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New approximations for minimum-weighted dominating sets and minimum-weighted connected dominating sets on unit disk graphs
Minimum-weighted dominating set Minimum-weighted connected dominating
2012/12/3
Given a node-weighted graph, the minimum-weighted dominating set (MWDS) problem is to find a minimum-weighted vertex subset such that, for any vertex, it is contained in this subset or it has a neighb...
A 5 C -approximation algorithm for minimum weighted dominating set in unit disk graph
Approximation algorithm Dominating set Weighted unit disk graph
2012/11/30
We study the minimum weight dominating set problem in weighted unit disk graph, and give a polynomial time algorithm with approximation ratio 5 C , improving the previous best result of 6 C in [Yao...