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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3890

Title: General family of preferential belief removal operators
Authors: Booth, R
Meyer, T
Sombattheera, C
Keywords: Belief removal operators
Belief removal functions
Epistemic entrenchment
Finite base-generated removal
AGM preferential removal
Nonmonotonic reasoning
8th International Workshop on Nonmonotonic Reasoning, Action and Change
Issue Date: Jul-2009
Citation: Booth, R, Meyer, T and Sombattheera, C. 2009. General family of preferential belief removal operators. 8th International Workshop on Nonmonotonic Reasoning, Action and Change. Pasadena, California, USA, 11 - 17 July 2009, pp 1-8
Abstract: Most belief change operators in the AGM tradition assume an underlying plausibility ordering over the possible worlds which is transitive and complete. A unifying structure for these operators, based on supplementing the plausibility ordering with a second, guiding, relation over the worlds was presented in (Booth et al., 2004). However it is not always reasonable to assume completeness of the underlying ordering. In this paper researchers generalise the structure of [Booth et al., 2004] to allow incomparabilities between worlds. Researchers axiomatise the resulting class of belief removal functions, and show that it includes an important family of removal functions based on finite prioritised belief bases. This paper also looks at some alternative notions of epistemic entrenchment which become distinguishable once we allow incomparabilities
Description: 8th International Workshop on Nonmonotonic Reasoning, Action and Change. Pasadena, California, USA, 11 - 17 July 2009
URI: http://hdl.handle.net/10204/3890
Appears in Collections:Digital intelligence
General science, engineering & technology

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