Combinatorial algorithms for restricted inverse optimal value problems on minimum spanning tree under weighted 1 1 norm

被引:0
|
作者
Jia, Junhua [1 ]
Guan, Xiucui [1 ]
Zhang, Binwu [2 ]
Qian, Xinqiang [1 ]
Pardalos, Panos M. [3 ]
机构
[1] Southeast Univ, Sch Math, 2 Sipailou, Nanjing 210096, Jiangsu, Peoples R China
[2] Hohai Univ, Coll Sci, 1 Xikang Rd, Nanjing 210098, Peoples R China
[3] Univ Florida, Ctr Appl Optimizat, POB 116595, Gainesville, FL 32611 USA
基金
中国国家自然科学基金;
关键词
Minimum spanning tree; Restricted inverse optimal value problem; Linear programming; Dual theory; Minimum cost flow; l1; norm; MATROID PROBLEM; INCREASE;
D O I
10.1016/j.cam.2024.116110
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study the restricted inverse optimal value problem on minimum spanning tree under weighted.. 1 norm. In a connected edge-weighted network..(..,..,..), we are given a spanning tree...., a cost vector.. and a value... We aim to obtain a new weight vector.. satisfying the bounded constraint such that.... is a minimum spanning tree under.. whose weight is just... We focus on minimizing the modification cost under weighted.... norm. We first convert its mathematical model into a linear programming problem (..). Then we solve its dual problem (..) by a sub-problem (....*) corresponding to the critical value..* which can be calculated by a binary search method. Impressively the sub-problem.... for... R can be transformed into a minimum cost flow problem on an auxiliary network. Finally, we propose an.. (|.. |2|.. |2 log |.. | log(|.. |........)) algorithm, where........ is the maximum cost of the vector...
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页数:22
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