Conjunctive query answering with OWL 2 QL
Kikot, Stanislav and Kontchakov, Roman and Zakharyaschev, Michael (2012) Conjunctive query answering with OWL 2 QL. In: Brewka, G. and Eiter, T. and McIlraith, S.A. (eds.) Principles of Knowledge Representation and Reasoning: Proceedings of the Thirteenth International Conference. California, U.S.: AAAI Press, pp. 275-285. ISBN 9781577355601.
We present a novel rewriting technique for conjunctive query answering over OWL2QL ontologies. In general, the obtained rewritings are not necessarily correct and can be of exponential size in the length of the query. We argue, however, that in most, if not all, practical cases the rewritings are correct and of polynomial size. Moreover, we prove some sufficient conditions, imposed on queries and ontologies, that guarantee correctness and succinctness. We also support our claim by experimental results.
|Item Type:||Book Section|
|School:||Birkbeck Schools and Departments > School of Business, Economics & Informatics > Computer Science and Information Systems|
|Depositing User:||Roman Kontchakov|
|Date Deposited:||23 Oct 2012 09:41|
|Last Modified:||11 Oct 2016 15:26|
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