Context-dependent hidden control neutral network architecture for continuous speech recognition

  • Authors:
  • Bojan Petek;Joe Tebelskis

  • Affiliations:
  • Department of Computer Science, Faculty of Electrical Engineering and Computer Science, University of Ljubljana, Republic of Slovenia and School of Computer Science, Carnegie Mellon University, Pi ...;School of Computer Science, Carnegie Mellon University, Pittsburgh, Pennsylvania

  • Venue:
  • ICASSP'92 Proceedings of the 1992 IEEE international conference on Acoustics, speech and signal processing - Volume 1
  • Year:
  • 1992

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Abstract

We present a context-dependent, phoneme and function word based, Hidden Control Neural Network (HCNN -CDF) architecture for continuous speech recognition. The system can be seen as a large vocabulary extension of the wordbased HCNN system proposed by Levin [7]. Two main extensions towards a large vocabulary speech recognition system are presented and discussed, i.e., the context-dependent HCNN phoneme model and the context-dependent HCNN function word model. When compared to the Linked Predictive Neural Network (LPNN) system of [13]. significant savings in resource requirements and computational load for the HCNN-CDF implementation can be achieved. In speaker-dependent recognition experiments with perplexity 111, the current versions of the LPNN and HCNN-CDF systems achieve 60% and 75% word recognition accuracies, respectively.