Method and apparatus for improving the transcription accuracy of speech recognition software

  • US 7,809,565 B2
  • Filed: 08/25/2006
  • Issued: 10/05/2010
  • Est. Priority Date: 03/01/2003
  • Status: Active Grant
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First Claim
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1. A method for operating a computerized speech recognition system using a computer-based system, said computer-based system performing the steps of:

  • loading a first vocabulary, said first vocabulary containing inputs provided from the inputs of previous users of the computer-based system;

    evaluating individual vocabulary elements within said first vocabulary to determine a first vocabulary match set, said vocabulary elements within said first vocabulary match set having match probability scores;

    weighting said match probability scores of said vocabulary elements within said first vocabulary match set with a first vocabulary weighting factor;

    loading a second vocabulary, said second vocabulary containing inputs provided from the inputs of previous users of the computer-based system;

    evaluating individual vocabulary elements within said second vocabulary to determine a second vocabulary match set, said vocabulary elements within said second vocabulary match set having match probability scores;

    combining with said computer-based system said individual vocabulary elements within said first and second vocabulary match sets so as to create a combined set of vocabulary elements, said combined set of vocabulary elements including weighted match probability scores of said vocabulary elements of said first vocabulary match set and unweighted match probability scores of said vocabulary elements of said second vocabulary match set;

    weighting said match probability scores of said combined set of vocabulary elements with a second vocabulary weighting factor; and

    selecting as a match to an input to said computerized speech recognition system a vocabulary element from said combined set of vocabulary elements based on said weighted match probability scores of said combined set of vocabulary elements.

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