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Efficient Query Answering Against Dynamic RDF Databases

A promising method for efficiently querying RDF data consists of translating SPARQL queries into efficient RDBMS-style operations. However, answering SPARQL queries requires handling RDF reasoning, which must be implemented outside the relational engines that do not support it. The authors introduce the DataBase (DB) fragment of RDF, going beyond the expressive power of previously studied RDF fragments. They devise novel sound and complete techniques for answering Basic Graph Pattern (BGP) queries within the DB fragment of RDF, exploring the two established approaches for handling RDF semantics, namely reformulation and saturation.

Provided by: Association for Computing Machinery Topic: Data Management Date Added: Mar 2013 Format: PDF

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