51 search results - page 7 / 11 » Improved upper bounds for vertex cover |
COMBINATORICS
1999
13 years 6 months ago
1999
Let G = (V, E) be an undirected graph. Let C be a subset of vertices that we shall call a code. For any vertex v V , the neighbouring set N(v, C) is the set of vertices of C at d...
CORR
2011
Springer
13 years 1 months ago
2011
Springer
In this paper, we consider approximability issues of the following four problems: triangle packing, full sibling reconstruction, maximum profit coverage and 2-coverage. All of th...
COMPGEOM
2009
ACM
14 years 1 months ago
2009
ACM
We consider the following combinatorial problem: given a set of n objects (for example, disks in the plane, triangles), and an integer L ≥ 1, what is the size of the smallest su...
IPCO
2007
13 years 8 months ago
2007
Following the well-studied two-stage optimization framework for stochastic optimization [15, 18], we study approximation algorithms for robust two-stage optimization problems with ...
EVOW
2007
Springer
14 years 26 days ago
2007
Springer
Many instances of NP-hard problems can be solved efficiently if the treewidth of their corresponding graph is small. Finding the optimal tree decompositions is an NP-hard problem a...