1582 search results - page 199 / 317 » On sparse signal representations |
162
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ICA
2004
Springer
15 years 12 months ago
2004
Springer
We consider the Blind Source Separation problem of linear mixtures with singular matrices and show that it can be solved if the sources are sufficiently sparse. More generally, we ...
180
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ICA
2004
Springer
15 years 12 months ago
2004
Springer
Robust clustering of data into overlapping linear subspaces is a common problem. Here we consider one-dimensional subspaces that cross the origin. This problem arises in blind sour...
183
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NIPS
2007
15 years 8 months ago
2007
We construct a biologically motivated stochastic differential model of the neural and hemodynamic activity underlying the observed Blood Oxygen Level Dependent (BOLD) signal in Fu...
175
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CORR
2010
Springer
15 years 6 months ago
2010
Springer
In the theory of compressed sensing, restricted isometry analysis has become a standard tool for studying how efficiently a measurement matrix acquires information about sparse an...
144
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ICISP
2010
Springer
15 years 5 months ago
2010
Springer
The tracking of prominent oscillations with time-varying frequencies is a common task in many signal processing applications. Therefore, efficient methods are needed to meet preci...