Journal of Japan Society for Fuzzy Theory and Intelligent Informatics
Online ISSN : 1881-7203
Print ISSN : 1347-7986
ISSN-L : 1347-7986
Original Papers
Fuzzy Adaptive Search Method for Parallel Genetic Algorithm and Its Improved Methods
Qiang LIYoichiro MAEDA
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JOURNAL FREE ACCESS

2009 Volume 21 Issue 5 Pages 894-904

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Abstract
Genetic Algorithm (GA) has been successfully applied in wide scope, and is a learning algorithm to mimic the biological mechanism of inheritance (neo-Darwinism). In general, because GA is an exploration method including stochastic search, there were a number of issues. Specially, the search ability of ordinary GA is not always optimal in the early and final stage of search, because of fixed genetic parameters, i.e., crossover rate, mutation rate and so on. Therefore, we have already proposed the fuzzy adaptive search method for parallel genetic algorithm based on the acceleration of evolution and high quality solutions. However, there are some cases when it is not enough accuracy to describe the stage of evolution, because the best fitness and average fitness were adopted as inputs of fuzzy rules. Moreover, worse performance was shown in the test function with high dimensions. Therefore, in this research we propose the improvement methods that have a good performance in the optimization problem of high-dimensional function. And the comparison simulations are executed to verify the efficiency of proposed methods. The results of simulations are also reported.
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© 2009 Japan Society for Fuzzy Theory and Intelligent Informatics
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