发明名称 |
Accuracy improvement of spoken queries transcription using co-occurrence information |
摘要 |
Techniques disclosed herein include systems and methods for voice-enabled searching. Techniques include a co-occurrence based approach to improve accuracy of the 1-best hypothesis for non-phrase voice queries, as well as for phrased voice queries. A co-occurrence model is used in addition to a statistical natural language model and acoustic model to recognize spoken queries, such as spoken queries for searching a search engine. Given an utterance and an associated list of automated speech recognition n-best hypotheses, the system rescores the different hypotheses using co-occurrence information. For each hypothesis, the system estimates a frequency of co-occurrence within web documents. Combined scores from a speech recognizer and a co-occurrence engine can be combined to select a best hypothesis with a lower word error rate. |
申请公布号 |
US8650031(B1) |
申请公布日期 |
2014.02.11 |
申请号 |
US201113194972 |
申请日期 |
2011.07.31 |
申请人 |
MAMOU JONATHAN;SETHY ABHINAV;RAMABHADRAN BHUVANA;HOORY RON;VOZILA PAUL JOSEPH;BODENSTAB NATHAN;NUANCE COMMUNICATIONS, INC. |
发明人 |
MAMOU JONATHAN;SETHY ABHINAV;RAMABHADRAN BHUVANA;HOORY RON;VOZILA PAUL JOSEPH;BODENSTAB NATHAN |
分类号 |
G10L15/00;G06F7/00;G06F17/27;G06F17/28;G06F17/30;G10L13/00;G10L13/06;G10L15/26;G10L19/12;G10L21/00;G10L21/06;G10L25/00 |
主分类号 |
G10L15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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