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WORL : A Web Ontology Rule Language
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- Cao, Son Thanh (author)
- Vinh Univ, Vietnam
-
- Nguyen, Linh Anh (author)
- Institute of Informatics, Warsaw University
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- Szalas, Andrzej, 1956- (author)
- Linköpings universitet,KPLAB - Laboratoriet för kunskapsbearbetning,Tekniska högskolan
- (creator_code:org_t)
- IEEE, 2011
- 2011
- English.
- In: Proceedings of the 3rd International Conference on Knowledge and Systems Engineering (KSE). - : IEEE. - 9781457718489 ; , s. 32-39
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- We develop a Web ontology rule language, called WORL, which combines a variant of OWL 2 RL with eDatalog-with-negation. We disallow the features of OWL 2 RL that play the role of constraints (i.e., the ones that are translated to negative clauses), but allow additional features like negation, the minimal number restriction and unary external checkable predicates to occur in the left hand side of concept inclusion axioms. Some restrictions are adopted to guarantee a translation into eDatalog-with-negation. We also develop the well-founded semantics for WORL and the standard semantics for stratified WORL (SWORL) via translation into eDatalog-with-negation. Both WORL and SWORL have PTime data complexity. In contrast to the existing combined formalisms, in WORL and SWORL negation in concept inclusion axioms is interpreted using nonmonotonic semantics.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
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- kon (subject category)
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