatedly</a> [<a href="http://www.readwriteweb.com/archives/points_of_prese.php">1</a>] [<a href="http://www.openlinksw.com/blog/~kidehen/?date=2005-10-04">2</a>] [<a href="http://en.wikipedia.org/w/index.php?title=Web_2.0&oldid=11544998">3</a>] [<a href="http://en.wikipedia.org/w/index.php?title=Web_2.0&oldid=11679210">4</a>] across the blogosphere, in addition to my early futile attempts to make the <a href="http://en.wikipedia.org/wiki/Web_2">Wikipedia's Web 2.0 article</a> meaningful (circa 2005), as per the <a href="http://en.wikipedia.org/wiki/Talk:Web_2.0/Archive_1">Wikipedia Web 2.0 Talk Page </a>excerpt below:</p> <blockquote> <cite><p>Web 2.0 is a web of executable endpoints and well formed content. The executable endpoints and well formed content are accessible via URIs. Put differently, Web 2.0 is a web defined by URIs for invoking Web Services and/or consuming or syndicating well formed content.</p> <p>Hopefully, someone with more time on their hands will expand on this ( I am kinda busy)</p>. <p>BTW - Web 2.0 being a platform doesn't distinguish it in anyway from Web 1.0. They are both platforms, the difference comes down to platform focus and mode of experience.</p> </cite> </blockquote> <p> <a href="http://en.wikipedia.org/wiki/Web_3.0">Web 3.0</a> is about <a href="http://www.openlinksw.com/blog/~kidehen/?id=1030">Data Spaces</a>: Points of Semantic Web Presence that provide granular access to Data, Information, and Knowledge via <a href="http://en.wikipedia.org/wiki/Conceptual_schema">Conceptual Data Model</a> oriented Query Languages and/or APIs.</p> <p>The common denominator across all the current and future Web Interaction Dimensions is HTTP. While their differences are as follows:</p> <ul> Web 1.0 - Browser (HTTP + (X)HTML) </ul> <ul> Web 2.0 - Presence (Web Service Endpoints for REST or SOAP over HTTP) </ul> <ul>Web 3.0 - Presence (Query Languages, <a href="http://en.wikipedia.org/wiki/Database_model">Data Models</a>, and HTTP based Query Oriented Web Service Endpoints) </ul> <p>Examples of Web 3.0 Infrastructure:</p> <ol> <li>Query Languages: <a href="http://www.w3.org/TR/rdf-sparql-query/">SPARQL</a>, <a href="http://code.google.com/apis/base/query-lang-spec.html">Googlebase Query Language</a>, <a href="http://developers.facebook.com/documentation.php?v=1.0&doc=fql">Facebook Query Language</a> (FQL), and many others to come</li> <li>Query Language aligned Web Services (Query Services): <a href="http://www.w3.org/TR/rdf-sparql-protocol/">SPARQL Protocol</a>, <a href="http://code.google.com/apis/gdata/overview.html#About">GData</a>, or REST style Web services such as<a href="http://developers.facebook.com/documentation.php?v=1.0&method=fql.query"> Facebook's service for FQ</a>L.</li> <li>Data Models: Concrete Conceptual Data Model (which RDF happens to deliver for Web Data)</li> </ol> <p>Web 3.0 is not purely about Web Sites becoming Web Services endpoints. It is about the "M" (Data Model) taking it's place in the <a href="http://en.wikipedia.org/wiki/Model-view-controller">MVC pattern</a> as applied to the Web Platform.</p> <p>I will repeat myself yet again: </p> <blockquote> <cite>The Devil is in the Details of the Data Model. Data Models make or break everything. You ignore data at your own peril. No amount of money in the bank will protect you from Data Ignorance! A bad Data Model will bring down any venture or enterprise, the only variable is time (where time is directly related to your increasing need to obtain, analyze, and then act on data, over repetitive operational cycles, that have ever decreasing intervals). </cite> </blockquote> <p>This applies to the Real-time enterprise of Information and/or knowledge workers and Real-time Web Users alike.</p> <p>BTW -<a href="http://www.youtube.com/v/xHWTLA8WecI"> Data Makes Shifts Happen</a> (spotter: <a href="http://www.vecosys.com">Sam Sethi</a>). </p>
Web Databases on the rise
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-03-09#1152
2007-03-09T18:07:43Z
2007-03-09T12:56:01-05:00
<p>Courtesy of <a href="http://blogs.sun.com/bblfish/">Henry Story</a>'s post: <a href="http://blogs.sun.com/bblfish/entry/metaweb_a_semantic_wiki">O'Reilly groks the Semantic Web</a>.</p> <p> Web 2.0 commentators such as <a href="http://www.techcrunch.com/2007/03/09/this-is-cool-unless-it-achieves-consciousness-and-kills-us-all">Mike Arrington</a>, and as mentioned above,<a href="http://radar.oreilly.com/archives/2007/03/freebase_will_p_1.html">Tim O'Reilly</a>, both blogged about the imminent release of <a href="http://www.freebase.com">Freebase</a> earlier today. Although I haven't looked at this database yet, it is crystal clear to me that it is one of many Web Databases to come. Others that I am personally familiar with, and involved in, include: <a href="http://dbpedia.org">DBpedia</a> (Wikipedia as a true Database) and Zitgist (soon to be unveiled).</p> <p>All of these databases mark the crystallization of the "<a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q='data%20web'&type=text&output=html">Data Web</a>" and the imminence of what is increasingly referred to as Web 3.0.</p> <p>I certainly hope that all web 3.0 Database Providers keep the data Open, adhere to <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData">Web Best Practice recipes for sharing and publishing data</a>, and generally make the process of data, information, and knowledge discovery via the Web much easier.</p>
Our Basic Human Instincts
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2007-02-24#1143
2007-02-24T01:03:38Z
2007-02-23T19:55:49-05:00
<p>I just overheard the following dialog between my six year old son and his play date:</p> <blockquote> <pre> Play Date: What is that thing on the Wall? My Son: Security Alarm Play Date: How does it work My Son: If you click on that top button and then open the door, I will have to enter a code when we come back in or the alarm will go off Play Date: What is the code? My Son: I can't tell you that! Play Date: Why not? My Son: You might come and steal something from our house! Play Date: No I won't! My Son: Well, you might tell someone that might come and steal something from our house! or that person could tell someone who could tell someone that would steal from our house</pre></blockquote> <p>LOL!! of course! At the same time wondering, how come a majority of adults don't quite see the need for granular access to Web Data in a manner that enables computers and humans to collectively arrive at similar decisions? </p> <p>Putting Data in context en route to producing actionable knowledge is a transient endeavor that engages a myriad of human senses. We demonstrate comprehension of this fact in our daily existence as social creatures (at a very early age as depicted above). That said, we seem to forget this fact when engaging the Web: If we can't see it then it can't be valuable.