Approximation algorithm for the minimum weight connected k-subgraph cover problem
โ Scribed by Zhang, Yaping; Shi, Yishuo; Zhang, Zhao
- Book ID
- 123549544
- Publisher
- Elsevier Science
- Year
- 2014
- Tongue
- English
- Weight
- 212 KB
- Volume
- 535
- Category
- Article
- ISSN
- 0304-3975
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A linear time 5 3 -approximation algorithm is presented for the NP-hard problem of finding a minimum strongly-connected spanning subgraph. It is based on cycle contraction that was first introduced by Khuller, Raghavachari and Young [SIAM J. Comput. 24 (1995) 859-872]. We improve their result by con
Consider the minimum size k-edge-connected spanning subgraph problem: given a positive integer k and a k-edge-connected graph G, find a k-edge-connected spanning subgraph of G with the minimum number of edges. This problem is known to be NP-complete. Khuller and Raghavachari presented the first algo