7 search results - page 1 / 2 » Mixed norms with overlapping groups as signal priors |
ICASSP
2011
IEEE
12 years 8 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
13 years 11 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
12 years 11 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
13 years 11 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
13 years 10 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...