Sparse and shift-invariant feature extraction from non-negative data

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@article{Smaragdis2008SparseAS, title={Sparse and shift-invariant feature extraction from non-negative data}, author={Paris Smaragdis and Bhiksha Raj and Madhusudana V. S. Shashanka}, journal={2008 IEEE International Conference on Acoustics, Speech and Signal Processing}, year={2008}, pages={2069-2072} }