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NCA
2005
IEEE
14 years 1 months ago
A Wide Area Network Simulation of Single-Round Group Membership Algorithms
A recent theoretical result proposed Sigma, a novel GM protocol that forms views using a singleround of message exchange. Prior GM protocols have required more rounds in the worst...
Roger Khazan, Sophia Yuditskaya
LATIN
2010
Springer
14 years 19 days ago
Prize-Collecting Steiner Networks via Iterative Rounding
In this paper we design an iterative rounding approach for the classic prize-collecting Steiner forest problem and more generally the prize-collecting survivable Steiner network de...
MohammadTaghi Hajiaghayi, Arefeh A. Nasri
ECCV
2010
Springer
13 years 10 months ago
A Novel Parameter Estimation Algorithm for the Multivariate t-Distribution and Its Application to Computer
Abstract. We present a novel algorithm for approximating the parameters of a multivariate t-distribution. At the expense of a slightly decreased accuracy in the estimates, the prop...
SIAMSC
2008
167views more  SIAMSC 2008»
13 years 7 months ago
Low-Dimensional Polytope Approximation and Its Applications to Nonnegative Matrix Factorization
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
Moody T. Chu, Matthew M. Lin
ICML
2003
IEEE
14 years 8 months ago
Modified Logistic Regression: An Approximation to SVM and Its Applications in Large-Scale Text Categorization
Logistic Regression (LR) has been widely used in statistics for many years, and has received extensive study in machine learning community recently due to its close relations to S...
Jian Zhang, Rong Jin, Yiming Yang, Alexander G. Ha...