32 search results - page 5 / 7 » Directed Feedback Vertex Set is Fixed-Parameter Tractable |
CORR
2010
Springer
13 years 4 months ago
2010
Springer
We introduce a new technique for proving kernelization lower bounds, called cross-composition. A classical problem L cross-composes into a parameterized problem Q if an instance o...
FSTTCS
2009
Springer
14 years 1 months ago
2009
Springer
A tournament T = (V, A) is a directed graph in which there is exactly one arc between every pair of distinct vertices. Given a digraph on n vertices and an integer parameter k, th...
SIGECOM
2009
ACM
14 years 1 months ago
2009
ACM
The Target Set Selection problem proposed by Kempe, Kleinberg, and Tardos, gives a nice clean combinatorial formulation for many problems arising in economy, sociology, and medicin...
ICALP
2005
Springer
14 years 26 days ago
2005
Springer
In this paper we initiate the study of the AND-OR directed feedback vertex set problem from the viewpoint of approximation algorithms. This AND-OR feedback vertex set problem is m...
DAM
2008
13 years 7 months ago
2008
Given an edge- or vertex-weighted graph or digraph and a list of source-sink pairs, the minimum multicut problem consists in selecting a minimum weight set of edges or vertices wh...