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System and method of providing an automated data-collection in spoken dialog systems

  • US 20060149555A1
  • Filed: 01/05/2005
  • Published: 07/06/2006
  • Est. Priority Date: 01/05/2005
  • Status: Active Grant
First Claim
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1. A method for gathering data for use in a spoken dialog system having a domain, the method comprising:

  • training an automatic speech recognition (ASR) module, spoken language understanding (SLU) module and dialog management (DM) module using task-independent call-types of a previous application;

    presenting an initial prompt to a user;

    recognizing a received user utterance using the ASR module;

    classifying the recognized user utterance using the SLU module;

    if the recognized user utterance is understood or classifiable with a confidence more than an acceptance threshold, then acting according to a call-type associated with the classification;

    if the recognized user utterance is not understood or classifiable to a predetermined threshold, then re-prompting the user; and

    if the recognized user utterance is not classifiable to a predetermined rejection threshold, then transferring the user to a human, wherein the received and classified user utterance is used for training the spoken dialog system.

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