Show simple item record

dc.contributor.authorK. Ghose, Adityaen_US
dc.contributor.authorO. Hadjinian, Pabloen_US
dc.contributor.authorSattar, Abdulen_US
dc.contributor.authorYou, Jia-H.en_US
dc.contributor.authorGoebel, Randyen_US
dc.contributor.editorDekang Lin, Randy Goebel, Russell Greineren_US
dc.description.abstractMost existing formalizations treat belief change as a single-step process, and ignore several problems that become important when a theory, or belief state, is revised over several steps. This paper identifies these problems, and argues for the need to retain all of the multiple possible outcomes of a belief change step, and for a framework in which the effects of a belief change step persist as long as is consistently possible. To demonstrate that such a formalization is indeed possible, we develop a framework, which uses the language of PJ-default logic (Delgrande and Jackson 1991) to represent a belief state, and which enables the effects of a belief change step to persist by propagating belief constraints. Belief change in this framework maps one belief state to another, where each belief state is a collection of theories given by the set of extensions of the PJ-default theory representing that belief state. Belief constraints do not need to be separately recorded; they are encoded as clearly identifiable components of a PJ-default theory. The framework meets the requirements for iterated belief change that we identify and satisfies most of the AGM postulates (Alchourr㮬 G䲤enfors, and Makinson 1985) as well.en_US
dc.publisherBlackwell Publishing, Inc.en_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofjournalComputational Intelligence: An International Journalen_US
dc.titleIterated belief changeen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2004 Blackwell Publishing. The definitive version is available at []en_AU
gro.hasfulltextNo Full Text

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record