Ontology-based data access using views

Authors:
Juan F. Sequeda;Marcelo Arenas;Daniel P. Miranker
Affiliations:
-;Department of Computer Science, PUC, Chile;-
Venue:
RR'12 Proceedings of the 6th international conference on Web Reasoning and Rule Systems
Year:
2012

Citing 3
Cited 0

Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family

Journal of Automated Reasoning
Efficient Query Answering for OWL 2

ISWC '09 Proceedings of the 8th International Semantic Web Conference
The MASTRO system for ontology-based data access

Semantic Web

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Abstract

The OWL 2 QL profile, which is based on DL-LiteR, has been designed so that query answering is possible using relational database technology via query rewriting. Unfortunately, given a query Q posed in terms of an OWL 2 QL ontology O, the size of the rewritten query, Qo, which can be evaluated directly on the relational database, is worst case exponential w.r.t the size of Q and O [1]. This means that the computation and evaluation of Qo can be costly. Recent research focuses on creating rewriting algorithms that generates Qo with a smaller size [3].