计算机科学 ›› 2011, Vol. 38 ›› Issue (9): 197-200.

• 人工智能 • 上一篇    下一篇

Levy变异进化规划算法的计算时间分析

蔡昭权,罗伟,张宇山,黄翰,罗勇为   

  1. (惠州学院教育技术中心 惠州 516007);(广东商学院数学与计算科学学院 广州 5103202);(华南理工大学软件学院 广州 510006)]
  • 出版日期:2018-11-16 发布日期:2018-11-16
  • 基金资助:
    本文受国家白然科学基金资助项目(61003066,61070033),教育部博十点基金资助项目(20090172120035),中央科研、IU务费资助项目(2009ZM0052),广东省科技计划资助项目(20098010800026),广东省自然科学基金资助项目(9151008901000165,10151601501000015)资助。

Running-time Analysis of Evolutionary Programming Based on Levy Mutation

CAI Zhao-quan, LUO Wei, ZHANG Yu-shang, HUANG Han, LUO Yong-wei   

  • Online:2018-11-16 Published:2018-11-16

摘要: 连续型进化算法的计算时间分析是目前国内外研究的难题,对此研究了I_cvy变异进化规划(evolutionary programming based on Levy mutation, LEP)算法的计算时间分析理论。具体的分析步骤如下:首先在将LEP算法建模为吸收态Markov过程的基础上,证明了LEP算法的收敛性;然后,结合LEP算法选择算子的特点,以首达最优解的期望时间作为计算时间分析的主要指标;最后,利用I_cvy分布的近似变形给出LEP算法计算时间的估计式。研究结果表明,最优解空间的Lebesgue测度、算法的种群规模和搜索范围对计算时间有直接影响。

关键词: 人工智能,进化计算,进化规划,计算时间,Levy变异

Abstract: Running-time analysis of the continuous evolutionary algorithm is a difficult problem now existing in the field at home and abroad. To deal with this issue, the paper gave an in-depth studies about the running time of evolutionary programming based on Levy mutation(LEP). The procedure is as follows:First,LEP algorithm was modeled on the basis of an absorbing Markov process, which proved the optimal solution of the I_EP convergence. Second, the expected first hitting time was used to evaluate the running time of LEP algorithm by taking its computational properties into consideration. Finally, based on the similar transformation of I_cvy distribution, an estimation equation of I_EP running time was proposed. The research results indicate that the upper bounds for the running time arc directly influenced by the Lebesgue measurement of the optimal space, its population scale and the searching range.

Key words: Artificial intelligence, Evolutionary computation, Evolutionary programming, Computational time, I_cvy mu- 11l.lOn

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