523 search results - page 40 / 105 » Improved Approximation Algorithms for Maximum Graph Partitio... |
FSTTCS
2010
Springer
13 years 5 months ago
2010
Springer
ABSTRACT. The maximum independent set problem (MAXIS) on general graphs is known to be NPhard to approximate within a factor of n1-, for any > 0. However, there are many "...
STOC
2010
ACM
14 years 15 days ago
2010
ACM
The Steiner tree problem is one of the most fundamental ÆÈ-hard problems: given a weighted undirected graph and a subset of terminal nodes, find a minimum weight tree spanning ...
STACS
2005
Springer
14 years 1 months ago
2005
Springer
Abstract Abstract. Recent work in the analysis of randomized approximation algorithms for NP-hard optimization problems has involved approximating the solution to a problem by the ...
STOC
2010
ACM
14 years 14 days ago
2010
ACM
We consider the problem of maintaining a large matching and a small vertex cover in a dynamically changing graph. Each update to the graph is either an edge deletion or an edge in...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
The Steiner tree problem is a classical NP-hard optimization problem with a wide range of practical applications. In an instance of this problem, we are given an undirected graph ...