Combining Description Logics, Description Graphs, and Rules.

Recent practical experience with description logics (DLs) has revealed that their expressivity is often insufficient to accurately describe structured objects-objects whose parts are interconnected in arbitrary, rather than tree-like ways. To address this problem, we propose an extension of DL langu...

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Bibliographic Details
Main Author: Motik, B
Other Authors: Croitoru, M
Format: Journal article
Language:English
Published: Springer 2010
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author Motik, B
author2 Croitoru, M
author_facet Croitoru, M
Motik, B
author_sort Motik, B
collection OXFORD
description Recent practical experience with description logics (DLs) has revealed that their expressivity is often insufficient to accurately describe structured objects-objects whose parts are interconnected in arbitrary, rather than tree-like ways. To address this problem, we propose an extension of DL languages with description graphs-a modeling construct that can accurately describe objects whose parts are connected in arbitrary ways. Furthermore, to enable modeling the conditional aspects of structured objects, we also incorporate rules into our formalism. We present an in-depth study of the computational properties of such a formalism. In particular, we first identify the sources of undecidability of the general, unrestricted formalism, and then present a restriction that makes reasoning decidable. Finally, we present tight complexity bounds. © 2009 Springer Berlin Heidelberg.
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spelling oxford-uuid:64dbc57c-d8b5-405e-9390-573e7c58d7a12022-03-26T18:21:37ZCombining Description Logics, Description Graphs, and Rules.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:64dbc57c-d8b5-405e-9390-573e7c58d7a1EnglishSymplectic Elements at OxfordSpringer2010Motik, BCroitoru, MFerré, SLukose, DRecent practical experience with description logics (DLs) has revealed that their expressivity is often insufficient to accurately describe structured objects-objects whose parts are interconnected in arbitrary, rather than tree-like ways. To address this problem, we propose an extension of DL languages with description graphs-a modeling construct that can accurately describe objects whose parts are connected in arbitrary ways. Furthermore, to enable modeling the conditional aspects of structured objects, we also incorporate rules into our formalism. We present an in-depth study of the computational properties of such a formalism. In particular, we first identify the sources of undecidability of the general, unrestricted formalism, and then present a restriction that makes reasoning decidable. Finally, we present tight complexity bounds. © 2009 Springer Berlin Heidelberg.
spellingShingle Motik, B
Combining Description Logics, Description Graphs, and Rules.
title Combining Description Logics, Description Graphs, and Rules.
title_full Combining Description Logics, Description Graphs, and Rules.
title_fullStr Combining Description Logics, Description Graphs, and Rules.
title_full_unstemmed Combining Description Logics, Description Graphs, and Rules.
title_short Combining Description Logics, Description Graphs, and Rules.
title_sort combining description logics description graphs and rules
work_keys_str_mv AT motikb combiningdescriptionlogicsdescriptiongraphsandrules