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» On-Line Probability, Complexity and Randomness
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STOC
2009
ACM
155views Algorithms» more  STOC 2009»
16 years 11 days ago
A nearly optimal oracle for avoiding failed vertices and edges
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
Aaron Bernstein, David R. Karger
SIGMOD
2005
ACM
144views Database» more  SIGMOD 2005»
15 years 12 months ago
Mining Periodic Patterns with Gap Requirement from Sequences
We study a problem of mining frequently occurring periodic patterns with a gap requirement from sequences. Given a character sequence S of length L and a pattern P of length l, we...
Minghua Zhang, Ben Kao, David Wai-Lok Cheung, Kevi...
SODA
2010
ACM
157views Algorithms» more  SODA 2010»
15 years 9 months ago
Testing monotone high-dimensional distributions
A monotone distribution P over a (partially) ordered domain assigns higher probability to y than to x if y x in the order. We study several natural problems concerning testing pr...
Ronitt Rubinfeld, Rocco A. Servedio
WEA
2009
Springer
139views Algorithms» more  WEA 2009»
15 years 6 months ago
Fast Algorithm for Graph Isomorphism Testing
Abstract. In this paper we present a novel approach to the graph isomorphism problem. We combine a direct approach, that tries to find a mapping between the two input graphs using...
José Luis López-Presa, Antonio Fern&...
CISS
2008
IEEE
15 years 6 months ago
Near optimal lossy source coding and compression-based denoising via Markov chain Monte Carlo
— We propose an implementable new universal lossy source coding algorithm. The new algorithm utilizes two wellknown tools from statistical physics and computer science: Gibbs sam...
Shirin Jalali, Tsachy Weissman