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FOCS
2005
IEEE
14 years 4 months ago
An Approximation Algorithm for the Disjoint Paths Problem in Even-Degree Planar Graphs
In joint work with ´Eva Tardos in 1995, we asked whether it was possible to obtain a polynomial-time, polylogarithmic approximation algorithm for the disjoint paths problem in th...
Jon M. Kleinberg
CP
2005
Springer
14 years 4 months ago
Solution Equivalent Subquadrangle Reformulations of Constraint Satisfaction Problems
Abstract. Subquadrangles are a natural way in which to represent constraints as they do not restrict any subset of their scope. There are already known methods for converting any g...
Chris Houghton, David A. Cohen
EVOW
2005
Springer
14 years 4 months ago
On the Application of Evolutionary Algorithms to the Consensus Tree Problem
Computing consensus trees amounts to finding a single tree that summarizes a collection of trees. Three evolutionary algorithms are defined for this problem, featuring characteri...
Carlos Cotta
ICNC
2005
Springer
14 years 4 months ago
Local Search for the Maximum Parsimony Problem
Abstract. Four local search algorithms are investigated for the phylogenetic tree reconstruction problem under the Maximum Parsimony criterion. A new subtree swapping neighborhood ...
Adrien Goëffon, Jean-Michel Richer, Jin-Kao H...
ICAISC
2004
Springer
14 years 4 months ago
On Application of Ant Algorithms to Non-bifurcated Multicommodity Flow Problem
Our discussion in this article centers on the application of ant algorithms to the non-bifurcated multicommodity flow problem. We propose a general framework of ant algorithm that...
Krzysztof Walkowiak