Title :
A piecewise approach to connectionist networks for speech recognition
Author :
Stentiford, Fred ; Hemmings, Richard
Author_Institution :
British Telecom Lab., Ipswich, UK
Abstract :
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
Keywords :
speech recognition; connectionist networks; isolated-word speech recognition; piecewise approach; speaker independent recognition; speech recognition; three layer two dimensional network; trained net; training; Character recognition; Hardware; Laboratories; Optical character recognition software; Optical network units; Pattern recognition; Prototypes; Speech recognition; Telecommunications; Vocabulary;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266427
