BIROn (Birkbeck, University of London) · 2011 · 140 citations · 10 references
Open access
ComputingComputer ScienceInformation SystemsData ManagementDatabasesKnowledge RepresentationDatabase ManagementDescription LogicsFormal OntologyOntology EngineeringQuery ProcessingRelational DatabasesDescription Logic OntologiesDescription Logic ReasoningOntologiesQuery Answering
The use of ontologies for accessing data is one of the most exciting new applications of description logics in databases and other information systems. A realistic way of realising sufficiently scalable ontology-based data access in practice is by reduction to querying relational databases. In this paper, we describe the combined approach, which incorporates the information given by the ontology into the data and employs query rewriting to eliminate spurious answers. We illustrate this approach for ontologies given in the DL-Lite family of description logics and briefly discuss the results obtained for the EL family. 1 Ontology-Based Data Access
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2009 · 495 citations
The combined approach to query answering in DL-Lite
Roman Kontchakov, Carsten Lutz, David Toman et al. · BIROn (Birkbeck, University of London) · 2010 · 174 citations