Efficient Query Answering for OWL 2.

The QL profile of OWL 2 has been designed so that it is possible to use database technology for query answering via query rewriting. We present a comparison of our resolution based rewriting algorithm with the standard algorithm proposed by Calvanese et al., implementing both and conducting an empir...

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Bibliographic Details
Main Authors: Pérez-Urbina, H, Horrocks, I, Motik, B
Other Authors: Bernstein, A
Format: Journal article
Language:English
Published: Springer 2009
Description
Summary:The QL profile of OWL 2 has been designed so that it is possible to use database technology for query answering via query rewriting. We present a comparison of our resolution based rewriting algorithm with the standard algorithm proposed by Calvanese et al., implementing both and conducting an empirical evaluation using ontologies and queries derived from realistic applications. The results indicate that our algorithm produces significantly smaller rewritings in most cases, which could be important for practicality in realistic applications. © Springer-Verlag Berlin Heidelberg 2009.