A modified VNS metaheuristic for max-bisection problems

A modified VNS metaheuristic for max-bisection problems
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针对最大二分问题的改进的 VNS 元启发式

DOI:
10.1016/j.cam.2007.08.018
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发表时间:
2008-10
影响因子:
2.4
通讯作者:
Ling, Ai-fan
Ling, Ai-fan
中科院分区:
数学2区
文献类型:
--
作者:
Tang, Le;Xu, Cheng-xian;Ling, Ai-fan

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Festa等人提出的可变邻域搜索(VNS)元启发式算法[MAX-CUT问题的随机启发式算法,Optim。]方法软件17(2002)1033-1058]可获得最大切割问题的高质量解。因此,将VNS元启发式算法推广到求解最大等分问题是有价值的。遗憾的是,与最大切问题相比,最大等分问题通过线性约束eTx=0具有更复杂的可行域。很难直接应用典型的VNS元启发式算法来处理最大等分问题。本文将约束条件eTx=0与目标函数巧妙地结合起来,得到了一个等价于最大等分问题的新的优化问题,并对得到的问题采用了一种独特的贪婪局部搜索技术。提出了一种基于贪心局部搜索技术的改进VNS元启发式算法,用于求解最大等分问题。数值结果表明,所提出的方法是有效的,可以得到最大等分问题的高等价解。
Variable neighborhood search (VNS) metaheuristic as presented in Festa et al. [Randomized heuristics for the MAX-CUT problem, Optim. Methods Software 17 (2002) 1033–1058] can obtain high quality solution for max-cut problems. Therefore, it is worthwhile that VNS metaheuristic is extended to solve max-bisection problems. Unfortunately, comparing with max-cut problems, max-bisection problems have more complicated feasible region via the linear constraint eTx=0. It is hard to directly apply the typical VNS metaheuristic to deal with max-bisection problems. In this paper, we skillfully combine the constraint eTx=0 with the objective function, obtain a new optimization problem which is equivalent to the max-bisection problem, and then adopt a distinct greedy local search technique to the resulted problem. A modified VNS metaheuristic based on the greedy local search technique is applied to solve max-bisection problems. Numerical results indicate that the proposed method is efficient and can obtain high equality solution for max-bisection problems.
DOI: 10.1007/bf02523688
发表时间: 1997-05-01
期刊: ALGORITHMICA
影响因子: 1.1
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