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Methods and systems for adapting a model for a speech recognition system

  • US 9,202,458 B2
  • Filed: 10/11/2010
  • Issued: 12/01/2015
  • Est. Priority Date: 02/04/2005
  • Status: Active Grant
First Claim
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1. A method for adapting a model for a speech recognition system, comprising:

  • determining an expected response;

    acquiring a speech input using a speech-input device;

    generating a hypothesis from the speech input, the hypothesis comprising words, each word having an associated confidence factor;

    with an apparatus using at least one hardware-implemented processor, automatically identifying an instance of a word (i) recognized by the system within a certain confidence factor range and (ii) included in a hypothesis generated by the system that matches the expected response as a possible error;

    adding the identified possible error to a count of possible errors; and

    using the count of possible errors, adjusting the adaption of a model for the word associated with the possible error.

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