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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