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DALT
2005
Springer

Resource-Bounded Belief Revision and Contraction

14 years 3 months ago
Resource-Bounded Belief Revision and Contraction
Agents need to be able to change their beliefs; in particular, they should be able to contract or remove a certain belief in order to restore consistency to their set of beliefs, and revise their beliefs by incorporating a new belief which may be inconsistent with their previous beliefs. An influential theory of belief change proposed by Alchourron, G¨ardenfors and Makinson (AGM) [1] describes postulates which a rational belief revision and contraction operations should satisfy. The AGM postulates have been perceived as characterising idealised rational reasoners, and the corresponding belief change operations are considered unsuitable for implementable agents due to their high computational cost [3]. The main result of this paper is showing that an efficient (linear time) belief contraction operation nevertheless satisfies all but one of the AGM postulates for contraction. This contraction operation is defined for a realistic rule-based agent which can be seen as a reasoner in a ...
Natasha Alechina, Mark Jago, Brian Logan
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where DALT
Authors Natasha Alechina, Mark Jago, Brian Logan
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