130 search results - page 14 / 26 » Wavelet based preconditioners for sparse linear systems |
SIAMSC
2010
13 years 6 months ago
2010
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...
ICCCN
2007
IEEE
14 years 2 months ago
2007
IEEE
—This paper focuses on the use of specific interleaving techniques for use in W-CDMA (Wideband Code Division Multiple Access). The linear equalization algorithm usually performs ...
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
We pose the problem of tracing traitors, who have colluded to circumvent a multimedia fingerprinting system, as a sparse underdetermined linear problem. We propose a range of det...
FCCM
2006
IEEE
14 years 2 months ago
2006
IEEE
We present an architecture and an implementation of an FPGA-based sparse matrix-vector multiplier (SMVM) for use in the iterative solution of large, sparse systems of equations ar...
FOCM
2002
13 years 7 months ago
2002
This paper is concerned with the design and analysis of adaptive wavelet methods for systems of operator equations. Its main accomplishment is to extend the range of applicability...