173 search results - page 13 / 35 » Complexity and Approximation Results for the Connected Verte... |
JCT
2008
13 years 8 months ago
2008
Given an undirected hypergraph and a subset of vertices S V with a specified root vertex r S, the STEINER ROOTED-ORIENTATION problem is to find an orientation of all the hypered...
ISAAC
2010
Springer
13 years 6 months ago
2010
Springer
We study the NP-complete TARGET SET SELECTION (TSS) problem occurring in social network analysis. Complementing results on its approximability and extending results for its restric...
STOC
2010
ACM
14 years 1 months ago
2010
ACM
There has been much progress on geometric set cover problems, but most known techniques only apply to the unweighted setting. For the weighted setting, very few results are known ...
JACM
1998
13 years 8 months ago
1998
Given a collection Ᏺ of subsets of S ϭ {1, . . . , n}, set cover is the problem of selecting as few as possible subsets from Ᏺ such that their union covers S, and max k-cover ...
COCOON
2005
Springer
14 years 2 months ago
2005
Springer
To monitor an electric power system by placing as few phase measurement units (PMUs) as possible is closely related to the famous vertex cover problem and domination problem in gr...