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An Efficient Construction of Cactus Representation for Minimum Cuts in Undirected Networks
Simon Fraser University. Centre for Systems Science
出版
Simon Fraser University, Centre for Systems Science
, 1992
URL
http://books.google.com.hk/books?id=rRLZZwEACAAJ&hl=&source=gbs_api
註釋
This paper first considers the problem of finding a maximum flow between a source vertex and a sink vertex in a capacitated network with a set of vertices and edges. The authors present a time algorithm that computes a maximum flow between two vertices, which are determined upon its completion. As an application of this algorithm, the paper considers the problem of constructing a cactus representation for all minimum cuts in a network. The previously known algorithms that construct such a representation for a capacitated network are based on the fact that the set of all minimum cuts can be divided into disjoint subsets, each of which can be obtained by solving a maximum flow problem, where both the source and sink are specified. This paper proposes a generalized algorithm in which the source and sink in each maximum flow problem can be chosen arbitrarily.