关键词: 自适应遗传算法, 早收敛, 交叉率, 变异率

Abstract: To overcome global situation problem tradition genetic algorithm has very strong robustness in finding the solution，but crossover probability and mutation probability is fixed and invariable，it caused premature convergence and running inefficient to the solution on complicated problem at later evolution process of tradition genetic algorithm.To this problem，an adaptive genetic algorithm is proposed with varying population size based on lifetimes of the chromosomes to realize population size adjust adaptively and crossover probability adjust adaptively and mutation probability adjust adaptively.Experimental results show that the approach proposed is effective in the capability of global optimization and significantly improves the convergence rate.

Key words: adaptive genetic algorithm, premature convergence, crossover probability, mutation probability