</p> <blockquote> <p>BTW - I just received a ping about the "<a href="http://www.flickr.com/photos/route79/399029535/">Sensory Web</a>" (which is just another way of describing a Data Driven Web experience from my vantage point.)</p> </blockquote> <p>In the popular M-V-C pattern you don't see the "M", but the "M" will kill you if you get it wrong (it is the FORCE)! Coming to think about it, the pattern could have been coined: V-C-M or C-M-V, but isn't for obvious reasons :-)</p> <p>RDF is the vehicle that enables us tap into the Data aspect of the Web. We started off with pages of blurb linked via hypertext (Web 1.0) and then looked to "Keywords" for some kind of data access; we then isolated some "Verbs" and discovered another dimension of Web Interaction (Web 2.0) but looked to these "Verbs" for data access which left us with Mashups; and now we are starting to extract "Nouns" and "Adjectives" from sentences (Subject, Predicate, Object - Triples) associated with resources on the Web (Data Web / Web 3.0 / Semantic Web Layer 1) which provides a natural data access substrate for <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=meshups&type=text&output=html">Meshups</a> (natural joining of disparate data from a plethora of data sources) while providing the foundation layer for the <a href="http://en.wikipedia.org/wiki/Semantic_Web">Semantic Web</a>.</p> <p>For those who need use-cases that demonstrate tangible value re. the Semantic Web, here are some projects to note courtesy of the <a href="http://www.w3.org/2001/sw/sweo/">Semantic Web Education and Outreach</a> (SWEO) interest group: </p> <ol> <li> <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/FOAFWhitelisting">FOAF based White-lists</a> - Attacking SPAM </li> <li> <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData">Open Data Access and Linking for the Data Web</a> - Data Integration and Generation effort that creates a cluster of RDF instance data from a myriad of data sources relating to every day things such as: People, Places, Events, Projects, Discussions, Music, Books, and other things </li> <li> <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/PowderExtension">Content Labeling</a> - Protecting our kids on the Web amongst other matters relating to knowledge about data sources </li> <li> <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects">Others..</a> </li> </ol> Related posts: <ol> <li> <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=rdf%20data%20integration&type=text&output=html">Data Web and Global Data Integration & Generation Effort</a> </li> <li> <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q='data%20web'&type=text&output=html">Previous Data Web posts</a>.</li> </ol>
Contd: Web 3.0 Commentary etc..
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-11-24#1090
2006-11-24T15:55:21Z
2006-11-24T13:30:08.000001-05:00
<p>This post is part contribution to the general Web 3.0 / Data-Web / Semantic Web discourse, and part experiment / demonstration of the Data Web.</p> <p>I came across a pretty deep comments trail about the aforementioned items on <a href="http://avc.blogs.com">Fred Wilson's blog</a> (aptly titled: A VC) under the subject heading: <a href="http://avc.blogs.com/a_vc/2006/11/web_30_is_the_s.html">Web 3.0 Is The Semantic Web.</a> </p> <p>Contributions to the general Semantic Web discourse by way of responses to valuable questions and commentary contributed by a Semantic Web skeptic (Ed Addison who may be this <a href="http://www.csee.umbc.edu/cikm/1998/addison-abstract.html">Ed Addison according to Google</a>):</p> <p></p> <blockquote>Ed, Responses to your points re. Semantic Web Matrialization: <ul> << 1) ontologies can be created and maintained by text extractors and crawlers" >> <p>Ontologies will be developed by Humans. This process has already commenced and far more landscape has been covered that you may be aware of. For instance, there is an Ontology for Online Communities with Semantics factored in. More importantly, most Blogs, Wikis, and other "points of presence" on the Web are already capable of generating Instance Data for this Ontology by way of the underlying platforms that drive these things. The Ontology is called: SIOC (<a href="http://sioc-project.org">Semantically-Interlinked Online Communities</a>).</p> </ul> <ul> << 2) the entire web can be marked up, semantically indexed, and maintained by spiders without human assistance >> <p>Most of it can, and already is :-) Human assistance should, and would, be on an "exception basis" a preferred use of human time (IMHO). We do not need to annotate the Web manually when this labor intensive process can be automated (see my earlier comments).</p> </ul> <ul> << 3) inference over the semantic web does not require an extremely deep heuristic search down multiple, redundant, cyclical pathways with many islands that are disconnected >> <p>When you have a foundation layer of RDF Data (generated in the manner I've discussed above), you then have a substrate that's far more palatable to Intelligent Reasoning. Note, the Semantic Web is made of many layers. The critical layer at this juncture is the Data-Web (Web of RDF Data). Note, when I refer to RDF I am not referring to RDF/XML the serialization format, I am referring to the Data Model (a Graph).</p> </ul> <ul> << 4) the web becomes smart enough to eliminate websites or data elements that are incorrect, misleading, false, or just plain lousy >> <p>The Semantic Web vision is not about eliminating Web Sites (The Hypertext-Document-Web). It is simply about adding another dimension of interaction to the Web. This is just like the Services-Web dimension as delivered by Web 2.0.</p> We are simply evolving within an innovation continuum. There is no mutual exclusivity about any of the Web Dimensions since they collectively provide us with a more powerful infrastructure for building and exploiting "collective wisdom". </ul> </blockquote> <p>As for the Data-Web experiment part of this post, I would expect to see this post exposed as another contribution to the Data-Web via the <a href="http://pingthesemanticweb.com">PingTheSemanticWeb</a> notification service :-) Implying, that all the relevant parts of this conversation are in a format (Instance Data for the <a href="http://rdfs.org/sioc/spec/">SIOC Ontology</a>) that is available for further use in a myriad of forms.</p>
Web Me2.0 -- Exploding the Myth of Web 2.0
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-11-15#1081
2006-11-15T23:17:36Z
2006-11-16T16:11:46-05:00
