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Journal of Computer Science and Technology

, Volume 19, Issue 6, pp 782–786 | Cite as

Approximation algorithm for weighted weak vertex cover

  • Yong Zhang
  • Hong Zhu
Algorithms and Computational Complexity

Abstract

The problem of efficiently monitoring the network flow is regarded as the problem to find out the minimum weighted weak vertex cover set for a given graphG=(V,E). In this paper, we give an approximation algorithm to solve it, which has the approximation ratio lnd+1, whered is the maximum degree of the vertex in graphG, and improve the previous work.

Keywords

weak vertex cover NP-hard approximation algorithm 

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Copyright information

© Science Press, Beijing China and Allerton Press Inc. 2004

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringFudan UniversityShanghaiP.R. China
  2. 2.Laboratory for Intelligent Information ProcessingFudan UniversityShanghaiP.R. China

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