743 search results - page 65 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
COMPGEOM
2005
ACM
13 years 9 months ago
2005
ACM
Given a Euclidean graph G in Rd with n vertices and m edges we consider the problem of adding a shortcut such that the stretch factor of the resulting graph is minimized. Currentl...
MEMICS
2010
13 years 2 months ago
2010
In this paper, we propose a modification to the Boykov-Kolmogorov maximum flow algorithm [2] in order to make the algorithm preserve the topology of an initial interface. This alg...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We study integrality gaps and approximability of two closely related problems on directed graphs. Given a set V of n nodes in an underlying asymmetric metric and two specified nod...
WINE
2005
Springer
14 years 1 months ago
2005
Springer
We study the complexity issues for Walrasian equilibrium in a special case of combinatorial auction, called single-minded auction, in which every participant is interested in only ...
SOFSEM
2007
Springer
14 years 2 months ago
2007
Springer
The problem of finding k minimum energy, edge-disjoint paths in wireless networks (MEEP) arises in the context of routing and belongs to the class of range assignment problems. A ...