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电子学报  2012 

一种自适应小生境分布性保持策略

DOI: 10.3969/j.issn.0372-2112.2012.11.030, PP. 2330-2335

Keywords: 多目标进化算法,分布性保持策略,小生境,最小生成树

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Abstract:

小生境技术被广泛应用在多目标进化的分布性保持方面.但是,小生境半径不易控制等限制了其在分布性保持等方面的发展.本文提出了一种自适应小生境分布性保持策略(AdaptiveNiche,AN).AN通过对Pareto解集生成最小生成树来自适应调整小生境半径,同时扩大搜索小生境半径并改变计算方法使之能够识别小生境边沿的个体,便于对其修剪与评价.通过与NSGA-II,SPEA2在不同形状测试函数上进行对比实验,结果表明,AN能够对Pareto最优面进行高效地分布性保持.

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