32 search results - page 1 / 7 » Approximate Distance Oracles for Graphs with Dense Clusters |
ISAAC
2004
Springer
15 years 2 months ago
2004
Springer
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...
115
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CORR
2012
Springer
13 years 5 months ago
2012
Springer
A distance oracle is a compact representation of the shortest distance matrix of a graph. It can be queried to retrieve approximate distances and corresponding paths between any p...
121
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FOCS
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract— Thorup and Zwick, in their seminal work, introduced the approximate distance oracle, which is a data structure that answers distance queries in a graph. For any integer...
118
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ESA
2007
Springer
15 years 3 months ago
2007
Springer
We present an experimental evaluation of an approximate distance oracle recently suggested by Thorup [1] for undirected planar graphs. The oracle uses the existence of graph separa...
STOC
2001
ACM
15 years 9 months ago
2001
ACM
Let G = (V, E) be an undirected weighted graph with |V | = n and |E| = m. Let k 1 be an integer. We show that G = (V, E) can be preprocessed in O(kmn1/k ) expected time, construc...