System for predicting speech recognition accuracy and development for a dialog system
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United States of America Patent
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Mar 29, 2011
Grant Date -
Aug 24, 2006
app pub date -
Feb 11, 2004
filing date -
Feb 11, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A system for developing dialog systems estimates the speech recognition accuracy achievable when using a dialog system, and the number of example input phrases required to achieve a desired speech recognition accuracy. The maximum achievable speech recognition accuracy is also predicted. The development system thereby allows a developer of a dialog system to determine how and whether to continue development of the dialog system. The development system includes a grammatical inference engine for generating a grammar for the dialog system on the basis of example input phrases, and an in-grammar speech recognition accuracy estimator for generating the estimate of speech recognition accuracy on the basis of probabilities of confusing phonemes of input phrases with phonemes of the grammar.
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