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dc.contributor.authorKrennwallner, Thomasen
dc.contributor.authorMartello, Alessandraen
dc.contributor.authorPolleres, Axelen
dc.identifier.citationGiovambattista Ianni, Thomas Krennwallner, Alessandra Martello, Axel Polleres "A rule system for querying persistent RDFS data", Proceedings of the 6th European Semantic Web Conference (ESWC 2009), 2009.en
dc.description.abstractWe present GiaBATA, a system for storing, aggregating, and querying Semantic Web data, based on declarative logic programming technology, namely on the dlvhex system, which allows us to implement a fully SPARQL compliant semantics, and on DLVDB, which extends the DLV system with persistent storage capabilities. Compared with off-the-shelf RDF stores and SPARQL engines, we offer more flexible support for rule-based RDFS and other higher entailment regimes by enabling custom reasoning via rules, and the possibility to choose the reference ontology on a per query basis. Due to the declarative approach, GiaBATA gains the possibility to apply well-known logic-level optimization features of logic programming (LP) and deductive database systems. Moreover, our architecture allows for extensions of SPARQL by non-standard features such as aggregates, custom built-ins, or arbitrary rulesets. With the resulting system we provide a flexible toolbox that embeds Semantic Web data and ontologies in a fully declarative LP environment.en
dc.subject.lcshSemantic weben
dc.titleA rule system for querying persistent RDFS dataen
dc.typeDemonstration paperen
dc.local.publisherstatementThe original publication is available at www.springerlink.comen
dc.contributor.funderScience Foundation Irelanden

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