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1.西北大学信息科学与技术学院,陕西西安 710127
2.西安交通大学第一附属医院,陕西西安 710049
Received:21 April 2021,
Revised:2021-08-05,
Published Online:25 July 2022,
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Yi WANG, Yu-bo PENG, Xin HUANG, et al. Adaptive Differential Evolution Algorithm Based on Elite Differential Feedback Strategy[J/OL]. ACTA ELECTRONICA SINICA, 2022, 1-11.
Yi WANG, Yu-bo PENG, Xin HUANG, et al. Adaptive Differential Evolution Algorithm Based on Elite Differential Feedback Strategy[J/OL]. ACTA ELECTRONICA SINICA, 2022, 1-11. DOI: 10.12263/DZXB.20210513.
为提升差分进化的收敛性与多样性能力,分析并归纳了影响差分进化算法性能的参数自适应调节机制与改进策略,提出一种基于精英差异反馈策略的自适应差分进化算法.首先,通过种群个体适应度评估,找出当前种群全局最优个体,并与待进化个体判定生成全局精英差异;其次,提出基于多样性扰动邻域生成策略,构建个体邻域,并基于邻域最优个体与待进化个体判定生成邻域精英差异;最后通过全局精英差异与邻域精英差异指导DE(Differential Evolution)算法交叉策略,平衡了DE算法的收敛性与多样性.同时,本算法步长因子
F
采用自适应调整策略,进而降低算法陷入搜索停滞的可能.通过本文在CEC2017测试集上与其他主流改进算法相比,实验结果表明该算法在寻优效率与收敛精度上显著优于对比方法.
In order to improve the algorithm convergence and diversity capabilities in differential evolution
the parameter adaptive adjustment mechanism and improvement strategy that affect the performance of differential evolution algorithm are analyzed and summarized
and an adaptive differential evolution algorithm based on elite differential feedback strategy is proposed. First
through population individual fitness assessment
find the global optimal individual of the current population
and determine the global elite difference with the individual to be evolved; second
propose a strategy based on the diversity perturbation neighborhood generation strategy to construct individual neighborhoods based on neighborhoods The optimal individual and the individual to be evolved are determined to generate neighborhood elite differences; finally
the crossover strategy of DE algorithm is guided by global elite differences and neighborhood elite differences
which balances the convergence and diversity of DE algorithm. At the same time
the step factor F of this algorithm adopts an adaptive adjustment strategy
thereby reducing the possibility of the algorithm getting stuck in search. By comparing this article with other mainstream improved algorithms on the CEC2017 test set
the experimental results show that the algorithm is significantly better than the comparison method in terms of optimization efficiency and convergence accuracy.
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