Heuristics for the central tree problem

被引:0
作者
Jørgen Bang-Jensen
Yury Nikulin
机构
[1] University of Southern Denmark,Department of Mathematics and Computer Science
[2] University of Turku,Department of Mathematics
来源
Journal of Heuristics | 2010年 / 16卷
关键词
Minmax regret; Robustness; Central tree; Spanning tree; Local search;
D O I
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中图分类号
学科分类号
摘要
This paper addresses the central spanning tree problem (CTP). The problem consists in finding a spanning tree that minimizes the so-called robust deviation, i.e. deviation from a maximally distant tree. The distance between two trees is measured by means of the symmetric difference of their edge sets. The central tree problem is known to be NP-hard. We attack the problem with a hybrid heuristic consisting of: (1) a greedy construction heuristic to get a good initial solution and (2) fast local search improvement. We illustrate computationally efficiency of the proposed approach.
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页码:633 / 651
页数:18
相关论文
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