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ICASSP
2011
IEEE
13 years 5 days ago
Discrete regression methods on the cone of positive-definite matrices
We consider the problem of fitting a discrete curve to time-labeled data points on the set Pn of all n-by-n symmetric positive-definite matrices. The quality of a curve is measu...
Nicolas Boumal, Pierre-Antoine Absil
INTERSPEECH
2010
13 years 3 months ago
Reducing musical noise in blind source separation by time-domain sparse filters and split bregman method
Musical noise often arises in the outputs of time-frequency binary mask based blind source separation approaches. Postprocessing is desired to enhance the separation quality. An e...
Wenye Ma, Meng Yu, Jack Xin, Stanley Osher
INTERSPEECH
2010
13 years 3 months ago
Direct construction of compact context-dependency transducers from data
This paper describes a new method for building compact context-dependency transducers for finite-state transducer-based ASR decoders. Instead of the conventional phonetic decision...
David Rybach, Michael Riley
JMIV
2010
107views more  JMIV 2010»
13 years 3 months ago
Block Based Deconvolution Algorithm Using Spline Wavelet Packets
This paper proposes robust algorithms to deconvolve discrete noised signals and images. The solutions are derived as linear combinations of spline wavelet packets that minimize so...
Amir Averbuch, Valery A. Zheludev, Pekka Neittaanm...
JMLR
2010
110views more  JMLR 2010»
13 years 3 months ago
Exploiting Covariate Similarity in Sparse Regression via the Pairwise Elastic Net
A new approach to regression regularization called the Pairwise Elastic Net is proposed. Like the Elastic Net, it simultaneously performs automatic variable selection and continuo...
Alexander Lorbert, David Eis, Victoria Kostina, Da...