441 search results - page 24 / 89 » Sparse Recovery Using Sparse Random Matrices |
ICPR
2010
IEEE
14 years 12 months ago
2010
IEEE
In this paper we investigate the usage of random ortho-projections in the compression of sparse feature vectors. The study is carried out by evaluating the compressed features in ...
ICCS
2007
Springer
15 years 4 months ago
2007
Springer
Abstract. Hierarchical (H)-matrices approximate full or sparse matrices using a hierarchical data sparse format. The corresponding H-matrix arithmetic reduces the time complexity o...
IRREGULAR
1995
Springer
15 years 1 months ago
1995
Springer
Sparse matrix problems are di cult to parallelize e ciently on message-passing machines, since they access data through multiple levels of indirection. Inspector executor strategie...
CORR
2006
Springer
14 years 10 months ago
2006
Springer
We propose a new algorithm to solve sparse linear systems of equations over the integers. This algorithm is based on a p-adic lifting technique combined with the use of block matr...
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ICPP
2008
IEEE
15 years 4 months ago
2008
IEEE
Abstract—The Sparse Matrix-Vector Multiplication kernel exhibits limited potential for taking advantage of modern shared memory architectures due to its large memory bandwidth re...