| 基于双种群的小生境差分进化算法 |
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| 引用本文： | 宁桂英,周永权.基于双种群的小生境差分进化算法[J].计算机应用与软件,2009,26(3). |
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| 作者姓名： | 宁桂英 周永权 |
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| 作者单位： | 1. 广西工学院鹿山学院,广西,柳州,545616
2. 广西民族大学数学与计算机科学学院,广西,南宁,530006 |
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| 摘 要： | 将非线性方程组的求解问题转化为函数优化问题,当方程组有多个解时,它的适应值函数就是具有多个最优解的多峰函数.为此,提出了基于双种群的小生境差分进化算法.在该算法中,进化在两个不同的子群间并行进行,通过使用不同的变异策略,实现种群在解空间具有尽可能分散的探索能力的同时在局部具有尽可能细致的搜索能力.通过子群重组实现子群间的信息交换,然后引入小生境淘汰机制.对典型测试函数的优化结果表明,该算法能找到全部解,而且精度好.
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| 关 键 词： | 差分进化 双种群 小生境 非线性方程组 |
NICHE DIFFERENTIAL EVOLUTION ALGORITHM BASED ON DUAL POPULATION |
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| NING Guiying,ZHOU Yongquan.NICHE DIFFERENTIAL EVOLUTION ALGORITHM BASED ON DUAL POPULATION[J].Computer Applications and Software,2009,26(3). |
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| Authors: | NING Guiying ZHOU Yongquan |
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| Affiliation: | College of Lushan;Guangxi University of Technology;Liuzhou 545616;Guangxi;China;College of Math and Computer Science;Guangxi University for Nationalities;Nanning 530006;China |
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| Abstract: | The problem of solving nonlinear equations is transformed into that of function optimization.When there are multiple solutions,the fitness function is a multi-peaks function with multiple optima.Therefore,niche differential evolution algorithm based on dual population was introduced.In this algorithm,evolution is performed in parallel between two different subgroups,with different mutation strategies,the group achieves the exploration ability as dispersive as possible in solution space while has the searchi... |
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| Keywords: | Differential evolution Dual population Niche Systems of nonlinear equations |
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