基于遗传算法的物流配送路径优化研究(1).doc用单亲遗传算法求解配送车辆调度问题的研究
郎茂祥
(北京交通大学交通运输学院,北京100044)
摘 要:论文建立了物流配送车辆调度问题的数学模型,并针对传统遗传算法对复杂问 题搜索效率低,易陷入“早熟收敛”的缺点,构建了求解物流配送车辆调度问题的单亲遗传 算法,并进行了实验计算。计算结果表明,用单亲遗传算法求解物流配送车辆调度问题,可 以取得比传统遗传算法更优的结果。
关键词:物流配送;车辆调度问题;单亲遗传算法;遗传算法
Study on the Partheno-Genetic Algorithm for Physical Distribution Vehicle
Scheduling Problem
LANG Mao-xiang, HU Si-ji
(School of Traffic and Transportation, Northern Jiaotong University, Beijing 100044, China)
Abstract: This paper established the model of physical distribution vehicle scheduling problem. On the basis of analyzing the shortcomings of traditional genetic algorithm in low searching efficiency and u Immature Convergence, this paper established a partheno-genetic algorithm for solving physical distribution vehicle scheduling problem and made some experimental computations. The computational results had demonstrated that the partheno-genetic algorithm had higher optimizing efficiency and quality than traditional genetic algorithm in solving physical distribution vehicle scheduling problem.
Keywords: physical distribution; vehicle scheduling problem; pertheno-genetic algorithm; genetic algorithm
1引言
随着市场经济的发展和物流专业化水平的提高,物流配送业得到了迅速发展。在物流配 送业务中,配送车辆调度问题的涉及面较广,对企业提高服务质量、降低物流成本的影响也 较大。在现实生产和生活中,邮政投递问题、公共汽车调度问题、电力调度问题、管道铺设 问题、计算机网络拓扑设计问题等都可以抽象为物流配送车辆调度问题。因此,研究物流配 送车辆调度问题具有重要的理论和现实意义。
物流配送车辆调度问题作为一个NP难题,随着客户数量的增加,可选的车辆路径方案 数量将以指数速度急剧增长。因此,用启发式算法求解该问题
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