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Method of phrase verification with probabilistic confidence tagging

  • US 7,010,484 B2
  • Filed: 12/12/2001
  • Issued: 03/07/2006
  • Est. Priority Date: 08/14/2001
  • Status: Expired due to Fees
First Claim
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1. A method of phrase verification with probabilistic confidence tagging, comprising the steps of:

  • receiving an utterance;

    parsing the received utterance to find a concept sequence, in which the concept sequence comprises a plurality of concepts, each corresponding to at least one word in the utterance;

    producing a plurality of tag sequences corresponding to the concept sequence, in which each of the tag sequences comprises a plurality of tags, each indicating whether the corresponding concept is required to be verified, and corresponding possible verification results;

    calculating a first score of each of the tag sequences based on a probability corresponding to the tags therein; and

    selecting the tag sequence of the highest first score as a most probable tag sequence, and selecting the tags in the most probable tag sequence as most probable confidence tags.

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