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dc.contributor.authorWang, Zhe
dc.contributor.authorWang, Kewen
dc.contributor.authorZhang, Xiaowang
dc.date.accessioned2019-07-04T12:39:53Z
dc.date.available2019-07-04T12:39:53Z
dc.date.issued2018
dc.identifier.isbn9781577358008
dc.identifier.urihttp://hdl.handle.net/10072/381474
dc.description.abstractExistential rules, a family of expressive ontology languages, inherit desired expressive and reasoning properties from both description logics and logic programming. On the other hand, forgetting is a well studied operation for ontology reuse, obfuscation and analysis. Yet it is challenging to establish a theory of forgetting for existential rules. In this paper, we lay the foundation for a theory of forgetting for existential rules by developing a novel notion of unfolding. In particular, we introduce a definition of forgetting for existential rules in terms of query answering and provide a characterisation of forgetting by the unfolding. A result of forgetting may not be expressible in existential rules, and we then capture the expressibility of forgetting by a variant of boundedness. While the expressibility is undecidable in general, we identify a decidable fragment. Finally, we provide an algorithm for forgetting in this fragment.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherAssociation for the Advancement of Artificial Intelligence (AAAI)
dc.publisher.placeUnited States
dc.publisher.urihttps://aaai.org/Conferences/conferences.php
dc.relation.ispartofchapter43933
dc.relation.ispartofconferencename32nd AAAI Conference on Artificial Intelligence / 30th Innovative Applications of Artificial Intelligence Conference / 8th AAAI Symposium on Educational Advances in Artificial Intelligence
dc.relation.ispartofconferencetitleTHIRTY-SECOND AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE / THIRTIETH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE / EIGHTH AAAI SYMPOSIUM ON EDUCATIONAL ADVANCES IN ARTIFICIAL INTELLIGENCE
dc.relation.ispartofdatefrom2018-02-02
dc.relation.ispartofdateto2018-02-07
dc.relation.ispartoflocationNew Orleans, LA
dc.relation.ispartofpagefrom2013
dc.relation.ispartofpagefrom8 pages
dc.relation.ispartofpageto2020
dc.relation.ispartofpageto8 pages
dc.subject.fieldofresearchArtificial intelligence
dc.subject.fieldofresearchcode4602
dc.titleForgetting and Unfolding for Existential Rules
dc.typeConference output
dc.type.descriptionE1 - Conferences
dc.type.codeE - Conference Publications
gro.facultyGriffith Sciences, School of Information and Communication Technology
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Kewen
gro.griffith.authorWang, Zhe


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

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