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System and method for enhancing speech recognition accuracy using weighted grammars based on user profile including demographic, account, time and date information

  • US 9,741,340 B2
  • Filed: 11/07/2014
  • Issued: 08/22/2017
  • Est. Priority Date: 11/07/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying, via a processor, a first segment of a dialog turn associated with soliciting a first probable user response as part of a dialog with a dialog system;

    identifying, via the processor, a second segment of the dialog turn associated with soliciting a second probable user response, wherein the first segment and the second segment are further identified based on a first timing of the first probable user response and a second timing of the second probable user response;

    activating a first weighted grammar for the first segment of the dialog to process speech received during the first segment, to yield a first activated weighted grammar, wherein the first weighted grammar is weighted based on a user profile which consists of information about a number called from, demographic information, account information, a time of day, and a date;

    activating a second weighted grammar for the second segment of the dialog to process speech received during the second segment, to yield a second activated weighted grammar;

    recognizing user speech received during the first segment of the dialog using the first activated weighted grammar; and

    recognizing user speech received during the second segment of the dialog using the second activated weighted grammar.

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