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» Exact Algorithms for the Vertex Separator Problem in Graphs
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WEA
2005
Springer
117views Algorithms» more  WEA 2005»
14 years 1 months ago
Vertex Cover Approximations: Experiments and Observations
The vertex cover problem is a classic NP-complete problem for which the best worst-case approximation ratio is roughly 2. In this paper, we use a collection of simple reductions, e...
Eyjolfur Asgeirsson, Clifford Stein
IPL
2010
134views more  IPL 2010»
13 years 3 months ago
Parameterized algorithm for eternal vertex cover
In this paper we initiate the study of a "dynamic" variant of the classical Vertex Cover problem, the Eternal Vertex Cover problem introduced by Klostermeyer and Mynhard...
Fedor V. Fomin, Serge Gaspers, Petr A. Golovach, D...
INFORMS
2010
147views more  INFORMS 2010»
13 years 5 months ago
Exact Algorithms for the Quadratic Linear Ordering Problem
The quadratic linear ordering problem naturally generalizes various optimization problems, such as bipartite crossing minimization or the betweenness problem, which includes linear...
Christoph Buchheim, Angelika Wiegele, Lanbo Zheng
IWOCA
2009
Springer
153views Algorithms» more  IWOCA 2009»
14 years 3 months ago
Feedback Vertex Set on Graphs of Low Cliquewidth
The Feedback Vertex Set problem asks whether a graph contains q vertices meeting all its cycles. This is not a local property, in the sense that we cannot check if q vertices meet...
Binh-Minh Bui-Xuan, Jan Arne Telle, Martin Vatshel...
FCT
1993
Springer
14 years 16 days ago
Generalized Topological Sorting in Linear Time
The generalized topological sorting problem takes as input a positive integer k and a directed, acyclic graph with some vertices labeled by positive integers, and the goal is to la...
Torben Hagerup, Martin Maas