28 search results - page 1 / 6 » On sparse representations of linear operators and the approx... |
CISS
2008
IEEE
14 years 1 months ago
2008
IEEE
—Thus far, sparse representations have been exploited largely in the context of robustly estimating functions in a noisy environment from a few measurements. In this context, the...
ICASSP
2009
IEEE
14 years 1 months ago
2009
IEEE
Compressive sensing (CS) has been proposed for signals with sparsity in a linear transform domain. We explore a signal dependent unknown linear transform, namely the impulse respo...
AMAST
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. We present a static analysis technique for modeling and approximating the long-run resource usage of programs. The approach is based on a quantitative semantic framework ...
JMLR
2010
13 years 1 months ago
2010
This paper considers the problem of estimating a high dimensional inverse covariance matrix that can be well approximated by "sparse" matrices. Taking advantage of the c...
LCPC
1998
Springer
13 years 11 months ago
1998
Springer
There is a class of sparse matrix computations, such as direct solvers of systems of linear equations, that change the fill-in (nonzero entries) of the coefficient matrix, and invo...