293 search results - page 5 / 59 » Fixed-Parameter Algorithms in Phylogenetics |
ALGORITHMICA
2010
13 years 7 months ago
2010
It is known to be NP-hard to decide whether a graph can be made chordal by the deletion of k vertices or by the deletion of k edges. Here we present a uniformly polynomial-time alg...
COCO
1992
Springer
13 years 11 months ago
1992
Springer
We give a novel characterization of W[1], the most important fixed-parameter intractability class in the W-hierarchy, using Boolean circuits that consist solely of majority gates. ...
ESA
2009
Springer
14 years 2 months ago
2009
Springer
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...
ALGORITHMICA
2008
13 years 7 months ago
2008
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...
CIAC
2006
Springer
13 years 11 months ago
2006
Springer
Complementing recent progress on classical complexity and polynomial-time approximability of feedback set problems in (bipartite) tournaments, we extend and partially improve fixed...