743 search results - page 47 / 149 » Approximation Algorithms for Graph Homomorphism Problems |
SIGECOM
2006
ACM
14 years 1 months ago
2006
ACM
We present approximation and online algorithms for a number of problems of pricing items for sale so as to maximize seller’s revenue in an unlimited supply setting. Our first r...
ALGORITHMICA
2004
13 years 7 months ago
2004
We consider the Chromatic Sum Problem on bipartite graphs which appears to be much harder than the classical Chromatic Number Problem. We prove that the Chromatic Sum Problem is NP...
TCBB
2010
13 years 2 months ago
2010
Recent techniques increase rapidly the amount of our knowledge on interactions between proteins. The interpretation of these new information depends on our ability to retrieve kno...
SIAMCOMP
2010
13 years 6 months ago
2010
Abstract. We study the Edge Disjoint Paths (EDP) problem in undirected graphs: Given a graph G with n nodes and a set T of pairs of terminals, connect as many terminal pairs as pos...
FOCS
2003
IEEE
14 years 1 months ago
2003
IEEE
In this paper, we give the rst constant-factor approximationalgorithmfor the rooted Orienteering problem, as well as a new problem that we call the Discounted-Reward TSP, motivate...