计算机应用 ›› 2014, Vol. 34 ›› Issue (7): 2090-2092.DOI: 10.11772/j.issn.1001-9081.2014.07.2090

• 人工智能 • 上一篇    下一篇

不确定旅行商问题的鲁棒模型与算法

麻存瑞,马昌喜   

  1. 兰州交通大学 交通运输学院,兰州 730070
  • 收稿日期:2014-01-20 修回日期:2014-03-12 出版日期:2014-07-01 发布日期:2014-08-01
  • 通讯作者: 马昌喜
  • 作者简介:麻存瑞(1986-),男,甘肃兰州人,硕士研究生,主要研究方向:物流系统优化与仿真;马昌喜(1979-),男,湖北汉川人,副教授,博士,主要研究方向:交通运输系统优化。
  • 基金资助:

    国家自然科学基金资助项目;甘肃省科技计划资助项目

Robust model and algorithms for uncertain traveling salesman problem

MA Cunrui,MA Changxi   

  1. School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou Gansu 730070, China
  • Received:2014-01-20 Revised:2014-03-12 Online:2014-07-01 Published:2014-08-01
  • Contact: MA Changxi

摘要:

考虑到不确定参数在旅行商问题(TSP)中广泛存在,在Bertsimas鲁棒离散优化理论的框架下,建立了不确定旅行商问题的鲁棒优化模型,并按转换规则将鲁棒模型转换为鲁棒对等模型。给出了一种求解旅行商问题的基于Prufer数编码的单亲遗传算法,与求解该类问题的传统遗传算法相比,该算法缩减了染色体长度,避免了传统交叉和变异操作破坏染色体可行解的缺陷。通过算例验证,表明该算法有较高的求解效率,所建立的鲁棒模型在不确定环境下能得到较好的鲁棒解。

Abstract:

Considering the fact that uncertain parameters were widespread in the Traveling Salesman Problem (TSP), this paper built a robust optimization model for traveling salesman problem under the frame of Bertsimas robust discrete optimization theory, and then transformed it into robust counterpart model according to transformational rule. In addition, a single parent genetic algorithm based on Prufer coding was designed to solve the traveling salesman problem. Compared with the traditional genetic algorithm, the method has shortened the length of the chromosome and prevented feasible solutions being destructed by the traditional crossover and mutation operators. According to the validation by numerical examples, the results show that the algorithm has a higher solving efficiency, and the robust model developed in the uncertain environment can get some better robust solutions.

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