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A Horn Fragment with PTime Data Complexity of Regular Description Logic with Inverse
Institute of Informatics, University of Warsaw, Warsaw, Poland; Faculty of Information Technology, VNU University of Engineering and Technology, Hanoi, Vietnamn.
Department of Information Technology, Hue University of Sciences, Hue, Vietnam.
Linköping University, Department of Computer and Information Science, Artificial Intelligence and Intergrated Computer systems. Linköping University, The Institute of Technology.
2014 (English)In: VNU Journal of Computer Science and Communication Engineering, ISSN 0866-8612, Vol. 30, no 4, 14-28 p.Article in journal (Refereed) Published
Abstract [en]

We study a Horn fragment called Horn-RegI of the regular description logic with inverse RegI, which extends the description logic ALC with inverse roles and regular role inclusion axioms characterized by finite automata. In contrast to the well-known Horn fragments EL, DL-Lite, DLP, Horn-SHIQ and Horn-SROIQ of description logics, Horn-RegI allows a form of the concept constructor "universal restriction" to appear at the left hand side of terminological inclusion axioms, while still has PTIME data complexity. Namely, a universal restriction can be used in such places in conjunction with the corresponding existential restriction. We provide an algorithm with PTIME data complexity for checking satisfiability of Horn-RegI knowledge bases.

Place, publisher, year, edition, pages
Vietnam National University, Hanoi, Vietnam, 2014. Vol. 30, no 4, 14-28 p.
National Category
Computer and Information Science
URN: urn:nbn:se:liu:diva-120982OAI: diva2:850318
Available from: 2015-09-01 Created: 2015-09-01 Last updated: 2015-09-16Bibliographically approved

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