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Apparatus and method to reduce recognition errors through context relations among dialogue turns

  • US 7,890,329 B2
  • Filed: 08/01/2007
  • Issued: 02/15/2011
  • Est. Priority Date: 03/03/2007
  • Status: Active Grant
First Claim
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1. An apparatus to reduce recognition error through context relation among dialogue turns, comprising:

  • a rule storage unit having a rule set containing one or more rules, each rule being represented with the dialogue turn as basic element;

    an evolutionary rule generation module connected to said rule storage unit, for training said rule set by performing an evolutionary adaptation on a dialogue log to obtain a trained rule set; and

    a rule trigger unit connected to said rule storage unit, based on said trained rule set and the dialogue history of a plurality of previous dialogue turns, said rule trigger unit selecting at least a rule and the corresponding confidence measure from said trained set for providing an automatic speech recognition system to reevaluate the speech recognition.

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