1391 search results - page 47 / 279 » Optimally Sparse Frames |
ICASSP
2011
IEEE
14 years 3 months ago
2011
IEEE
Sparse representations over redundant dictionaries offer an efficient paradigm for signal representation. Recently block-sparsity has been put forward as a prior condition for so...
126
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CORR
2010
Springer
14 years 6 months ago
2010
Springer
Abstract--Based on the false assumption that multicast incapable (MI) nodes could not be traversed twice on the same wavelength, the light-tree structure was always thought to be o...
105
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CORR
2010
Springer
14 years 12 months ago
2010
Springer
Adaptive sparse coding methods learn a possibly overcomplete set of basis functions, such that natural image patches can be reconstructed by linearly combining a small subset of t...
SIAMNUM
2010
14 years 6 months ago
2010
Hyperbolic cross approximations by some classical orthogonal polynomials/functions in both bounded and unbounded domains are considered in this paper. Optimal error estimates in pr...
126
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CORR
2011
Springer
14 years 6 months ago
2011
Springer
We analyze a class of estimators based on a convex relaxation for solving highdimensional matrix decomposition problems. The observations are the noisy realizations of the sum of ...