TR2010-023

Spectrogram Dimensionality Reduction with Independence Constraints


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Abstract:

We propose an algorithm to find a low-dimensional decomposition of a spectrogram by formulating this as a regularized non-negative matrix factorization (NMF) problem with a regularization term chosen to encourage independence. This algorithm provides a better decomposition than standard NMF when the underlying sources are independent. It makes better use of additional observation streams than previous nonnegative ICA algorithms.

 

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    •  NEWS    ICASSP 2010: 9 publications by Anthony Vetro, Shantanu D. Rane and Petros T. Boufounos
      Date: March 14, 2010
      Where: IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
      MERL Contacts: Anthony Vetro; Petros T. Boufounos
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