Transitivity and Graphs for SQL Virtuoso - Are We Too Clever for Our Own Good? (updated) Social Web Camp (#5 of 5) VLDB 2009 Web Scale Data Management Panel (5 of 5) European Commission and the Data Overflow SemData@Sofia Roundtable write-up "The Acquired, The Innate, and the Semantic" or "Teaching Sem Tech" VLDB Semdata Workshop Transaction Semantics in RDF and Relational Models