The Integrative Optimization by RBF Network and Particle Swarm Optimization

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  • ＲＢＦネットワークとＰａｒｔｉｃｌｅ　Ｓｗａｒｍ　Ｏｐｔｉｍｉｚａｔｉｏｎによる統合的最適化
  • RBF ネットワーク ト Particle Swarm Optimization ニ ヨル トウゴウテキ サイテキカ

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This paper presents a method for the integrative optimization system. Recently, many methods for global optimization have been proposed. The objective of these methods is to find a global minimum of non-convex function. However, large numbers of function evaluations are required, in general. We utilize the response surface method to approximate function space to reduce the function evaluations. The response surface method is constructed from sampling points. The RBF Network, which is one of the neural networks, is utilized to approximate the function space. Then Particle Swarm Optimization (PSO) is applied to the response surface. Proposed system consists of three parts. That is, (Part 1) Generation of the sampling points, (Part 2) Construction of response surface by RBF Network, (Part 3) Optimization by PSO. By iterating these three parts, it is expected that the approximate global minimum of non-convex function can be obtained with a few number of function evaluations. Through numerical examples, the effectiveness and validity are examined.

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