具有节点连接约束的网络设计

H. Cancela, F. Robledo, G. Rubino
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引用次数: 9

摘要

具有节点连通性约束的广义斯坦纳问题(GSPNC)是给定网络的最小代价子网络的确定问题,其中需要若干对节点来满足节点连通性要求。GSPNC在低成本通信网络的设计中具有应用价值,该网络可以在服务器和连接线故障中存活下来。已知GSPNC是np完全的。本文介绍了一种有效的组合优化元启发式算法——贪心随机自适应搜索程序(GRASP, random Adaptive Search Procedure)。在一组具有不同特征和连通性要求的问题实例上获得实验结果,在所有这些情况下都获得了最优或接近最优的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Network design with node connectivity constraints
The Generalized Steiner Problem with Node-Connectivity constraints (GSPNC) consists of determining of a minimum cost subnetwork of a given network where some pairs of nodes are required to satisfy node-connectivity requirements. The GSPNC has applications to the design of low-cost communications networks which can survive failures in the servers as well as in the connection lines. The GSPNC is known to be NP-Complete. In this paper, we introduce an algorithm based on GRASP (Greedy Randomized Adaptive Search Procedure), an effective combinatorial optimization metaheuristic. Experimental results are obtained over a set of problem instances with different characteristics and connectivity requirements, obtaining in all these cases optimal or near-optimal results.
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