Speech recognition system using arbitration between continuous s

Details Speech recognition system using arbitration between continuous s Speech recognition system using arbitration between continuous s

1995-06-30

1997-10-14

MacDonald, Allen R.

395 24, 395 26, G10L 506

Patent

active

056779917

ABSTRACT:
In the speech recognition system disclosed herein, an input utterance is submitted to both a large vocabulary isolated word speech recognition module and a small vocabulary continuous speech recognition module. The two recognition modules generate respective scores for identified large vocabulary models and for sequences of small vocabulary models. The score provided by the continuous speech recognizer is normalized on the basis of the length of the speech input utterance and an arbitration algorithm selects among the candidates identified by the recognition modules. Preferably, the competing scores from the two recognizers are scaled by a factor or factors empirically trained to minimize incursion by each of the vocabularies on correct results from the other vocabulary.

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