arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.06647math.OC
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网络设计覆盖问题的Benders分解

Benders decomposition for Network Design Covering Problems

Víctor Bucarey, Bernard Fortz, Natividad González-Blanco, Martine Labbé, Juan A. Mesa

摘要:

我们考虑网络设计问题的两个覆盖变体。我们给出一组源/目的地对,称为O/D对,如果网络中存在从源到目的地的路径,其长度不大于给定的阈值,则每个这样的O/D对都被覆盖。在第一个问题中,称为最大覆盖网络设计问题,必须确定一个网络,最大限度地满足总需求的覆盖O/D对受到预算约束的网络的设计成本。在第二个问题中,称为部分覆盖网络设计问题,设计成本最小化,而下界设置在总需求覆盖。在提出公式后,我们开发了一个Benders分解方法来解决问题。此外,我们考虑几种稳定化方法来确定Benders削减以及除了割集不等式的主问题。我们还考虑了在我们的方法中添加初始解的影响。计算实验表明,这些不同方面的效率。

英文摘要:

We consider two covering variants of the network design problem. We are given a set of origin/destination pairs, called O/D pairs, and each such O/D pair is covered if there exists a path in the network from the origin to the destination whose length is not larger than a given threshold. In the first problem, called the Maximal Covering Network Design problem, one must determine a network that maximizes the total fulfilled demand of the covered O/D pairs subject to a budget constraint on the design costs of the network. In the second problem, called the Partial Covering Network Design problem, the design cost is minimized while a lower bound is set on the total demand covered. After presenting formulations, we develop a Benders decomposition approach to solve the problems. Further, we consider several stabilization methods to determine Benders cuts as well as the addition of cut-set inequalities to the master problem. We also consider the impact of adding an initial solution to our methods. Computational experiments show the efficiency of these different aspects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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