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ESA
2007
Springer
188views Algorithms» more  ESA 2007»
16 years 26 days ago
Fast and Compact Oracles for Approximate Distances in Planar Graphs
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...
Laurent Flindt Muller, Martin Zachariasen
ISAAC
2007
Springer
156views Algorithms» more  ISAAC 2007»
16 years 25 days ago
Approximate Range Searching in External Memory
In this paper, we present two linear-size external memory data structures for approximate range searching. Our first structure, the BAR-B-tree, stores a set of N points in Rd and ...
Micha Streppel, Ke Yi
SPIRE
2007
Springer
16 years 24 days ago
Approximate String Matching with Lempel-Ziv Compressed Indexes
Abstract. A compressed full-text self-index for a text T is a data structure requiring reduced space and able of searching for patterns P in T. Furthermore, the structure can repro...
Luís M. S. Russo, Gonzalo Navarro, Arlindo ...
WDAG
2007
Springer
79views Algorithms» more  WDAG 2007»
16 years 24 days ago
A Simple Population Protocol for Fast Robust Approximate Majority
We describe and analyze a 3-state one-way population protocol to compute approximate majority in the model in which pairs of agents are drawn uniformly at random to interact. Given...
Dana Angluin, James Aspnes, David Eisenstat
WECWIS
2005
IEEE
137views ECommerce» more  WECWIS 2005»
16 years 8 days ago
Using Singular Value Decomposition Approximation for Collaborative Filtering
Singular Value Decomposition (SVD), together with the Expectation-Maximization (EM) procedure, can be used to find a low-dimension model that maximizes the loglikelihood of obser...
Sheng Zhang, Weihong Wang, James Ford, Fillia Make...