<p> <a href="http://novaspivack.typepad.com/nova_spivacks_weblog/">Nova Spivack</a> provides poignant insights into the recent Web 2.0 vs Web 3.0 brouhaha which I've excerpted below: </p> <blockquote> <a href="http://novaspivack.typepad.com/nova_spivacks_weblog/2006/11/web_me20_explod.html">Web Me2.0 -- Exploding the Myth of Web 2.0</a>: <p>"Many people have told me this week that they think 'Web 2.0' has not been very impressive so far and that they really hope for a next-generation of the Web with some more significant innovation under the hood -- regardless of what it's called. A lot of people found the Web 2.0 conference in San Francisco to be underwhelming -- there was a lot of self-congratulation by the top few brands and the companies they have recently bought, but not much else happening. Where was all the innovation? Where was the focus on what's next? It seemed to be a conference mainly about what happened in the last year, not about what will happen in the coming year. But what happened last year is already so 'last year.' And frankly Web 2.0 still leaves a lot to be desired. The reason Tim Berners-Lee proposed the Semantic Web in the first place is that it will finally deliver on the real potential and vision of the Web. Not that today's Web 2.0 sucks completely -- it only sort of sucks. It's definitely useful and there are some nice bells and whistles we didn't have before. But it could still suck so much less!"</p> </blockquote> <p>Web 2.0 is a (not was) a piece of the overall Web puzzle. The Data Web (so called Web 3.0) is another critical piece of this puzzle, especially as it provides the foundation layer (Layer 1) of the Semantic Web.</p> <p>Web 2.0 was never about "Open Data Access", "Flexible Data Models", or "Open World" meshing of disparate data sources built atop disparate data schemas (see: <a href="http://www.openlinksw.com/blog/~kidehen/?id=1032">Web 2.0's Open Data Access Conundrum</a>). It was simply about "Execution and APIs". I already written about "Web Interaction Dimensions", but you call also look at the relationship of the currently perceived dimensions through the M-V-C programming pattern: </p> <ol> <li>Viewer (V) - Web 1.0 (Interaction, Dimension 1 - Interactive-Web)</li> <li>Controller (C) - Web 2.0 (Services, Dimension 2 - Services-Web which is about Execution & Application Logic; SOA outside/in-front-of the Firewall for Enterprise 2.0 crowd)</li> <li>Model (M) - Web 3.0 (Data, Dimension 3 - Data-Web which is about data model dexterity and open data access)</li> </ol> <p>Another point to note, Social Networking is hot, but nearly every social network that I know (and I know and use most of them) suffers from an impedance mismatch between the service(s) they provide (social networks) and their underlying data models (in many cases Relational as opposed to Graph). Networks are about Relationships (N-ary) and your cannot effectively exploit the deep potential of: "Network Effects" (Wisdom of Crowds, Viral Marketing etc..) without a complimentary data model, you simply can't.</p> <p>Finally, the Data Web is already here, I promised a long time ago (Internet Time) that the manifestation of the Semantic Web would occur unobtrusively, meaning, we will wake up one day and realize we are using critical portions of the Semantic Web (i.e. Data-Web) without even knowing it. Guess what? It's already happening. Simple case in point, you may have started to notice the emergence of <a href="http://rdfs.org/sioc/spec/">SIOC</a> gems in the same way you may have observed those RSS 2.0 gems at the dawn of Web 2.0. What I am implying here is that the real question we should be asking is: Where is the Semantic Web Data? And how easy or difficult will it be to generate? And where are the tools? My answers are presented below:</p> <p> </p> <ol> <li> <a href="http://pingthesemanticweb.com/">Pingthesemanticweb.com</a> - Semantic Web Data Source Lookup & Tracking Service</li> <li> <a href="http://swoogle.umbc.edu/">Swoogle </a>- Semantic Web Ontology Location Service</li> <li> <a href="http://esw.w3.org/topic/RdfAndSql">Semantic Web Solutions for Generating RDF Data from SQL Data</a> </li> <li> <a href="http://esw.w3.org/topic/SemanticWebTools">Semantic Web Solutions Directory</a> </li> <li> <a href="http://sioc-project.org/">SIOC Project</a> - Semantically-Interlinked Online Communities Ontology, a grassroots effort that provides a critical bridge between Web 2.0 and the Data-Web. For instance, existing Web 2.0 application profiles such as; Blogs, Wikis, Feed Aggregators, Content Managers, Discussion Forums etc.. are much closer to the Data-Web than you may think :-) </li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/">Virtuoso</a> - our <a href="http://en.wikipedia.org/wiki/Virtuoso_Universal_Server">Universal Server</a> for the Data-Web</li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/OdsIndex">OpenLink Data Spaces</a> (ODS) - our SIOC based platform for transparent incorporation of the Data-Web into Web 1.0 and Web 2.0</li> </ol> <p>Next stop, less writing, more demos, these are long overdue! At least from my side of the fence :-) I need to produce a little step-by-guide oriented screencasts that demonstrates how Web 2.0 meshes nicely with the Data-Web.</p> <p>Here are some (not so end-user friendly) examples of how you can use <a href="http://www.w3.org/TR/rdf-sparql-query/">SPARQL</a> (Data-Web's Query Language) to query Web 2.0 Instance Data projected through the SIOC Ontology:</p> <p> </p> <ol> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Weblog%20Data%20Space">Weblog Data Query</a> </li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Wiki%20Data%20Space">Wiki Data Query</a> </li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Feeds%20/%20Subscriptions%20Data%20Space%20(Feed%20Aggregation)">Aggregated Feeds Data Query</a> - (RSS 1.0, RSS 2.0, Atom etc)</li> <li a="a" href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Bookmarks%20Data%20Space">Shared Bookmarks Data Space</li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Briefcase%20Applications%20Data%20Space">Web Filesystem Data Query</a> - (Briefcase - Virtual Spotlight of sorts)</li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Photo%20Gallery%20Data%20Space">Photo Gallery Data Query</a> (this could be data from Flickr etc..)</li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Discussion%20/%20Conversation%20Data%20Space">Discussion Data Query</a> (e.g. Blog posts comments)</li> <li> <a href="http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef#Generic%20Data%20Space%20Queries">Data Queries across different Data Spaces</a> - combining data from Wikis, Blogs, Feeds, Photos, Bookmarks, Discussions etc..</li> </ol> <p>Note: You can use the online SPARQL Query Interface at: http://demo.openlinksw.com/isparql.</p> <p> </p> <p> Other Data-Web Technology usage demos include:</p> <p> </p> <ol> <li> <a href="http://www.w3.org/2005/ajar/tab">TimBL's Tabulator</a> - A Data-Web Browser</li> <li> <a href="http://sites.wiwiss.fu-berlin.de/suhl/bizer/ng4j/semwebclient/#examples">Semantic Web Client Library</a> - <a href="http://www.w3.org/TR/rdf-concepts/">RDF</a> Data Drill Down Demos using SPARQL</li> <li> <a href="http://sioc-project.org/firefox">Semantic Radar</a> - A Firefox plug-in for auto-discovering SIOC Instance Data</li> <li> <a href="http://www.talkdigger.com/">Talk Digger</a> - SIOC based Web Conversation Tracker</li> </ol>
Web 2.0 vs Web 3.0 Brouhaha!
