495 search results - page 17 / 99 » Sparse representation algorithms based on mean-field approxi... |
225
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SIAMIS
2011
14 years 11 months ago
2011
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, ...
161
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CORR
2011
Springer
14 years 8 months ago
2011
Springer
We initiate the study of sparse recovery problems under the Earth-Mover Distance (EMD). Specifically, we design a distribution over m × n matrices A such that for any x, given A...
126
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TIP
2011
14 years 11 months ago
2011
The Easy Path Wavelet Transform (EPWT) has recently been proposed by one of the authors as a tool for sparse representations of bivariate functions from discrete data, in particul...
149
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DCC
2004
IEEE
16 years 3 months ago
2004
IEEE
It is well-known that wavelet transforms provide sparse decompositions over many types of image regions but not over image singularities/edges that manifest themselves along curve...
180
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PPOPP
2011
ACM
14 years 7 months ago
2011
ACM
The sparse grid discretization technique enables a compressed representation of higher-dimensional functions. In its original form, it relies heavily on recursion and complex data...