故提出了覆盖问题。覆盖问题又分为两类小问题:(1)集合覆盖问题(set covering problem);(2)最大...
故提出了覆盖问题。覆盖问题又分为两类小问题:(1)集合覆盖问题(set covering problem);(2)最大...
假设给定了设施-需求之间的距离矩阵,照着上面的模型即可写出Leapms模型。 //===//The P-Median Problem//===min sum{j=1,...,J;i=1,...,I}h[i]d[i][j]y[i][j] subject to sum{j=1,...,J}y[i][j]=1|i=1,...,I y[i][j]-x[j]<=0|i=1,...,I...
需求和距离数据保持相同,无论客户和仓库的标签格式如何。 ...(省略符)语法表示数据在外部初始化,即,通过数据文件 (pmedian.dat) 初始化。 P=2; Customers={"Albert","Bob","Chris","Daniel"}; Warehouses={"Santa Clara","San Jose","Berkeley"}; Demand=[100,80,80,70]; Distance= [[ 2 , 10 ...
[2] Herda M. Combined genetic algorithm for capacitated p-medianproblem[C]//IEEEInternationalSymposiumon Computational Intelligence and Informatics. IEEE, 2017.151-154. [3] Lorena L A N, Senne E L F. A column generation approach to capacitated p-median problems[J]. Computers&Operations Research...
The p-median model for solving the logistics center location problem is established and the fast solution of the model is realized by using Greedy Dropping Heuristic Algorithm. Combined with specific cases, a kind of actual location problem is solved to verify the correctness of the model and ...
Combined with specific cases, a kind of actual location problem is solved to verify the correctness of the model and the feasibility of the algorithm by writing the program corresponding to the algorithm. Keywords Logistics Center, Location, p-Median, Heuristic Algorithm 基于p- 中值模型的物流中心...
1) p-median problem p-中值问题 1. This paper deals with the uncapacitated facility location p-median problem. 本文研究了选址问题中无容量限制的p-中值问题,在Rolland等人提出的有效禁忌搜索算法基础上,提出了一种以目标函数变化量作为评价函数的改进禁忌搜索算法,并进行了理论分析,然后将其与有效禁忌搜索算...
...(省略符)语法表示数据在外部初始化,即,通过数据文件 (pmedian.dat) 初始化。 P=2; Customers={"Albert","Bob","Chris","Daniel"}; Warehouses={"Santa Clara","San Jose","Berkeley"}; Demand=[100,80,80,70]; Distance= [[ 2 , 10 , 50 ], ...
center location problem is established and the fast solution of the model is realized by using Greedy Dropping Heuristic Algorithm. Combined with specific cases, a kind of actual location problem is solved to verify the correctness of the model and the feasibility of the algorithm by writing the ...