摘要

A discrete particle swarm optimization (DPSO) algorithm is developed. To obtain a better approximation of true Pareto front, the phenotype sharing function of the objective space is applied in the fitness function. Inspired by the physics of genetic algorithm (GA), the principles of mutation and crossover operator in GA are incorporated into the proposed PSO algorithm to achieve better diversity and break away from local optima. The global convergence of the proposed algorithm is proved by the theorem of Markov chain. The experimental results show that DPSO is efficient and has good performance to problems with increased size.

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