منابع مشابه
Credibility Limited Revision
Five types of constructions are introduced for non-prioritized belief revision, i.e., belief revision in which the input sentence is not always accepted. These constructions include generalizations of entrenchment-based and sphere-based revision. Axiomatic characterizations are provided, and close interconnections are shown to hold between the di®erent constructions. x
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In Belief Revision the new information is generally accepted, following the principle of primacy of update. In some case this behavior can be criticized and one could require that some new pieces of information can be rejected by the agent because, for instance, of insufficient plausibility. This has given rise to several approaches of non-prioritized Belief Revision. In particular (Hansson et ...
متن کاملCredibility-Limited Improvement Operators
In this paper we introduce and study credibility-limited improvement operators. The idea is to accept the new piece of information if this information is judged credible by the agent, so in this case a revision is performed. When the new piece of information is not credible then it is not accepted (no revision is performed), but its plausibility is still improved in the epistemic state of the a...
متن کاملArgumentative Credibility-based Revision in Multi-Agent Systems
We consider the problem of belief revision in a multi-agent system with information stemming from different agents with different degrees of credibility. In this context an agent has to carefully choose which information is to be accepted for revision in order to avoid believing in faulty and untrustworthy information. We propose a revision process combining selective revision, deductive argume...
متن کاملSays Who ? – Incorporating Source Credibility Issues into Belief Revision 1 CSE Technical Report 99 - 08
We discuss some belief revision theories and the implementation of some of them in SNeBR, the belief revision subsystem of the SNePS knowledge representation and reasoning system. The following guidelines are important to belief revision: 1. minimize information removal 2. retract less-plausible beliefs before more-plausible ones. Alterations to SNeBR that provide users with information to help...
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ژورنال
عنوان ژورنال: Journal of Symbolic Logic
سال: 2001
ISSN: 0022-4812,1943-5886
DOI: 10.2307/2694963