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Invited Talk: Can We Deal with Emergent Knowledge Yet?
(VSE Prague, 2010)
This overview paper briefly describes problems we need to tackle if we want to meaningfully and efficiently process emergent knowledge. By this term we essentially mean knowledge continually emerging in a bottom-up manner ...
On the efficiency of joining group patterns in SPARQL queries
(2010)
In SPARQL, conjunctive queries are expressed by using shared variables across sets of triple patterns, also called basic graph patterns. Based on this characterization, basic graph patterns in a SPARQL query can be ...