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Apparatus and method for speech recognition using a plurality of confidence score estimation algorithms
Apparatus and method for speech recognition using a plurality of confidence score estimation algorithms
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机译:使用多个置信度得分估计算法的语音识别装置和方法
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摘要
An apparatus for speech recognition includes: a first confidence score calculator calculating a first confidence score using a ratio between a likelihood of a keyword model for feature vectors per frame of a speech signal and a likelihood of a Filler model for the feature vectors; a second confidence score calculator calculating a second confidence score by comparing a Gaussian distribution trace of the keyword model per frame of the speech signal with a Gaussian distribution trace sample of a stored corresponding keyword of the keyword model; and a determination module determining a confidence of a result using the keyword model in accordance with a position determined by the first and second confidence scores on a confidence coordinate system.
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