A decomposition algorithm for multi-terminal networks flows

A decomposition algorithm for multi-terminal networks flows
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一种多终端网络流分解算法

DOI:
10.1016/0166-218x(86)90080-6
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发表时间:
1986
期刊:
Discret. Appl. Math.
影响因子:
--
通讯作者:
T. C. Hu
T. C. Hu
中科院分区:
--
文献类型:
--
作者:
M. Shing;T. C. Hu

文献摘要

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对于任何具有 n 个顶点和 O(n2) 边的大型网络,直接方法将网络视为一个整体,并花费 O(n4) 时间找到所有顶点对之间的最大流值。一个大的网络有时可以分为三连接的组件。本文引入了一种分解算法来利用这种情况。对于任何具有顶点、O(n2) 条边和 ptri 连接组件的网络 N,每个组件中的顶点数量大致相等,分解算法需要 O(n4/p3+n2) 时间来计算 (2n) 最大流值,这是对 O(n4) 时间直接方法的改进。
For any large networkNwithnvertices and O(n2) edges, the direct approach treats the network as a whole and takes O(n4) time to find the maximum flow values between all pairs of vertices. A large network can sometimes be divided into tri-connected component. In this paper, a decomposition algorithm is introduced to take advantage of the situation. For any networkNwhich hasnvertices, O(n2) edges andptri-connected components, with approximately equal numbers of vertices in each component, the decomposition algorithm required O(n4/p3+n2) time to compute the (2n) maximum flow values, an improvement over the O(n4) time direct approach.