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TIP
2008
118views more  TIP 2008»
13 years 5 months ago
Minimum Variance Optimal Rate Allocation for Multiplexed H.264/AVC Bitstreams
Consider the problem of transmitting multiple video streams to fulfill a constant bandwidth constraint. The available bit budget needs to be distributed across the sequences in ord...
Marco Tagliasacchi, Giuseppe Valenzise, Stefano Tu...
JMLR
2010
115views more  JMLR 2010»
13 years 3 months ago
Message-passing for Graph-structured Linear Programs: Proximal Methods and Rounding Schemes
The problem of computing a maximum a posteriori (MAP) configuration is a central computational challenge associated with Markov random fields. There has been some focus on “tr...
Pradeep Ravikumar, Alekh Agarwal, Martin J. Wainwr...
PAMI
2008
162views more  PAMI 2008»
13 years 5 months ago
Bayes Optimality in Linear Discriminant Analysis
We present an algorithm which provides the one-dimensional subspace where the Bayes error is minimized for the C class problem with homoscedastic Gaussian distributions. Our main ...
Onur C. Hamsici, Aleix M. Martínez
FOCS
2008
IEEE
13 years 6 months ago
Set Covering with our Eyes Closed
Given a universe U of n elements and a weighted collection S of m subsets of U, the universal set cover problem is to a-priori map each element u ∈ U to a set S(u) ∈ S contain...
Fabrizio Grandoni, Anupam Gupta, Stefano Leonardi,...
GLOBECOM
2006
IEEE
13 years 11 months ago
Linear Coherent Decentralized Estimation
Abstract—We consider the distributed estimation of an unknown vector signal in a resource constrained sensor network with a fusion center. Due to power and bandwidth limitations,...
Jinjun Xiao, Shuguang Cui, Zhi-Quan Luo, Andrea J....