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Renals 1996 Signal Processing Letters.pdf326.31 kBAdobe PDFView/Open
Title: Phone deactivation pruning in large vocabulary continuous speech recognition
Authors: Renals, Steve
Issue Date: Jan-1996
Citation: IEEE Signal Processing Letters (1996) 3, 3-6.
Publisher: IEEE Signal Processing Society
Abstract: In this letter, we introduce a new pruning strategy for large vocabulary continuous speech recognition based on direct estimates of local posterior phone probabilities. This approach is well suited to hybrid connectionist/hidden Markov model systems. Experiments on the Wall Street Journal task using a 20000 word vocabulary and a trigram language model have demonstrated that phone deactivation pruning can increase the speed of recognition-time search by up to a factor of 10, with a relative increase in error rate of less than 2%.
ISSN: 1070-9908
Appears in Collections:CSTR publications

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