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METHOD AND APPARATUS FOR MEASURING CONFIDENCE ABOUT SPEECH RECOGNITION IN SPEECH RECOGNIZER
METHOD AND APPARATUS FOR MEASURING CONFIDENCE ABOUT SPEECH RECOGNITION IN SPEECH RECOGNIZER
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机译:语音识别器中语音识别信心度的测量方法和装置
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摘要
A method of measuring confidence of speech recognition in a speech recognizer compares a phase change point with a phoneme string change point and uses a difference between the phase change point and the phoneme string change point and a likelihood ratio, and an apparatus using the method is provided. That is, the method of the present invention includes detecting a phase change point of a speech signal; detecting a phoneme string change point according to a result of speech recognition; calculating confidence of the speech recognition by using a difference between the detected phase change point and phoneme string change point. According to the present invention, a performance of measuring confidence may become improved by simultaneously taking not only a likelihood ratio, but also taking a comparison result of a phase change point with a phoneme string change point into consideration.
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