]> 2012-02-09T20:47:30-05:00 Dave Reynolds Dave Dave Reynolds Reynolds Efficient RDF Storage and Retrieval in Jena2 Jena: implementing the semantic web recommendations Semantic information portals SPARQL basic graph pattern optimization using selectivity estimation Rule languages for interoperability: HP Position paper Has author Has identifier Foaf:surname Foaf:name Foaf:firstName Anonymous.png Foaf:depiction Person