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dc.contributor.authorWang, Kewenen_US
dc.contributor.authorWang, Zheen_US
dc.contributor.authorTopor, Rodneyen_US
dc.contributor.authorZ. Pan, Jeffen_US
dc.contributor.authorAntoniou, Grigorisen_US
dc.contributor.editorEditor exceeds RIMS limiten_US
dc.date.accessioned2017-04-24T12:54:00Z
dc.date.available2017-04-24T12:54:00Z
dc.date.issued2009en_US
dc.date.modified2010-06-10T22:20:56Z
dc.identifier.refurihttp://iswc2009.semanticweb.org/en_AU
dc.identifier.urihttp://hdl.handle.net/10072/29771
dc.description.abstractForgetting is a useful tool for tailoring ontologies by reducing the number of concepts and roles, while preserving sound and complete reasoning. Some attempts have been made to address the problem of forgetting in some relatively simple description logics (DLs) such as DL-Lite and extended EL . Ontologies in those works are mostly expressed as TBoxes rather than general knowledge bases (KBs). However, the issue of forgetting for general KBs in more expressive ontology languages, such as ALC and OWL DL, is largely unexplored. In particular, the problem of characterizing and computing forgetting is still open. In this paper, we first define semantic forgetting about concepts and roles in ALC ontologies and show several important properties of forgetting in this setting. Unlike the case of DL-Lite, the result of forgetting in an ALC ontology may not exist in general, which makes the problem of how to compute forgetting in ALC more challenging. As a result, we tackle the non-existence of the result of forgetting in ALC ontologies by first investigating forgetting in concept descriptions and then defining and studying a series of approximations to the result of forgetting in ALC ontologies. We show that forgetting in ALC ontologies can be approximated through computing forgetting for concept descriptions. Our algorithms can be embedded into an ontology editor to enhance its ability to manage and apply (large) ontologies.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent46425 bytes
dc.format.extent213581 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherSpringeren_US
dc.publisher.placeBerlinen_US
dc.publisher.urihttp://iswc2009.semanticweb.org/en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofconferencename8th International Semantic Web Conference (ISWC 2009)en_US
dc.relation.ispartofconferencetitleThe Semantic Web - ISWC 2009en_US
dc.relation.ispartofdatefrom2009-10-25en_US
dc.relation.ispartofdateto2009-10-29en_US
dc.relation.ispartoflocationChantilly, VA, USAen_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode280213en_US
dc.titleConcept and role forgetting in ALC Ontologiesen_US
dc.typeConference outputen_US
dc.type.descriptionE1 - Conference Publications (HERDC)en_US
dc.type.codeE - Conference Publicationsen_US
gro.facultyGriffith Sciences, School of Information and Communication Technologyen_US
gro.rights.copyrightCopyright 2009 SWSA. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the conference website for access to the definitive, published version.en_AU
gro.date.issued2009
gro.hasfulltextFull Text


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    Contains papers delivered by Griffith authors at national and international conferences.

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