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A piecewise approach to connectionist networks for speech recognition

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2 Author(s)
Stentiford, F. ; British Telecom Lab., Ipswich, UK ; Hemmings, R.

A three-layer two-dimensional connectionist network is described. The network is structured in such a way that the trained net can be extended in both dimensions without losing its existing knowledge. Noncontributing or low-contributing units can be identified and pruned from the net to improve efficiency. These features enable the size of the net to be tailored to a particular task without the need for time-consuming retraining from scratch. A net of this type has been applied to the task of speaker-independent isolated-word speech recognition, with a vocabulary consisting of the digits `zero' to `nine' plus silence

Published in:

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Date of Conference:

23-26 May 1989