Abstract

Particle swarm optimization (PSO) algorithm is an optimization algorithm in the field of evolutionary computation, which has been applied widely in function optimization, artificial neural networkspsila training, pattern recognition, fuzzy control and some other fields. Original PSO algorithm could be trapped in the local optimum easily, so in this paper we improved the original PSO algorithm using the idea of simulated annealing algorithm, which makes the PSO algorithm jump out of local optimum. In this paper, two improved strategies was proposed, and after testing and comparing the two improved algorithms with the original PSO algorithm again and again, we conclude at last that efficiency of global searching of the two improved strategies is better than the original PSO.

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