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» An s -Hamiltonian Line Graph Problem
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IPL
2006
151views more  IPL 2006»
15 years 6 months ago
Approximating weighted matchings in parallel
We present an NC approximation algorithm for the weighted matching problem in graphs with an approximation ratio of (1 - ). This improves the previously best approximation ratio of...
Stefan Hougardy, Doratha E. Drake Vinkemeier
FOCS
2010
IEEE
15 years 4 months ago
Replacement Paths via Fast Matrix Multiplication
Let G be a directed edge-weighted graph and let P be a shortest path from s to t in G. The replacement paths problem asks to compute, for every edge e on P, the shortest s-to-t pat...
Oren Weimann, Raphael Yuster
CORR
2010
Springer
57views Education» more  CORR 2010»
15 years 4 months ago
Balancing congestion for unsplittable routing on a bidirected ring
Given a bidirected ring with capacities and a demand graph, we present an approximate solution to the problem of nding the minimum such that there exists a feasible routing of the...
Johanna Becker, Zsolt Csizmadia, Alexandre Laugier...
CORR
2007
Springer
122views Education» more  CORR 2007»
15 years 6 months ago
How to Complete a Doubling Metric
In recent years, considerable advances have been made in the study of properties of metric spaces in terms of their doubling dimension. This line of research has not only enhanced...
Anupam Gupta, Kunal Talwar
ESA
2008
Springer
142views Algorithms» more  ESA 2008»
15 years 8 months ago
Edge Coloring and Decompositions of Weighted Graphs
We consider two generalizations of the edge coloring problem in bipartite graphs. The first problem we consider is the weighted bipartite edge coloring problem where we are given a...
Uriel Feige, Mohit Singh