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» Faster Approximation of Distances in Graphs
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134
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ISAAC
2004
Springer
121views Algorithms» more  ISAAC 2004»
15 years 9 months ago
Approximate Distance Oracles for Graphs with Dense Clusters
Let G be a graph containing N disjoint t-spanners that are inter-connected with M edges. We present an algorithm that constructs a data structure of size O(M2 + n log n) that answ...
Mattias Andersson, Joachim Gudmundsson, Christos L...
117
Voted
APPROX
2006
Springer
76views Algorithms» more  APPROX 2006»
15 years 7 months ago
Distance Approximation in Bounded-Degree and General Sparse Graphs
Sharon Marko, Dana Ron
95
Voted
EJC
2000
15 years 3 months ago
A Note on Distance Approximating Trees in Graphs
Victor Chepoi, Feodor F. Dragan
130
Voted
FOCS
2009
IEEE
15 years 10 months ago
Faster Generation of Random Spanning Trees
In this paper, we set forth a new algorithm for generating approximately uniformly random spanning trees in undirected graphs. We show how to sample from a distribution that is wi...
Jonathan A. Kelner, Aleksander Madry
FSTTCS
2010
Springer
15 years 29 days ago
Finding Sparser Directed Spanners
A spanner of a graph is a sparse subgraph that approximately preserves distances in the original graph. More precisely, a subgraph H = (V, EH ) is a k-spanner of a graph G = (V, E...
Piotr Berman, Sofya Raskhodnikova, Ge Ruan