Reverse Correlation for Analyzing MLP Posterior Features in ASR

  • Authors:

  • Joel Pinto;Garimella S. Sivaram;Hynek Hermansky

  • Affiliations:

  • IDIAP Research Institute, Martigny École Polytechnique Fédérale de Lausanne, Switzerland;IDIAP Research Institute, Martigny École Polytechnique Fédérale de Lausanne, Switzerland;IDIAP Research Institute, Martigny École Polytechnique Fédérale de Lausanne, Switzerland

  • Venue:
  • TSD '08 Proceedings of the 11th international conference on Text, Speech and Dialogue
  • Year:
  • 2008

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Abstract

In this work, we investigate the reverse correlation technique for analyzing posterior feature extraction using an multilayered perceptron trained on multi-resolution RASTA (MRASTA) features. The filter bank in MRASTA feature extraction is motivated by human auditory modeling. The MLP is trained based on an error criterion and is purely data driven. In this work, we analyze the functionality of the combined system using reverse correlation analysis.