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ISAAC
2004
Springer
121views Algorithms» more  ISAAC 2004»
14 years 3 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...
FOCS
2010
IEEE
13 years 7 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
DC
2002
13 years 9 months ago
Restoration by path concatenation: fast recovery of MPLS paths
A new general theory about restoration of network paths is first introduced. The theory pertains to restoration of shortest paths in a network following failure, e.g., we prove th...
Yehuda Afek, Anat Bremler-Barr, Haim Kaplan, Edith...
VLDB
2012
ACM
361views Database» more  VLDB 2012»
12 years 5 months ago
Answering pattern match queries in large graph databases via graph embedding
The growing popularity of graph databases has generated interesting data management problems, such as subgraph search, shortest path query, reachability verification, and pattern ...
Lei Zou, Lei Chen 0002, M. Tamer Özsu, Dongya...
PUK
2003
13 years 11 months ago
Accelerating Heuristic Search in Spatial Domains
This paper exploits the spatial representation of state space problem graphs to preprocess and enhance heuristic search engines. It combines classical AI exploration with computati...
Stefan Edelkamp, Shahid Jabbar, Thomas Willhalm