×

Pronunciation learning through correction logs

  • US 9,947,317 B2
  • Filed: 02/13/2017
  • Issued: 04/17/2018
  • Est. Priority Date: 02/21/2014
  • Status: Active Grant
First Claim
Patent Images

1. A method for unsupervised learning of new pronunciations for speech recognition based on a plurality of recognition events, the method comprising:

  • extracting a first recognition event from a plurality of recognition events, wherein the first recognition event comprises a failed voice task according to the plurality of definitions for one or more successfully completed tasks;

    extracting a second recognition event from the plurality of recognition events, wherein the second recognition event comprises a successfully completed task according to a plurality of definitions for one or more successfully completed tasks;

    determining the first recognition event as a misrecognized spoken utterance of at least one predicted intended word derived from the successfully completed task based at least in part on a plurality of features for misrecognition of speech;

    associating the misrecognized spoken utterance and the at least one predicted intended word based on at least one feature;

    generating at least one pronunciation from the misrecognized spoken utterance and the at least one predicted intended word;

    based at least in part on the at least one pronunciation, determining a new pronunciation; and

    applying said new pronunciation output for unsupervised learning to train speech recognition for processing subsequent voice recognition events.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×