Non-prioritized ranked belief change
type: Item
instance of: scholarly article
title: Non-prioritized ranked belief change
zbMATH Open document ID: 1025.03011
DOI: 10.1023/A:1024888511283
author: Samir Chopra
author: Aditya Ghose
author: Thomas Meyer
published in: Journal of Philosophical Logic
publication date: 2003-08-28T00:00:00Z
review text: The purpose of this paper is to generalize a construction in the logic of belief change that was introduced by \textit{A. Ghose} and \textit{R. Goebel} [``Belief states as default theories: Studies in non-prioritized belief change'', in: H. Prade (ed.), ECAI 98: 13th European conference on artificial intelligence. New York: Wiley, 220-246 (1998)]. Ghose and Goebel used the well-known idea of constructing maximal consistent subsets of an information state, with multiplicity eliminated by a linear preference relation between the elements of the information state. The novel twist was that the information states are made up not only of beliefs but also of disbeliefs, i.e. propositions that the agent refuses to believe. In the paper under review the requirement of linearity on the preference relation is relaxed to one of ranking. As in the earlier paper, the apparatus is deployed to yield non-prioritized information-base operations of contraction and revision.
Mathematics Subject Classification ID: 03B42
Mathematics Subject Classification ID: 68T27
zbMATH DE Number: 1972198
zbMATH Keywords: belief change
zbMATH Keywords: contraction
zbMATH Keywords: disbelief
reviewed by: David Makinson
MaRDI profile type: Publication
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full work available at URL: a:1024888511283
OpenAlex ID: W1542972356
description: scientific article; zbMATH DE number 1972198