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

Abstract

In this paper we describe a technique that allows the extraction of multiple local shift-invariant features from analysis of non-negative data of arbitrary dimensionality. Our approach employs a probabilistic latent variable model with sparsity constraints. We demonstrate its utility by performing feature extraction in a variety of domains ranging from audio to images and video.

DOI: 10.1109/ICASSP.2008.4518048

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