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-11-14#1080
2006-11-14T00:35:12Z
2008-09-04T23:00:54-04:00
<p>It's kind of ironic to see what has emerged after <a href="http://iswc2006.semanticweb.org/" id="link-id12171fc0">ISWC 2006</a> and the <a href="http://web2con.com/" id="link-id10fff940">Web 2.0 Summit</a>. From my vantage point, it appears as though the <a href="http://dbpedia.org/resource/World_Wide_Web">Web</a> 2.0 event inadvertently (albeit beneficially) left its attendees looking for the next big thing re. the Web Innovation Continuum as exemplified by the <a href="http://www.nytimes.com/2006/11/12/business/12web.html?ei=5094&en=a34a6306f48166fb&hp=&ex=1163394000&partner=homepage&pagewanted=all" id="link-id145eb180">"Web 3.0" meme from the New York Times (NYT)</a> which triggered the current "Web 2.0 vs Web 3.0 Brouhaha".</p> <p>Amongst the numerous comments about this subject, I felt most compelled to respond to the commentary from Tim O'Reilly (based on his proximity to Web 2.0 etc..) in relation to his view that the NYT's Web 3.0 = Collective Intelligence Harnessing aspect of his <a href="http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html" id="link-id10b00010">Web 2.0 meme</a>. </p> <p>My response is dumped semi-verbatim below:</p> <blockquote> <p>Tim,</p> <p>A few things:</p> <ol> <li> We are in an innovation continuum </li> <li> The Web as a medium of innovation will evolve forever </li> <li> Different commentators have different views about monikers associated with these innovations</li> <li> To say Web 3.0 (aka the <a href="http://dbpedia.org/resource/Data">Data</a> Web or <a href="http://dbpedia.org/resource/Semantic_Web" id="link-id0xb1aeb88">Semantic Web</a> - Layer 1) is what Web 2.0's collective intelligence is all about is a little inaccurate (IMHO); Web 2.0 doesn't provide "Open Data Access" </li> <li> Web 2.0 is a "Web of Services" primarily, a dimension of "Web Interaction" defined by interaction with Services </li> <li> Web 3.0 ("Data Web" or "Web of Databases" or "<a href="http://dbpedia.org/resource/Semantic_Web">Semantic Web</a> - Layer 1") is a Web dimension that provides "Open Data Access" that will be exemplified by the transition from "Mash-ups" (brute force data joining) to "Mesh-ups" (natural data joining) </li> </ol> <p> The original "Web of Hypertext" or "Interactive Web", the current "Web of Services", and the emerging "Data Web" or "Web of Databases" collectively provide dimensions of interaction in the innovation continuum called the Web. </p> <p> There are many more dimensions to come. Monikers come and go, but the retrospective "Long Shadow" of Innovation is ultimately timeless.</p> <p> "Mutual Inclusivity" is a critical requirement for truly perceiving these "<a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&q=web%20dimensions&type=text&output=html" id="link-id10de2178">Web Interaction Dimensions</a>" ("Participation" if I recall). "Mutual Exclusivity" on the other hand, simpy leads to obscuring reality with Versionitis as exemplified by the ongoing: Web 1.0 vs 2.0 vs 3.0 debates.</p> </blockquote> <p>BTW - I enjoyed reading <a href="http://www.roughtype.com/archives/2006/11/welcome_web_30.php" id="link-id1855a380">Nick Carr's take on the Web 3.0 meme</a>, especially his "tongue in cheek" power-grab for the rights to all "Web 3.0" Conferences etc. :-) </p>
Virtuoso's SQL Schema to RDF Ontology Mapping Language (1.0)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-10-18#1064
2006-10-18T22:18:00Z
2006-11-17T18:24:25-05:00
<p>A new technical white paper about our declarative language for SQL Schema to RDF Ontology Mapping has just been published.</p> <h2>What is this?</h2> <p>A declarative language adapted from SPARQL's graph pattern language (N3/Turtle) for mapping SQL Data to RDF Ontologies. We currently refer to this as a Graph Pattern based RDF VIEW Definition Language.</p> <h2>Why is it important?</h2> <p>It provides an effective mechanism for exposing existing SQL Data as virtual RDF Data Sets (Graphs) negating the data duplication associated with generating physical RDF Graphs from SQL Data en route to persistence in a dedicated Triple Store. </p> <p>Enterprise applications (traditional and web based) and most Web Applications (Web 1.0 and Web 2.0) sit atop relational databases, implying that SQL/RDF model and data integration is an essential element of the burgeoning "Data Web" (Semantic Web - Layer 1) comprehension and adoption process.</p> <p>In a nutshell, this is a quick route for non disruptive exposure of existing SQL Data to SPARQL supporting RDF Tools and Development Environments.</p> <h2>How does it work?</h2> <h3>RDF Side</h3> <ol> <li>locate one or more Ontologies (e.g FOAF, SIOC, AtomOWL, SKOS etc.) that effectively defines the Concepts (Classes) and Terms (Predicates) to be exposed via your RDF Graph</li> <li>Using the Virtuoso's RDF View Definition Language declare a International Resource Identifier (or URI) for your Graph. Example:<pre>CREATE GRAPH IRI("http://myopenlink.net/dataspace")</pre> </li> <li>Then create Classes (Concepts), Class Properties/Predicates (Memb), and Class Instances (Inst) for the new Graph. Example: <pre>CREATE IRI CLASS odsWeblog:feed_iri "http://myopenlink.net/dataspace/kidehen/weblog/MyFeeds" ( in memb varchar not null, in inst varchar not null)</pre> </li> </ol> <h3>SQL Side</h3> <ol> <li>If Virtuoso isn't your SQL Data Store, Identify the ODBC or JDBC SQL data source(s) containing the SQL data to be mapped to RDF and then link the relevant tables into Virtuoso's Virtual DBMS Layer</li> <li>Then use the RDF View Definition Language's graph pattern feature to generate SQL to RDF Mapping Template for your Graph. As shown in this <a href="http://www.usnet.private:8889/wiki/main/Main/VOSSQLRDF#MappingOdsBlogToAtomOwlExample">ODS Weblog -> AtomOWL Mapping example</a>.</li> </ol>
Dimensions of the Web
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-09-08#1037
2006-09-08T22:11:00Z
2006-11-12T18:55:54.000001-05:00
<p>I have just watched a pretty nifty presentation (courtesy of <a href="http://blogs.sun.com/bblfish/entry/the_10_dimensions_of_reality">Babelfish</a>) about <a href="http://www.tenthdimension.com/flash2.php">the 10 dimensions of our existence</a> (a 'la <a href="http://en.wikipedia.org/wiki/String_theory">String Theory</a>) when it dawned on me that similar thinking can be applied to the Web :-)</p> <il> </il> <ol> Dimension 1 = Interactive Web (Visual Web of HTML based Sites aka Web 1.0) </ol> <ol> Dimension 2 = Services Web (Presence based Web of Services; a usage pattern commonly referred to as Web 2.0) </ol> <ol> Dimension 3 = Data Web (Presence and Open Data Access based Web of Databases aka Semantic Web layer 1) </ol> <ol> Dimension 4 = Ontology Web (Intelligent Agent palatable Web aka Semantic Web layer 2)</ol> <ol> .... </ol> <p>Hopefully, I can expand further :-)</p>
Web 2.0's Open Data Access Conundrum (Update)
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-09-05#1034
2006-09-05T21:02:00Z
2006-11-16T16:11:45-05:00
