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COMPGEOM
2006
ACM
13 years 11 months ago
Minimum weight triangulation is NP-hard
A triangulation of a planar point set S is a maximal plane straight-line graph with vertex set S. In the minimum weight triangulation (MWT) problem, we are looking for a triangula...
Wolfgang Mulzer, Günter Rote
MST
2010
86views more  MST 2010»
13 years 3 months ago
New Fixed-Parameter Algorithms for the Minimum Quartet Inconsistency Problem
Maw-Shang Chang, Chuang-Chieh Lin, Peter Rossmanit...
ALGORITHMICA
2008
111views more  ALGORITHMICA 2008»
13 years 5 months ago
Fixed-Parameter Complexity of Minimum Profile Problems
The profile of a graph is an integer-valued parameter defined via vertex orderings; it is known that the profile of a graph equals the smallest number of edges of an interval supe...
Gregory Gutin, Stefan Szeider, Anders Yeo
DAM
2008
140views more  DAM 2008»
13 years 4 months ago
The minimum spanning strong subdigraph problem is fixed parameter tractable
A digraph D is strong if it contains a directed path from x to y for every choice of vertices x, y in D. We consider the problem (MSSS) of finding the minimum number of arcs in a ...
Jørgen Bang-Jensen, Anders Yeo
ESA
2009
Springer
129views Algorithms» more  ESA 2009»
13 years 11 months ago
Constant Ratio Fixed-Parameter Approximation of the Edge Multicut Problem
Abstract. The input of the Edge Multicut problem consists of an undirected graph G and pairs of terminals {s1, t1}, . . . , {sm, tm}; the task is to remove a minimum set of edges s...
Dániel Marx, Igor Razgon