631 search results - page 118 / 127 » Additive Approximation for Edge-Deletion Problems |
STOC
2009
ACM
14 years 9 months ago
2009
ACM
We prove strong lower bounds on integrality gaps of Sherali?Adams relaxations for MAX CUT, Vertex Cover, Sparsest Cut and other problems. Our constructions show gaps for Sherali?A...
SODA
2010
ACM
14 years 6 months ago
2010
ACM
In this paper, we consider the problem of designing incentive compatible auctions for multiple (homogeneous) units of a good, when bidders have private valuations and private budg...
SODA
2010
ACM
14 years 6 months ago
2010
ACM
We consider the following model for fire containment. We are given an undirected graph G = (V, E) with a source vertex s where the fire starts. At each time step, the firefighters...
WADS
2007
Springer
14 years 3 months ago
2007
Springer
A ball graph is an intersection graph of a set of balls with arbitrary radii. Given a real number t > 1, we say that a subgraph G′ of a graph G is a t-spanner of G, if for eve...
INFOCOM
1999
IEEE
14 years 1 months ago
1999
IEEE
-- The Internet is facing two problems simultaneously: there is a need for a faster switching/routing infrastructure, and a need to introduce guaranteed qualities of service (QoS)....