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ALGORITHMICA
2010
127views more  ALGORITHMICA 2010»
13 years 7 months ago
An Algorithm for Minimum Cost Arc-Connectivity Orientations
Given a 2k-edge-connected undirected graph, we consider to find a minimum cost orientation that yields a k-arc-connected directed graph. This minimum cost k-arc-connected orientat...
Satoru Iwata, Yusuke Kobayashi
JCB
2007
168views more  JCB 2007»
13 years 7 months ago
Fast Molecular Shape Matching Using Contact Maps
In this paper, we study the problem of computing the similarity of two protein structures ring their contact-map overlap. Contact-map overlap abstracts the problem of computing th...
Pankaj K. Agarwal, Nabil H. Mustafa, Yusu Wang
LATIN
2010
Springer
14 years 2 months ago
Optimal Polygonal Representation of Planar Graphs
In this paper, we consider the problem of representing graphs by polygons whose sides touch. We show that at least six sides per polygon are necessary by constructing a class of pl...
Emden R. Gansner, Yifan Hu, Michael Kaufmann, Step...
SODA
2010
ACM
216views Algorithms» more  SODA 2010»
14 years 5 months ago
On linear and semidefinite programming relaxations for hypergraph matching
The hypergraph matching problem is to find a largest collection of disjoint hyperedges in a hypergraph. This is a well-studied problem in combinatorial optimization and graph theo...
Yuk Hei Chan, Lap Chi Lau
ESA
2006
Springer
96views Algorithms» more  ESA 2006»
13 years 11 months ago
Finite Termination of "Augmenting Path" Algorithms in the Presence of Irrational Problem Data
This paper considers two similar graph algorithms that work by repeatedly increasing "flow" along "augmenting paths": the Ford-Fulkerson algorithm for the maxi...
Brian C. Dean, Michel X. Goemans, Nicole Immorlica