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Revision by comparison

dc.contributor.authorFermé, Eduardo
dc.contributor.authorRott, Hans
dc.date.accessioned2021-05-28T14:20:26Z
dc.date.available2021-05-28T14:20:26Z
dc.date.issued2004
dc.description.abstractSince the early 1980s, logical theories of belief revision have offered formal methods for the transformation of knowledge bases or “corpora” of data and beliefs. Early models have dealt with unconditional acceptance and integration of potentially belief-contravening pieces of information into the existing corpus. More recently, models of “non-prioritized” revision were proposed that allow the agent rationally to refuse to accept the new information. This paper introduces a refined method for changing beliefs by specifying constraints on the relative plausibility of propositions. Like the earlier belief revision models, the method proposed is a qualitative one, in the sense that no numbers are needed in order to specify the posterior plausibility of the new information. We use reference beliefs in order to determine the degree of entrenchment of the newly accepted piece of information. We provide two kinds of semantics for this idea, give a logical characterization of the new model, study its relation with other operations of belief revision and contraction, and discuss its intuitive strengths and weaknesses.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFermé, E., & Rott, H. (2004). Revision by comparison. Artificial Intelligence, 157(1-2), 5-47.pt_PT
dc.identifier.doi10.1016/j.artint.2004.04.007pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3456
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBelief revisionpt_PT
dc.subjectTheory changept_PT
dc.subjectSphere semanticspt_PT
dc.subjectEpistemic entrenchmentpt_PT
dc.subjectAGM approachpt_PT
dc.subjectIterated revisionpt_PT
dc.subjectNon-prioritized revisionpt_PT
dc.subjectSevere withdrawalpt_PT
dc.subjectIrrevocable revisionpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleRevision by comparisonpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage47pt_PT
oaire.citation.issue1-2pt_PT
oaire.citation.startPage5pt_PT
oaire.citation.titleArtificial Intelligencept_PT
oaire.citation.volume157pt_PT
person.familyNameFermé
person.givenNameEduardo
person.identifierhttps://scholar.google.com/citations?user=Qu6aCR8AAAAJ&hl
person.identifier.ciencia-idC515-D92F-8F54
person.identifier.orcid0000-0002-9618-2421
person.identifier.scopus-author-id6507544015
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationdbd2982b-b171-4458-b280-5bf0569ca5f2
relation.isAuthorOfPublication.latestForDiscoverydbd2982b-b171-4458-b280-5bf0569ca5f2

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