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Maintaining Case‐Based Reasoners: Dimensions and Directions
Author(s) -
Wilson David C.,
Leake David B.
Publication year - 2001
Publication title -
computational intelligence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.353
H-Index - 52
eISSN - 1467-8640
pISSN - 0824-7935
DOI - 10.1111/0824-7935.00140
Subject(s) - computer science , semantic reasoner , knowledge base , consistency (knowledge bases) , competence (human resources) , artificial intelligence , psychology , social psychology
Experience with the growing number of large‐scale and long‐term case‐based reasoning (CBR) applications has led to increasing recognition of the importance of maintaining existing CBR systems. Recent research has focused on case‐base maintenance (CBM), addressing such issues as maintaining consistency, preserving competence, and controlling case‐base growth. A set of dimensions for case‐base maintenance, proposed by Leake and Wilson, provides a framework for understanding and expanding CBM research. However, it also has been recognized that other knowledge containers can be equally important maintenance targets. Multiple researchers have addressed pieces of this more general maintenance problem, considering such issues as how to refine similarity criteria and adaptation knowledge. As with case‐base maintenance, a framework of dimensions for characterizing more general maintenance activity, within and across knowledge containers, is desirable to unify and understand the state of the art, as well as to suggest new avenues of exploration by identifying points along the dimensions that have not yet been studied. This article presents such a framework by (1) refining and updating the earlier framework of dimensions for case‐base maintenance, (2) applying the refined dimensions to the entire range of knowledge containers, and (3) extending the theory to include coordinated cross‐container maintenance. The result is a framework for understanding the general problem of case‐based reasoner maintenance (CBRM). Taking the new framework as a starting point, the article explores key issues for future CBRM research.