关键词: 粒子群优化算法（PSO） f局部寻优算子 性能分析

Abstract:

Particle Swarm Optimization （PSO） is an evolutionary computation technique and an optimization tool based on iteration. However, the PSO algorithm d  oes not search the solution space of the points closest to the extrema, which leads to the bad local extrema of the final solutions. Moreover the PSO al   gorithm needs enough iterations to get better solutions, and it usually cannot get better solutions with the limit of iteration steps or the situation o f break at any time. Based on those shortages, the f-PSO algorithm which is based on neighborhood search is presented. The algorithm searches for local    optimization solutions when it upgrades the global optimization solutions each time in the iteration steps of PSO. Experiments indicate that this algori   thm has a strong theoretical value and good robustness, even with the lack of computation, insufficient iterations or break at any time.

Key words: particle swarm optimization（PSO） ;f local optimizer, performance analysis