Improving speech recognition through text-based linguistic post-processing
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United States of America Patent
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May 16, 2000
Grant Date -
N/A
app pub date -
Aug 15, 1997
filing date -
Aug 15, 1997
priority date (Note) -
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Abstract
The present invention discloses a method and system for improving speech recognition. In this invention, there is a training phase where text data generated from a speech recognition system is collected and aligned with a corresponding true transcription of the speech recognition text data. A preliminary set of correction rules are generated and observed against a corpus of fully verified text data. Rules that are applicable are validated, while invalid rules are updated. The updated rules are then applied to the parallel sample of speech recognition text data and corresponding text data, as well as the corpus of text data. The rules are examined again to determine their validity. This process continues until all of the rules have been validated or until no further progress is made. The finalized correction rules are then put into a production phase.
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