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    • 3. 发明授权
    • Speech recognition concept confidence measurement
    • 语音识别概念置信度测量
    • US07324940B1
    • 2008-01-29
    • US10789389
    • 2004-02-27
    • Edward S. MillerJames F. Blake, IIKyle N. DanielsonKeith C. Herold
    • Edward S. MillerJames F. Blake, IIKyle N. DanielsonKeith C. Herold
    • G10L15/00
    • G10L15/10
    • Systems and methods for determining a confidence score associated with a decoding output of a speech recognition engine. In one embodiment, a method of determining the confidence score comprises arranging time frame and acoustic score data into an array, determining a phoneme sequence in the array that yields the highest sum of acoustic scores under certain constraints, e.g., minimum number of time frames and order of phonemes in a phoneme string. A relative score is derived by applying a functional relationship between the acoustic score and different sums comprising acoustic scores from the array. The confidence score, in some embodiments, depends at least in part on the relative score and a measure of ambiguity associated with similar sounding phrases being included in different concepts of a specified grammar.
    • 用于确定与语音识别引擎的解码输出相关联的置信度得分的系统和方法。 在一个实施例中,确定置信度分数的方法包括将时间帧和声学分数数据布置到阵列中,确定阵列中的音素序列,其在某些约束下产生最高的声分数和,例如最小时间帧数, 音素字串中的音素顺序。 通过在声分数和包括来自阵列的声分数的不同和之间应用功能关系来导出相对得分。 在一些实施例中,置信度得分至少部分地依赖于相对分数和与包括在指定语法的不同概念中的类似的声音短语相关联的模糊度的度量。