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Fuzzy Rule Base Generation through Genetic Algorithms and Bayesian Classifiers A Comparative Approach

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4 Author(s)
Marcos Evandro Cintra ; Fed. Univ. of Sao Carlos (UFSCar), Sao Carlos ; Heloisa de Camargo ; Estevan R. Hruschka ; M. do Carmo Nicoletti

The definition of the fuzzy rule base is one of the most important and difficult tasks when designing fuzzy systems. This paper discusses the results of two different hybrid methods investigated earlier, for the automatic generation of fuzzy rules from numerical data. One of the methods proposes the creation of fuzzy rule bases using genetic algorithms in association with a heuristic for preselecting candidate rules. The other, named Bayes fuzzy, induces a Bayes classifier using a dataset previously granulated by fuzzy partitions and then translates this classifier into a fuzzy rule base. A comparative analysis between both approaches focusing on their main characteristics, strengths/weaknesses and easiness of use is carried out. The reliability of both methods is also compared by analyzing their results in a few knowledge domains.

Published in:

Seventh International Conference on Intelligent Systems Design and Applications (ISDA 2007)

Date of Conference:

20-24 Oct. 2007