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MP
2010
154views more  MP 2010»
15 years 5 months ago
A null-space primal-dual interior-point algorithm for nonlinear optimization with nice convergence properties
Abstract. We present a null-space primal-dual interior-point algorithm for solving nonlinear optimization problems with general inequality and equality constraints. The algorithm a...
Xinwei Liu, Yaxiang Yuan
SIAMSC
2010
215views more  SIAMSC 2010»
15 years 5 months ago
A Fast Algorithm for Sparse Reconstruction Based on Shrinkage, Subspace Optimization, and Continuation
We propose a fast algorithm for solving the ℓ1-regularized minimization problem minx∈Rn µ x 1 + Ax − b 2 2 for recovering sparse solutions to an undetermined system of linea...
Zaiwen Wen, Wotao Yin, Donald Goldfarb, Yin Zhang
SIGPRO
2010
103views more  SIGPRO 2010»
15 years 5 months ago
Optimal design of high-performance separable wavelet filter banks for image coding
An optimization-based method is proposed for the design of high-performance separable wavelet filter banks for image coding. This method yields linear-phase perfect-reconstructio...
Michael D. Adams, Di Xu
GLOBECOM
2010
IEEE
15 years 4 months ago
On Comparing the Performance of Dynamic Multi-Network Optimizations
With a large variety of wireless access technologies available, multi-homed devices may strongly improve the performance and reliability of communication when using multiple networ...
Geert Jan Hoekstra, Robert D. van der Mei, J. W. B...
CORR
2011
Springer
145views Education» more  CORR 2011»
15 years 2 months ago
MDS Array Codes with Optimal Rebuilding
—MDS array codes are widely used in storage systems to protect data against erasures. We address the rebuilding ratio problem, namely, in the case of erasures, what is the the fr...
Itzhak Tamo, Zhiying Wang, Jehoshua Bruck