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doi:10.1016/S0957-4174(01)00035-5    
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Copyright © 2001 Elsevier Science Ltd. All rights reserved.

Maintaining case-based reasoning systems using a genetic algorithms approach

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Kyoung-jae KimCorresponding Author Contact Information, E-mail The Corresponding Author and Ingoo Han

Graduate School of Management, Korea Advanced Institute of Science and Technology, 207-43 Cheongryangri-Dong, Dongdaemun-Gu, Seoul 130-012, South Korea


Available online 3 October 2001.

Abstract

The success of a case-based reasoning (CBR) system largely depends on an effective maintenance of its case-base. This study proposes a genetic algorithms (GAs) approach to the maintenance of CBR systems. This approach automatically determines the representation of cases and indexes relevant attributes to grasp the rapidly changing environment around the system. In this study, the proposed model is applied to stock market analysis. Experimental results show that the proposed model outperforms conventional CBR systems.

Author Keywords: Case-based reasoning; Case-base maintenance; Genetic algorithms; Stock market prediction

Article Outline

1. Introduction
2. Prior research on case-base maintenance
3. A case-base maintenance model with the GA
3.1. Case representation and indexing for CBM
3.2. Genetic algorithms
3.3. Model specification
4. Application to stock market data
4.1. The data
4.2. Experiments
4.3. Experimental results and discussions
5. Concluding remarks
Acknowledgements
References

Corresponding Author Contact Information Corresponding author. Tel.: +82-2-958-3131; fax: +82-2-958-3604; email: kkj@kgsm.kaist.ac.kr


 
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