<p> Open Data Access and Web 2.0 have a very strange relationship that continues to blur the lines of demarcation between where Web 2.0 ends and where Web.Next (i.e Web 3.0, Semantic/Data Web, Web of Databases etc.) starts. But before I proceed, let me attempt to define Web 2.0 one more time: </p> <p style="text-align: center;"> <em>A phase in the evolution web usage patterns that emphasizes Web Services based interaction between âWeb Usersâ and âPoints of Web Presenceâ over traditional âWeb Usersâ and âWeb Sitesâ based interaction. Basically, a transition from visual site interaction to presence based interaction.</em> </p> <p> BTW - Dare Obasanjo also commented about Web usage patterns in his post titled: <a href="http://www.25hoursaday.com/weblog/PermaLink.aspx?guid=929a7fd6-1dfc-43f4-a549-d2c9fa873655">The Two Webs</a>. Where he concluded that we had a dichotomy along the lines of: HTTP-for-APIs (2.0) and HTTP-for-Browsers (1.0). Which <a href="http://weblog.infoworld.com/udell">Jon Udell</a> evolved into: HTTP-Services-Web and HTTP-Intereactive-Web during our recent <a href="http://weblog.infoworld.com/udell/gems/ju_idehen.mp3">podcast conversation</a>. </p> <p> With definitions in place, I will resume my quest to unveil the aforementioned Web 2.0 Data Access Conundrum: </p> <ul> <li>Emphasis on XML's prowess in the realms of Data and Protocol Modeling alongside Data Representation. Especially as SOAP or REST styles of Web Services and various XML formats (RSS 0.92/1.0/1.1/2.0, Atom, OPML, OCS etc.) collectively define the Web 2.0 infrastructure landscape</li> <li>Where a modicum of Data Access appreciation and comprehension does exist it is inherently compromised by business models that mandate some form of âWalled Gardensâ and âData Silosâ</li> <li>Mash-ups are a response to said âWalled Gardensâ and âData Silosâ . Mash-ups by definition imply combining things that were not built for recombination.</li> </ul> <p> As you can see from the above, Open Data access isn't genuinely compatible with Web 2.0. </p> <p> We can also look at the same issue by way of the popular M-V-C (Model View Controller) pattern. Web 2.0 is all about the âVâ and âCâ with a modicum of âMâ at best (data access, open data access, and flexible open data access are completely separate things). The âCâ items represent application logic exposed by SOAP or REST style web services etc. I'll return to this later in this post. </p> <p> What about Social Networking you must be thinking? Isn't this a Web 2.0 manifestation? Not at all (IMHO). The Web was developed / invented by Tim Berners-Lee to leverage the âNetwork Effectsâ potential of the Internet for connecting <a href="http://www.w3.org/History/1989/Image1.gif">People and Data</a>. Social Networking on the other hand, is simply one of several ways by which construct network connections. I am sure we all accept the fact that connections are built for many other reasons beyond social interaction. That said, we also know that through social interactions we actually develop some of our most valuable relationships (we are social creatures after-all). </p> <p> The Web 2.0 Open Data Access impedance reality is ultimately going to be the greatest piece of tutorial and usecase material for the Semantic Web. I take this position because it is human nature to seek Freedom (in unadulterated form) which implies the following: </p> <ul> <li>Access Data from a myriad of data sources (irrespective of structural differences at the database level)</li> <li>Mesh (not Mash) data in new and interesting ways</li> <li>Share the meshed data with as many relevant people as possible for social, professional, political, religious, and other reasons</li> <li>Construct valuable networks based on data oriented connections</li> </ul> <p> Web 2.0 by definition and use case scenarios is inherently incompatible with the above due to the lack of Flexible and Open Data Access. </p> <p> If we take the definition of Web 2.0 (above) and rework it with an appreciation Flexible and Open Data Access you would arrive at something like this: </p> <p style="text-align: center;"> <em>A phase in the evolution of the web that emphasizes interaction between âWeb Usersâ and âWeb Dataâ facilitated by Web Services based APIs and an Open & Flexible Data Access Model â. </em> </p> <p> <em> <br /> </em>In more succinct form: </p> <p style="text-align: center;"> <em>A pervasive network of people connected by data or data connected by people.</em> </p> <p> <em> <br /> </em>Returning to M-V-C and looking at the definition above, you now have a complete of âMâ which is enigmatic in Web 2.0 and the essence of the Semantic Web (Data and Context). </p> <p> To make all of this possible a palatable Data Model is required. The model of choice is the Graph based RDF Data Model - not to be mistaken for the RDF/XML serialization which is just that, a data serialization that conforms to the aforementioned RDF data model. </p> <p> <strong>The Enterprise Challenge</strong> </p> <p> Web 2.0 cannot and will not make valuable inroads into the the enterprise because enterprises live and die by their ability to exploit data. Weblogs, Wikis, Shared Bookmarking Systems, and other Web 2.0 distributed collaborative applications profiles are only valuable if the data is available to the enterprise for meshing (not mashing). </p> <p> A good example of how enterprises will exploit data by leveraging networks of people and data (social networks in this case) is shown in this nice presentation by Accenture's Institute for High Performance Business titled: <a href="http://www.accenture.com/xdoc/en/AccentureSNA.swf">Visualizing Organizational Change</a>. </p> <p> Web 2.0 commentators (for the most part) continue to ponder the use of Web 2.0 within the enterprise while forgetting the congruency between enterprise agility and exploitation of people & data networks (The very issue emphasized in this original <a href="http://www.w3.org/History/1989/proposal.html">Web vision document by Tim Berners-Lee</a>). Even worse, they remain challenged or spooked by the Semantic Web vision because they do not understand that Web 2.0 is fundamentally a Semantic Web precursor due to Open Data Access challenges. Web 2.0 is one of the greatest demonstrations of why we need the Semantic Web at the current time. </p> <p> Finally, juxtapose the items below and you may even get a clearer view of what I am an attempting to convey about the virtues of Open Data Access and the inflective role it plays as we move beyond Web 2.0: </p> <p> <a href="http://www.w3.org/History/1989/proposal.html">Information Management Proposal </a>- <a href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a> <br /> <a href="http://www.accenture.com/xdoc/en/AccentureSNA.swf">Visualizing Organizational Change</a> - <a href="http://www.accenture.com/Global/High_Performance_Business/default.htm">Accenture Institute of High Performance Business</a> </p>
Data Spaces, Internet Reinvention, and Semantic Web
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-09-04#1033
2006-09-04T21:06:00Z
2007-01-25T16:50:40.000001-05:00
