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On knowledge evolution: acquisition, revision, contraction

 

作者: EliezerL. Lozinskii,  

 

期刊: Journal of Applied Non-Classical Logics  (Taylor Available online 1997)
卷期: Volume 7, issue 1-2  

页码: 177-211

 

ISSN:1166-3081

 

年代: 1997

 

DOI:10.1080/11663081.1997.10510905

 

出版商: Taylor & Francis Group

 

关键词: knowledge;acquisition;revision;contraction

 

数据来源: Taylor

 

摘要:

We consider evolution of knowledge bases caused by a sequence of basic steps of acquisition of a new information, either consistent or inconsistent with the original system. To make this process comply with the Principe of Minimal Change, a special evidence metric is introduced for measuring distance between states of knowledge. Then a novel semantics of knowledge bases is developed suggested by the heuristics of weighted maximally consistent subsets. The latter is efficiently applied to the processes of consistent and inconsistent acquisition of knowledge, belief revision and contraction.

 

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