计算机科学 ›› 2019, Vol. 46 ›› Issue (7): 224-232.doi: 10.11896/j.issn.1002-137X.2019.07.034
董明刚1,2,刘宝1,敬超1,2
DONG Ming-gang1,2,LIU Bao1,JING Chao1,2
摘要： 为提高多目标差分进化算法在求解问题时的收敛性和多样性,提出了一种模糊自适应排序变异多目标差分进化算法。首先,采用模糊系统自适应调节排序变异参数,均衡了算法的局部搜索能力和全局探索能力,在加快算法收敛速度的同时,减小了陷入局部最优的可能性;其次,采用均匀种群初始化方法,在算法开始阶段获得了一个分布均匀的初始种群,提高了算法的稳定性和多样性;最后,增加一个临时的种群以存储被丢弃的个体,用于每一代优化后的最终选择,提高了种群进化过程中的多样性。采用7个标准测试函数和3个具有偏好特征的测试函数进行仿真实验,并将所提算法与其他4种多目标进化算法进行对比。实验结果表明,所提算法在收敛性和多样性方面整体上优于其他几种对比算法,可以有效地逼近真实Pareto前沿。同时,实验也验证了所提算法中模糊自适应排序变异策略的有效性。
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