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遗传算法及其改进
引用本文:段玉倩,贺家李.遗传算法及其改进[J].电力系统及其自动化学报,1998,10(1):39-52.
作者姓名:段玉倩  贺家李
作者单位:天津大学自动化学院电力系
基金项目:国家教委博士学科点基金
摘    要:本文首先对遗传算法的来源,基本原理,数学机理,特点及其应用进行了论述。这了提高遗传算法的收敛性能,同时考虑到交叉率和变异率的选取问题,本文简要介绍了一种基于个体适应度值的自适应调整交叉率和变异率的自适应遗传算法。

关 键 词:遗传算法  自适应遗传算法  原理  数学机理  GA

GENETIC ALGORITHM AND ITS MODIFICATION
Duan Yuqian,He Jiali.GENETIC ALGORITHM AND ITS MODIFICATION[J].Proceedings of the CSU-EPSA,1998,10(1):39-52.
Authors:Duan Yuqian  He Jiali
Abstract:In this paper, we first introduced and discussed in detail the Genetic Algorithm (GA) on its origin, its basic principle, its mathematics mechanism and its characteristics and application. In order to improve the convergence of GA, considering that it is difficult to choose the probability of crossover (Pc) and mutation (Pm), an Adaptive Genetic Algorithm (AGA) in which Pc and Pm were varied depending on the fitness values of the solutions was simply introduced. After analyzing its deficiency, a modified method Modified Adaptive Genetic Algorithm (MAGA) was presented in this paper. Finally, we compared the performance of the MAGA with those of the other methods using several optimization problems. Results showed that MAGA presented in this paper greatly improved the performance of convergence to the global optimum.
Keywords:Genetic Algorithm    Adaptive Genetic Algorithm
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