Intelligent index selection for case-based reasoning

Mykola Galushka

doi:10.1016/j.knosys.2006.05.003

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Intelligent index selection for case-based reasoning

2006-12-01

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Mykola Galushka *

David Patterson

DOI：10.1016/j.knosys.2006.05.003

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Abstract

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In this paper, we present an indexing technique for case-based reasoning called D-HSE, that is shown to be more competent than and twice as efficient as the commonly used R-tree. D-HSE was designed to addresses periodical competency shortcomings of the related D-HS (M) index but unfortunately in doing so some efficiency was seen to be sacrificed. In order to address this problem of competency verses efficiency, we propose an intelligent selection algorithm that automatically analyses the case-base and decides which index (D-HSM or D-HSE) should be used to optimize performance. The algorithm is designed to favour competency at the expense of efficiency where a competency gain is deemed highly likely to be achieved by using the less efficient approach. In effect we are proposing a flexible indexing scheme that is aware of changes within its environment and which reacts to these changes to optimize performance. (c) 2006 Elsevier B.V. All rights reserved.

Keywords:

case-based reasoning

indexing techniques

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