1582 search results - page 24 / 317 » On sparse signal representations |
114
click to vote
CORR
2011
Springer
14 years 3 months ago
2011
Springer
—In this paper, we introduce a sparse approximation property of order s for a measurement matrix A: xs 2 ≤ D Ax 2 + β σs(x) √ s for all x, where xs is the best s-sparse app...
118
click to vote
CORR
2011
Springer
14 years 6 months ago
2011
Springer
— We address the sparse signal recovery problem in the context of multiple measurement vectors (MMV) when elements in each nonzero row of the solution matrix are temporally corre...
CORR
2008
Springer
14 years 12 months ago
2008
Springer
We study the information-theoretic limits of exactly recovering the support set of a sparse signal, using noisy projections defined by various classes of measurement matrices. Our ...
110
click to vote
ICMLA
2009
14 years 9 months ago
2009
Sparse representation for machine learning has been exploited in past years. Several sparse representation based classification algorithms have been developed for some application...
101
click to vote
ICASSP
2010
IEEE
15 years 14 hour ago
2010
IEEE
We propose an ℓ1 criterion for dictionary learning for sparse signal representation. Instead of directly searching for the dictionary vectors, our dictionary learning approach i...