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 ...
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法作了性能比较。
p facilities 我觉得可以理解为P模型 或者可以理解原为的意思为：这类问题最简单的选址办法是p个facilities被选择做为@#$%^&*…… 因为P中值问题之所以被叫做P中值问题 就是其数学模型在建立时 将最终建立的设施节点总数设为p个p-median problem的意思就是P中值问题喽 ...
[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...
not thecase, the objective function can be extended with a term for fixedfacility location costs and as a result, the number of facilities to beestablished typically becomes an endogenous decision.能帮忙翻译一下当然好,我主要想弄懂p facilities和p-median problem的意思及这段文字的大意谢过先...
针对物流中心选址问题,分析和比较了几种常用的选址方法和求解算法。建立了用于求解物流中心选址问题的p-中值模型,利用贪婪取走启发式算法(Greedy Dropping Heuristic Algorithm),实现了模型的快速求解。结合具体案例,编写了算法对应的程序,解决了一类实际的选址问题,
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 ...