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Tableaux with Global Caching for Checking Satisfiability of a Knowledge Base in the Description Logic SH
2010 (English)In: Transactions on Computational Collective Intelligence, ISSN 0302-9743, Vol. 1, no 1, 21-38Artikel i tidskrift (Refereed) Published
Abstract [en]

Description logics (DLs) are a family of knowledge representation languages which can be used to represent the terminological knowledge of an application domain in a structured and formally well-understood way. DLs can be used, for example, for conceptual modeling or as ontology languages. In fact, OWL (Web Ontology Language), recommended by W3C, is based on description logics. In the current paper we give the first direct ExpTime (optimal) tableau decision procedure, which is not based on transformation or on the pre-completion technique, for checking satisfiability of a knowledge base in the description logic SH. Our procedure uses sound global caching and can be implemented as an extension of the highly optimized tableau prover TGC to obtain an efficient program for the mentioned satisfiability problem.

Place, publisher, year, pages
Springer, 2010. Vol. 1, no 1, 21-38
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-65964 (URN)10.1007/978-3-642-15034-0_2 (DOI)978-3-642-15033-3 (ISBN)oai:DiVA.org:liu-65964 (OAI)
Available from2011-02-28 Created:2011-02-28 Last updated:2014-06-11

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Nguyen, Anh LinhSzalas, Andrzej
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University of WarsawKPLAB - Knowledge Processing LabThe Institute of Technology
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