144 search results - page 28 / 29 » Sparsity in time-frequency representations |
IJHPCA
2010
13 years 3 months ago
2010
Sparse matrix operations achieve only small fractions of peak CPU speeds because of the use of specialized, indexbased matrix representations, which degrade cache utilization by i...
GLOBECOM
2009
IEEE
14 years 1 days ago
2009
IEEE
—One of the key factors underlying the popularity of Low-density parity-check (LDPC) code is its iterative decoding algorithm that is amenable to efficient hardware implementati...
ICDM
2008
IEEE
13 years 11 months ago
2008
IEEE
Modern applications such as Internet traffic, telecommunication records, and large-scale social networks generate massive amounts of data with multiple aspects and high dimensiona...
ICDM
2002
IEEE
13 years 10 months ago
2002
IEEE
In this paper, we devise an efficient algorithm for clustering market-basket data. Different from those of the traditional data, the features of market-basket data are known to b...
CIMAGING
2009
13 years 6 months ago
2009
Nonlinear image reconstruction based upon sparse representations of images has recently received widespread attention with the emerging framework of compressed sensing (CS). This ...