Method and apparatus for adapting the language model's size in a speech recognition system
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United States of America Patent
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May 4, 1999
Grant Date -
N/A
app pub date -
Sep 25, 1997
filing date -
Nov 4, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In this speech recognition system, the size of the language model is reduced by discarding those n-grams that the acoustic part of the system can recognize most accurately without support from a language model. The n-grams can be discarded dynamically during the running of the system or during the build or setup-time of the system. Trigrams occurring infrequently in the text corpora are substituted for the discarded n-grams to increase the accuracy of the word recognitions.
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