142 search results - page 1 / 29 » Approximate maximum weight branchings |
IPL
2006
13 years 4 months ago
2006
We consider a special subgraph of a weighted directed graph: one comprising only the k heaviest edges incoming to each vertex. We show that the maximum weight branching in this su...
ALGORITHMICA
2005
13 years 4 months ago
2005
A cycle cover of a graph is a spanning subgraph each node of which is part of exactly one simple cycle. A k-cycle cover is a cycle cover where each cycle has length at least k. Gi...
SODA
2010
ACM
14 years 2 months ago
2010
ACM
Finding the largest independent set in a graph is a notoriously difficult NP-complete combinatorial optimization problem. Moreover, even for graphs with largest degree 3, no polyn...
APPROX
2004
Springer
13 years 10 months ago
2004
Springer
We present a polynomial time 3/4-approximation algorithm for the maximum asymmetric TSP with weights zero and one. As applications, we get a 5/4-approximation algorithm for the (mi...
JCO
2010
13 years 3 months ago
2010
We consider the following planar maximum weight triangulation (MAT) problem: given a set of n points in the plane, find a triangulation such that the total length of edges in tria...