The basic principle using the branchand- bound strategy to solve the traveling Salesperson optimization problem (TSP) consists of two parts. There is a way to split the solution space. There is a way to predict a lower bound for a class of solutions. There is also a way to find an upper bound of an optimal solution. If the lower bound of a solution exceeds this upper bound, this solution cannot be optimal. Thus, we should terminate the branching associated with this solution.
标签: Salesperson principle branchand the
上传时间: 2017-02-19
上传用户:comua
Traveling Salesperson Problem Our branch-and-strategy splits a branch and bound solution into two groups: one group including a particular arc and the other excluding this arc. 1.Each splitting incurs a lower bound and we shall traverse the searching tree with the "lower" lower bound. 2.If a constant subtracted from any row or any column of the cost matrix, an optimal solution does not change.
标签: branch-and-strategy Salesperson Traveling solution
上传时间: 2013-12-29
上传用户:璇珠官人
多旅行商问题(Multiple Traveling Salesperson Problem ,简称MTSP) 讨论的是如何安排m( > 1 ) 位旅行商访问n( > m ) 座城市,要求每个城市只允许被访问一次时,求解所有旅行商花费的费用和是最小(或最大) 的问题。MTSP 问题其实与单 旅行商问题(Traveling Salesperson Problem ,简称TSP) 相似,但是由于添加了任何城市只要被某一旅行商访问到即可这个附加条 件,因而增加了问题复杂度。在以前使用遗传算法(GA) 研究解决MTSP 问题时,通常采用标准的TSP 染色体和处理方法。现 为解决MTSP 问题给出了一种新的染色体设计和相关的处理方法,并与以往的理论设计和计算性能进行比较。计算测试显 示,新的方法能够获得较小的查找空间,在许多方面,新的方法产生的解空间更好。
标签: Salesperson Traveling Multiple Problem
上传时间: 2013-12-17
上传用户:虫虫虫虫虫虫
MTSP 问题其实与单 旅行商问题(Traveling Salesperson Problem ,简称TSP) 相似,但是由于添加了任何城市只要被某一旅行商访问到即可这个附加条 件,因而增加了问题复杂度。在以前使用遗传算法(GA) 研究解决MTSP 问题时,通常采用标准的TSP 染色体和处理方法。
标签: Salesperson Traveling Problem MTSP
上传时间: 2013-12-24
上传用户:731140412