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CORR
2008
Springer
118views Education» more  CORR 2008»
15 years 7 months ago
Descent methods for Nonnegative Matrix Factorization
In this paper, we present several descent methods that can be applied to nonnegative matrix factorization and we analyze a recently developped fast block coordinate method. We als...
Ngoc-Diep Ho, Paul Van Dooren, Vincent D. Blondel
195
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COMPUTING
2006
119views more  COMPUTING 2006»
15 years 7 months ago
Sparse Grids, Adaptivity, and Symmetry
Sparse grid methods represent a powerful and efficient technique for the representation and approximation of functions and particularly the solutions of partial differential equat...
Harry Yserentant
165
Voted
TCOM
2008
116views more  TCOM 2008»
15 years 6 months ago
Bounds on the Distribution of a Sum of Correlated Lognormal Random Variables and Their Application
The cumulative distribution function (cdf) of a sum of correlated or even independent lognormal random variables (RVs), which is of wide interest in wireless communications, remain...
Chintha Tellambura
196
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TOG
2008
120views more  TOG 2008»
15 years 6 months ago
Real-time, all-frequency shadows in dynamic scenes
Shadow computation in dynamic scenes under complex illumination is a challenging problem. Methods based on precomputation provide accurate, real-time solutions, but are hard to ex...
Thomas Annen, Zhao Dong, Tom Mertens, Philippe Bek...
192
Voted
CORR
2002
Springer
132views Education» more  CORR 2002»
15 years 6 months ago
Robust Feature Selection by Mutual Information Distributions
Mutual information is widely used in artificial intelligence, in a descriptive way, to measure the stochastic dependence of discrete random variables. In order to address question...
Marco Zaffalon, Marcus Hutter