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快速跳出局部最优的VPS-GEP算法 被引量:13

VPS-GEP: Skipping from Local Optimization Fast Algorithm
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摘要 传统GEP(Gene Expression Programm ing)算法存在局部收敛方面的缺陷,为了解决这一问题,提出了可以使进化快速跳出局部最优的VPS-GEP(Various Popu lation Strategy GEP)算法,证明了在概率意义上GEP平均每代进化所耗时间与群体规模成正比,用两个标准测试函数和一个标准测试数据集测试了VPS-GEP算法的函数挖掘能力和效率。实验表明,VPS-GEP算法可以减少进化停滞代数55%以上。 The traditional Gene Expression Programming(GEP) has the deficiency of local optimization. In order to solve this problem, VPS-GEP ( Various Population Strategy GEP), an algorithm for evolution skipping from local optimization fast,was proposed. It was proved that the time for per-generation evolution increases with the size of population under probability sense. The ability of mining function and efficiency of VPS-GEP was tested by two standard test functions and one standard dataset. The experiments showed that VPS-GEP algorithm decreases the generation-stagnancy over 55 %.
出处 《四川大学学报(工程科学版)》 EI CAS CSCD 北大核心 2007年第1期128-133,共6页 Journal of Sichuan University (Engineering Science Edition)
基金 国家自然科学基金(6047307190409007) 四川省青年软件创新基金(816) 国家973计划基金(2002CB111504) 教育部博士点基金(20020610007) 广西自然科学基金(桂科自0339039) 四川省科技攻关项目(2006Z01-027)资助项目
关键词 GEP 遗传算法 函数挖掘 基因多样性 VPS-GEP GEP genetic algorithm function mining gene diversity VPS-GEP
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