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Non-leaf node penalty score assignment system and method for improving acoustic fast match speed in large vocabulary systems
Non-leaf node penalty score assignment system and method for improving acoustic fast match speed in large vocabulary systems
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机译:非词汇节点罚分分配系统和提高大型词汇系统声学快速匹配速度的方法
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摘要
A method for fast match processing, comprising two stages, a pre-processing stage and an on-line stage. The pre-processing stage comprises the steps of computing an a-priori probability of occurrence for each word from an acoustic vocabulary; deriving a penalty score for each word from said acoustic vocabulary based on each words a-priori probability of occurrence in an input text. The on-line stage operates on an input text stream, comprising the steps of, computing a path score for each word from said input text; combining the computed path score with the derived penalty score to form a combined score and testing the combined score against a threshold to determine top ranking candidate words.
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