7 search results - page 1 / 2 » Mixed norms with overlapping groups as signal priors |
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In a number of signal processing applications, problem formulations based on the 1 norm as a sparsity inducing signal prior lead to simple algorithms with good performance. Howeve...
ICASSP
2009
IEEE
14 years 2 months ago
2009
IEEE
We develop a framework to detect when certain sounds are present in a mixed audio signal. We focus on the regime where out of a large number of possible sounds, a small but unknow...
TIP
2010
13 years 2 months ago
2010
We introduce a class of inverse problem estimators computed by mixing adaptively a family of linear estimators corresponding to different priors. Sparse mixing weights are calcula...
IDA
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. We apply sparse, fast and flexible adaptive lapped orthogonal transforms to underdetermined audio source separation using the time-frequency masking framework. This norm...
ICA
2004
Springer
14 years 28 days 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...