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Three-Valued Paraconsistent Reasoning for Semantic Web Agents
University of Warsaw.
Linköping University, Department of Computer and Information Science, KPLAB - Knowledge Processing Lab. Linköping University, The Institute of Technology.
2010 (English)In: Proceedings of the 4th International KES Symposium on Agents and Multi-agent Systems – Technologies and Applications (KES-AMSTA), Springer , 2010, 152-162 p.Conference paper (Refereed)
Abstract [en]

Description logics [1] refer to a family of formalisms concentrated around concepts, roles and individuals. They are used in many multiagent and semantic web applications as a foundation for specifying knowledge bases and reasoning about them. One of widely applied description logics is SHIQ [7,8]. In the current paper we address the problem of inconsistent knowledge. Inconsistencies may naturally appear in the considered application domains, for example as a result of fusing knowledge from distributed sources. We define three three-valued paraconsistent semantics for SHIQ, reflecting different meanings of concept inclusion of practical importance. We also provide a quite general syntactic condition of safeness guaranteeing satisfiability of a knowledge base w.r.t. three-valued semantics and define a faithful translation of our formalism into a suitable version of a two-valued description logic. Such a translation allows one to use existing tools and SHIQ reasoners to deal with inconsistent knowledge.

Place, publisher, year, edition, pages
Springer , 2010. 152-162 p.
Lecture Notes in Artificial Intelligence, ISSN 0302-9743 ; 6070
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-65965DOI: 10.1007/978-3-642-13480-7_17ISBN: 978-3-642-13479-1 (print)OAI: diva2:400674
Available from: 2011-02-28 Created: 2011-02-28 Last updated: 2011-03-09

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Szalas, Andrzej
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