523 search results - page 21 / 105 » Improved Approximation Algorithms for Maximum Graph Partitio... |
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...
WG
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We present hardness results, approximation heuristics, and exact algorithms for bottleneck labeled optimization problems arising in the context of graph theory. This long...
FSTTCS
2007
Springer
14 years 1 months ago
2007
Springer
The Directed Maximum Leaf Out-Branching problem is to find an out-branching (i.e. a rooted oriented spanning tree) in a given digraph with the maximum number of leaves. In this pa...
APPROX
2008
Springer
13 years 9 months ago
2008
Springer
We present the first 7/8-approximation algorithm for the maximum traveling salesman problem with triangle inequality. Our algorithm is deterministic. This improves over both the r...
ICALP
2011
Springer
12 years 11 months ago
2011
Springer
We present an O( √ n log n)-approximation algorithm for the problem of finding the sparsest spanner of a given directed graph G on n vertices. A spanner of a graph is a sparse ...