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SIAMIS
2011
13 years 1 months ago
Gradient-Based Methods for Sparse Recovery
The convergence rate is analyzed for the sparse reconstruction by separable approximation (SpaRSA) algorithm for minimizing a sum f(x) + ψ(x), where f is smooth and ψ is convex, ...
William W. Hager, Dzung T. Phan, Hongchao Zhang
TCOM
2010
114views more  TCOM 2010»
13 years 1 months ago
Achieving near-capacity performance on multiple-antenna channels with a simple concatenation scheme
This paper proposes a capacity-approaching, yet simple scheme for multi-input multiple-output (MIMO) channels. The proposed scheme is based on a concatenation of a mixture of short...
Nghi H. Tran, Tho Le-Ngoc, Tad Matsumoto, Ha H. Ng...
STOC
2009
ACM
159views Algorithms» more  STOC 2009»
14 years 7 months ago
Message passing algorithms and improved LP decoding
Linear programming decoding for low-density parity check codes (and related domains such as compressed sensing) has received increased attention over recent years because of its p...
Sanjeev Arora, Constantinos Daskalakis, David Steu...
ICC
2007
IEEE
200views Communications» more  ICC 2007»
14 years 1 months ago
Optimal Packet Scheduling for Multi-Description Multi-Path Video Streaming Over Wireless Networks
—As developments in wireless networks continue, there is an increasing expectation with regard to supporting highquality real-time video streaming service in such networks. The r...
Gui Xie, M. N. S. Swamy, M. Omair Ahmad
ISMB
2000
13 years 8 months ago
Analysis of Gene Expression Microarrays for Phenotype Classification
Several microarray technologies that monitor the level of expression of a large number of genes have recently emerged. Given DNA-microarray data for a set of cells characterized b...
Andrea Califano, Gustavo Stolovitzky, Yuhai Tu