<p> In the last week I've dispatch some thoughts about a number of issues (<a href="http://www.openlinksw.com/blog/%7Ekidehen/index.vspx?page=&id=1030">Data Spaces</a> and <a href="http://www.openlinksw.com/blog/%7Ekidehen/index.vspx?page=&id=1032">Web 2.0's Open Data Access Paradox</a>) that basically equate to the identification of the Web 2.0 to Semantic Web (Data Web, Web of Databases, Web.next etc..) inflection. </p> <p> One of the great things about the moderate “open data access” that we have today (courtesy of the blogosphere) is the fact that you can observe the crystallization of new thinking, and/or new appreciation of emerging ideas, in near real-time. Of course, when we really hit the tracks with the Semantic Web this will be in “conditional real-time” (i.e. you choose and control your scope and sensitivity to data changes etc..). </p> <p> For instance, by way of feed subscriptions, I stumbled upon a series of posts by <a href="http://www.jasonkolb.com/weblog/">Jason Kolb</a> that basically articulate what I (and others who believe in the Semantic Web vision) have been attempting to convey in a myriad of ways via posts and commentary etc.. </p> <p> Here are the links to the 4 part series by Jason: </p> <ol> <li> <a href="http://www.jasonkolb.com/weblog/2006/08/reinventing_the.html">Reinventing the Internet part 1</a> (appreciating “Presence” over traditional “Web Sites”)</li> <li> <a href="http://www.jasonkolb.com/weblog/2006/08/reinventing_the_1.html">Reinventing the Internet part 2</a> </li> <li> <a href="http://www.jasonkolb.com/weblog/2006/08/reinventing_the_2.html">Reinventing the Internet part 3</a> (appreciating and comprehending URIs)</li> <li> <a href="http://www.jasonkolb.com/weblog/2006/08/reinventing_the_3.html">Reinventing the Internet part 4</a> (nice visualization of what “<a href="http://www.openlinksw.com/blog/%7Ekidehen/index.vspx?page=&id=1030">Data Spaces</a>”)</li> <li> <a href="http://www.jasonkolb.com/weblog/2006/09/reinventing_the.html">Reinventing the Internet part 5</a> (everyone will have a Data Space in due course becuase the Internet is really a Federation of Data Spaces)<br /> </li> </ol>
Web 2.0's Open Data Access Conundrum
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-09-02#1032
2006-09-02T16:47:52Z
2006-11-16T15:51:43-05:00
<p> Open Data Access and Web 2.0 have a very strange relationship that continues to blur the lines of demarcation between where Web 2.0 ends and where Web.Next (i.e Web 3.0, Semantic/Data Web, Web of Databases etc.) starts. But before I proceed, let me attempt to define Web 2.0 one more time: </p> <p style="text-align: center;"> <em>A phase in the evolution web usage patterns that emphasizes Web Services based interaction between âWeb Usersâ and âPoints of Web Presenceâ over traditional âWeb Usersâ and âWeb Sitesâ based interaction. Basically, a transition from visual site interaction to presence based interaction.</em> </p> <p> BTW - Dare Obasanjo also commented about Web usage patterns in his post titled: <a href="http://www.25hoursaday.com/weblog/PermaLink.aspx?guid=929a7fd6-1dfc-43f4-a549-d2c9fa873655">The Two Webs</a>. Where he concluded that we had a dichotomy along the lines of: HTTP-for-APIs (2.0) and HTTP-for-Browsers (1.0). Which <a href="http://weblog.infoworld.com/udell">Jon Udell</a> evolved into: HTTP-Services-Web and HTTP-Intereactive-Web during our recent <a href="http://weblog.infoworld.com/udell/gems/ju_idehen.mp3">podcast conversation</a>. </p> <p> With definitions in place, I will resume my quest to unveil the aforementioned Web 2.0 Data Access Conundrum: </p> <ul> <li>Emphasis on XML's prowess in the realms of Data and Protocol Modeling alongside Data Representation. Especially as SOAP or REST styles of Web Services and various XML formats (RSS 0.92/1.0/1.1/2.0, Atom, OPML, OCS etc.) collectively define the Web 2.0 infrastructure landscape</li> <li>Where a modicum of Data Access appreciation and comprehension does exist it is inherently compromised by business models that mandate some form of âWalled Gardensâ and âData Silosâ</li> <li>Mash-ups are a response to said âWalled Gardensâ and âData Silosâ . Mash-ups by definition imply combining things that were not built for recombination.</li> </ul> <p> As you can see from the above, Open Data access isn't genuinely compatible with Web 2.0. </p> <p> We can also look at the same issue by way of the popular M-V-C (Model View Controller) pattern. Web 2.0 is all about the âVâ and âCâ with a modicum of âMâ at best (data access, open data access, and flexible open data access are completely separate things). The âCâ items represent application logic exposed by SOAP or REST style web services etc. I'll return to this later in this post. </p> <p> What about Social Networking you must be thinking? Isn't this a Web 2.0 manifestation? Not at all (IMHO). The Web was developed / invented by Tim Berners-Lee to leverage the âNetwork Effectsâ potential of the Internet for connecting <a href="http://www.w3.org/History/1989/Image1.gif">People and Data</a>. Social Networking on the other hand, is simply one of several ways by which construct network connections. I am sure we all accept the fact that connections are built for many other reasons beyond social interaction. That said, we also know that through social interactions we actually develop some of our most valuable relationships (we are social creatures after-all). </p> <p> The Web 2.0 Open Data Access impedance reality is ultimately going to be the greatest piece of tutorial and usecase material for the Semantic Web. I take this position because it is human nature to seek Freedom (in unadulterated form) which implies the following: </p> <ul> <li>Access Data from a myriad of data sources (irrespective of structural differences at the database level)</li> <li>Mesh (not Mash) data in new and interesting ways</li> <li>Share the meshed data with as many relevant people as possible for social, professional, political, religious, and other reasons</li> <li>Construct valuable networks based on data oriented connections</li> </ul> <p> Web 2.0 by definition and use case scenarios is inherently incompatible with the above due to the lack of Flexible and Open Data Access. </p> <p> If we take the definition of Web 2.0 (above) and rework it with an appreciation Flexible and Open Data Access you would arrive at something like this: </p> <p style="text-align: center;"> <em>A phase in the evolution of the web that emphasizes interaction between âWeb Usersâ and âWeb Dataâ facilitated by Web Services based APIs and an Open & Flexible Data Access Model â. </em> </p> <p> <em> <br /> </em>In more succinct form: </p> <p style="text-align: center;"> <em>A pervasive network of people connected by data or data connected by people.