A threshold of ln n for approximating set cover
Journal of the ACM (JACM)
Algorithms for connected set cover problem and fault-tolerant connected set cover problem
Theoretical Computer Science
Hi-index | 5.23 |
A flaw in the greedy approximation algorithm proposed by Zhang et al. (2009) [1] for the minimum connected set cover problem is corrected, and a stronger result on the approximation ratio of the modified greedy algorithm is established. The results are now consistent with the existing results on the connected dominating set problem which is a special case of the minimum connected set cover problem.