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Original Articles

An approximation algorithm for max k-uncut with capacity constraints

, &
Pages 143-150 | Received 23 Nov 2009, Accepted 24 May 2011, Published online: 08 Jul 2011
 

Abstract

Given an edge-weighted graph the problem is to partition the vertices of the graph into k partitions of prescribed sizes such that the total weight of the edges within partitions are maximized. This problem is NP-complete for all k ≥ 2. We give a factor approximation where d is the ratio of the largest size and the smallest size in the partition. When the number of partitions k is 2, we give an approximation algorithm with performance ratio .

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