</em> </p> <p> <em> <br /> </em>Returning to M-V-C and looking at the definition above, you now have a complete of âMâ which is enigmatic in Web 2.0 and the essence of the Semantic Web (Data and Context). </p> <p> To make all of this possible a palatable Data Model is required. The model of choice is the Graph based RDF Data Model - not to be mistaken for the RDF/XML serialization which is just that, a data serialization that conforms to the aforementioned RDF data model. </p> <p> <strong>The Enterprise Challenge</strong> </p> <p> Web 2.0 cannot and will not make valuable inroads into the the enterprise because enterprises live and die by their ability to exploit data. Weblogs, Wikis, Shared Bookmarking Systems, and other Web 2.0 distributed collaborative applications profiles are only valuable if the data is available to the enterprise for meshing (not mashing). </p> <p> A good example of how enterprises will exploit data by leveraging networks of people and data (social networks in this case) is shown in this nice presentation by Accenture's Institute for High Performance Business titled: <a href="http://www.accenture.com/xdoc/en/AccentureSNA.swf">Visualizing Organizational Change</a>. </p> <p> Web 2.0 commentators (for the most part) continue to ponder the use of Web 2.0 within the enterprise while forgetting the congruency between enterprise agility and exploitation of people & data networks (The very issue emphasized in this original <a href="http://www.w3.org/History/1989/proposal.html">Web vision document by Tim Berners-Lee</a>). Even worse, they remain challenged or spooked by the Semantic Web vision because they do not understand that Web 2.0 is fundamentally a Semantic Web precursor due to Open Data Access challenges. Web 2.0 is one of the greatest demonstrations of why we need the Semantic Web at the current time. </p> <p> Finally, juxtapose the items below and you may even get a clearer view of what I am an attempting to convey about the virtues of Open Data Access and the inflective role it plays as we move beyond Web 2.0: </p> <p> <a href="http://www.w3.org/History/1989/proposal.html">Information Management Proposal </a>- <a href="http://www.w3.org/People/Berners-Lee/">Tim Berners-Lee</a> <br /> <a href="http://www.accenture.com/xdoc/en/AccentureSNA.swf">Visualizing Organizational Change</a> - <a href="http://www.accenture.com/Global/High_Performance_Business/default.htm">Accenture Institute of High Performance Business</a> </p>
Data Spaces and Web of Databases
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-08-28#1030
2006-08-28T19:38:00Z
2006-09-04T18:58:56.000001-04:00
<p>Note: An updated version of a previously unpublished blog post:</p> <p> Continuing from <a href="http://weblog.infoworld.com/udell/2006/04/28.html">our recent Podcast conversation</a>, Jon Udell sheds further insight into the essence of our conversation via a âStrategic Developerâ column article titled: <a href="http://www.infoworld.com/cgi-bin/redirect?source=rss&url=http://www.infoworld.com/article/06/05/03/77873_19OPstrategic_1.html">Accessing the web of databases</a>. </p> <p> Below, I present an initial dump of a DataSpace FAQ below that hopefully sheds light on the DataSpace vision espoused during my podcast conversation with Jon. </p> <p> What is a DataSpace? <br /> </p> <p>A moniker for Web-accessible atomic containers that manage and expose Data, Information, Services, Processes, and Knowledge. </p> <p> What would you typically find in a Data Space? Examples include: </p> <ul> <li>Raw Data - SQL, HTML, XML (raw), XHTML, RDF etc.<br /> <br /> </li> <li>Information (Data In Context) - XHTML (various microformats), Blog Posts (in RSS, Atom, RSS-RDF formats), Subscription Lists (OPML, OCS, etc), Social Networks (FOAF, XFN etc.), and many other forms of applied XML.</li> </ul> <ul> <li>Web Services (Application/Service Logic) - REST or SOAP based invocation of application logic for context sensitive and controlled data access and manipulation.</li> </ul> <ul> <li>Persisted Knowledge - Information in actionable context that is also available in transient or persistent forms expressed using a Graph Data Model. A modern knowledgebase would more than likely have RDF as its Data Language, RDFS as its Schema Language, and OWL as its Domain Definition (Ontology) Language. Actual Domain, Schema, and Instance Data would be serialized using formats such as RDF-XML, N3, Turtle etc).</li> </ul> <p> How do Data Spaces and Databases differ? <br />Data Spaces are fundamentally problem-domain-specific database applications. They offer functionality that you would instinctively expect of a database (e.g. AICD data management) with the additonal benefit of being data model and query language agnostic. Data Spaces are for the most part DBMS Engine and Data Access Middleware hybrids in the sense that ownership and control of data is inherently loosely-coupled. </p> <p>How do Data Spaces and Content Management Systems differ?<br />Data Spaces are inherently more flexible, they support multiple data models and data representation formats. Content management systems do not possess the same degree of data model and data representation dexterity. </p> <p>How do Data Spaces and Knowledgebases differ?<br />A Data Space cannot dictate the perception of its content. For instance, what I may consider as knowledge relative to my Data Space may not be the case to a remote client that interacts with it from a distance, Thus, defining my Data Space as Knowledgebase, purely, introduces constraints that reduce its broader effectiveness to third party clients (applications, services, users etc..). A Knowledgebase is based on a Graph Data Model resulting in significant impedance for clients that are built around alternative models. To reiterate, Data Spaces support multiple data models. </p> <p> What Architectural Components make up a Data Space? </p> <ul> <li>ORDBMS Engine - for Data Modeling agility (via complex purpose specific data types and data access methods), Data Atomicity, Data Concurrency, Transaction Isolation, and Durability (aka ACID).<br /> <br /> </li> <li>Virtual Database Engine - for creating a single view of, and access point to, heterogeneous SQL, XML, Free Text, and other data. This is all about Virtualization at the Data Access Level.</li> </ul> <ul> <li>Web Services Platform - enabling controlled access and manipulation (via application, service, or protocol logic) of Virtualized or Disparate Data. This layer handles the decoupling of functionality from monolithic wholes for function specific invocation via Web Services using either the SOAP or REST approach.</li> </ul> <br />Where do Data Spaces fit into the Web's rapid evolution?<br />They are an essential part of the burgeoning Data Web / Semantic Web. In short, they will take us from data âMash-upsâ (combining web accessible data that exists without integration and repurposing in mind) to âMesh-upsâ (combining web accessible data that exists with integration and repurposing in mind).<p> Where can I see a DataSpace along the lines described, in action? </p> <p> Just look at my blog, and take the journey as follows: </p> <ul> <li> <a href="http://www.openlinksw.com/blog/%7Ekidehen/">Front Door</a> (Web 1.0)</li> <li>Lounge (Web 2.0) via <a href="http://www.openlinksw.com/GData/127">GData</a> or <a href="http://www.openlinksw.com/weblog/public/search.vspx?blogid=127&type=text&kwds=%27semantic+web%27&OpenSearch">OpenSearch</a> </li> <li>Floor Plan via <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/about.rdf">FOAF</a> or <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com/sioc.rdf">SIOC</a> RDF Data Sets (Graphs)</li> <li>Rest of the house (beyond Web 2.0) sending <a href="http://virtuoso.openlinksw.com/wiki/main/Main/VOSODSSparqlSamples">SPARQL Queries</a> to a <a href="http://myopenlink.net:8890/sparql/">SPARQL Endpoint</a>.