144 search results - page 9 / 29 » Sparsity in time-frequency representations |
ICIP
2005
IEEE
15 years 3 months ago
2005
IEEE
This paper deals with the problem of blind source separation in fMRI data analysis. Our main contribution is to present a maximum likelihood based method to blindly separate the b...
SIGIR
2009
ACM
15 years 4 months ago
2009
ACM
It is well known that anchor text plays a critical role in a variety of search tasks performed over hypertextual domains, including enterprise search, wiki search, and web search....
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ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
The problem addressed is source localization via time-differenceof-arrival estimation in a multipath channel. Solving this localization problem typically implies cross-correlating...
ICIP
2009
IEEE
15 years 10 months ago
2009
IEEE
We propose a new color de-quantizing method for paletted images based on maximizing the sparseness of the overcomplete wavelet analysis of the estimation within the consistency se...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
In this paper, we present a novel joint sparse representation based method for acoustic signal classification with multiple measurements. The proposed method exploits the correla...