<br /> </li> </ul> <p> What about other Data Spaces? </p> <p> There are several and I will attempt to categorize along the lines of query method available: <br />Type 1 (Free Text Search over HTTP): <br />Google, MSN, Yahoo!, Amazon, eBay, and most Web 2.0 plays . </p> <p> Type 2 (Free Text Search and XQuery/XPath over HTTP) <br />A few blogs and Wikis (Jon Udell's and a few others)</p>Type 3 (RDF Data Sets and SPARQL Queryable):<br /> <ul> <li>  <a href="http://esw.w3.org/topic/SIOC/EnabledSites">SIOC enabled sites</a> (aka points of semantic web presence)<br /> </li> <li>  <a href="http://pingthesemanticweb.com/">PingTheSemantic</a> <br /> </li> </ul>Type 4 (Generic Free Text Search, OpenSearch, GData, XQuery/XPath, and SPARQL):<br />Points of Semantic Web presence such as the Data Spaces at: <br /> <ul> <li> <a href="http://www.openlinksw.com/dataspace/kidehen@openlinksw.com">My Blog Data Space</a> (as stated earlier in this post)<br /> </li> <li> <a href="http://myopenlink.net:8890/dataspace/kidehen@openlinksw.com">My General Data Space</a> - (ditto; note that this is currently experimental)<br /> </li> </ul> <p>What About Data Space aware tools?<br /> <br /> </p> <ul> <li>  <a href="http://demo.openlinksw.com/DAV/JS/oat/index.html/">OpenLink Ajax Toolkit </a>- provides Javascript Control level binding to Query Services such as XMLA for SQL, GData for Free Text, OpenSearch for Free Text, SPARQL for RDF, in addition to service specific Web Services (Web 2.0 hosted solutions that expose service specific APIs)</li> <li>  <a href="http://rdfs.org/sioc/firefox">Semantic Radar </a>- a Firefox Extension</li> <li>  <a href="http://pingthesemanticweb.com/">PingTheSemantic</a> - the Semantic Webs equivalent of Web 2.0's weblogs.com</li> <li>  <a href="http://simile.mit.edu/piggy-bank/">PiggyBank</a> - a Firefox Extension</li> </ul> <p> </p>
Web 2.0 Self-Experiment aids Web 3.0 comprehension
http://www.openlinksw.com:443/blog/kidehen@openlinksw.com/blog/?date=2006-07-17#1009
2006-07-17T21:46:42Z
2006-07-18T01:17:43-04:00
<blockquote> <p> <a href="http://vzach.blogspot.com/2006/07/web-20-self-experiment.html">Web 2.0 Self-Experiment</a>: "</p> <blockquote>I shopped for everything except food on eBay. When working with foreign-language documents, I used translations from Babel Fish. (This worked only so well. After a Babel Fish round-trip through Italian, the preceding sentence reads, 'That one has only worked therefore well.') Why use up space storing files on my own hard drive when, thanks to certain free utilities, I can store them on Gmail's servers? I saved, sorted, and browsed photos I uploaded to Flickr. I used Skype for my phone calls, decided on books using Amazon's recommendations rather than 'expert' reviews, killed time with videos at YouTube, and listened to music through customizable sites like Pandora and Musicmatch. I kept my schedule on Google Calendar, my to-do list on Voo2do, and my outlines on iOutliner. I voyeured my neighborhood's home values via Zillow. I even used an online service for each stage of the production of this article, culminating in my typing right now in Writely rather than Word. (Being only so confident that Writely wouldn't somehow lose my work -- or as Babel Fish might put it, 'only confident therefore' -- I backed it up into Gmail files.</blockquote> <a href="http://www.technologyreview.com/read_article.aspx?id=17061&ch=infotech">Interesting article</a>, Tim O'Reilly's response is <a href="http://radar.oreilly.com/archives/2006/07/levels_of_the_game.html">here</a>" <p>(Via <a href="http://vzach.blogspot.com">Valentin Zacharias (Student)</a>.)</p> </blockquote> <p>Tim O'Reilly's response provides the following hierarchy for Web 2.0 based on The what he calls: "Web 2.0-ness":</p> <blockquote> <p>level 3: The application could ONLY exist on the net, and draws its essential power from the network and the connections it makes possible between people or applications. These are applications that harness network effects to get better the more people use them. EBay, craigslist, Wikipedia, del.icio.us, Skype, (and yes, Dodgeball) meet this test. They are fundamentally driven by shared online activity. The web itself has this character, which Google and other search engines have then leveraged. (You can search on the desktop, but without link activity, many of the techniques that make web search work so well are not available to you.) Web crawling is one of the fundamental Web 2.0 activities, and search applications like Adsense for Content also clearly have Web 2.0 at their heart. I had a conversation with Eric Schmidt, the CEO of Google, the other day, and he summed up his philosophy and strategy as "Don't fight the internet." In the hierarchy of web 2.0 applications, the highest level is to embrace the network, to understand what creates network effects, and then to harness them in everything you do.</p> <p> Level 2: The application could exist offline, but it is uniquely advantaged by being online. Flickr is a great example. You can have a local photo management application (like iPhoto) but the application gains remarkable power by leveraging an online community. In fact, the shared photo database, the online community, and the artifacts it creates (like the tag database) is central to what distinguishes Flickr from its offline counterparts. And its fuller embrace of the internet (for example, that the default state of uploaded photos is "public") is what distinguishes it from its online predecessors.</p> <p> Level 1: The application can and does exist successfully offline, but it gains additional features by being online. Writely is a great example. If you want to do collaborative editing, its online component is terrific, but if you want to write alone, as Fallows did, it gives you little benefit (other than availability from computers other than your own.) </p> <p> Level 0: The application has primarily taken hold online, but it would work just as well offline if you had all the data in a local cache. MapQuest, Yahoo! Local, and Google Maps are all in this category (but mashups like housingmaps.com are at Level 3.) To the extent that online mapping applications harness user contributions, they jump to Level 2.</p> </blockquote> <p>So, in a sense we have near conclusive confirmation that Web 2.0 is simply about APIs (typically service specific Data Silos or Walled-gardens) with little concern, understanding, or interest in truly open data access across the burgeoning "<a href="http://www.infoworld.com/article/06/05/03/77873_19OPstrategic_1.html">Web of Databases</a>". Or the<a href="http://www.w3.org/2005/Talks/0623-sb-IEEEStorConf/"> Web of "Databases and Programs"</a> that I prefer to describe as "<a href="http://virtuoso.openlinksw.com/wiki/main/Main/DataSpaceFAQ">Data Spaces</a>"</p> <p>Thus, we can truly begin to conclude that Web 3.0 (Data Web) is the addition of Flexible and Open Data Access to Web 2.0; where the Open Data Access is achieved by leveraging Semantic Web deliverables such as the RDF Data Model and the SPARQL Query Language :-)</p>