发明申请
US20110224982A1 AUTOMATIC SPEECH RECOGNITION BASED UPON INFORMATION RETRIEVAL METHODS
审中-公开
基于信息检索方法的自动语音识别
- 专利标题： AUTOMATIC SPEECH RECOGNITION BASED UPON INFORMATION RETRIEVAL METHODS
- 专利标题（中）： 基于信息检索方法的自动语音识别
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申请号： US12722556申请日： 2010-03-12
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公开(公告)号： US20110224982A1公开(公告)日： 2011-09-15
- 发明人: Alejandro Acero , James Garnet Droppo, III , Xiaoqiang Xiao , Geoffrey G. Zweig
- 申请人： Alejandro Acero , James Garnet Droppo, III , Xiaoqiang Xiao , Geoffrey G. Zweig
- 申请人地址： US WA Redmond
- 专利权人： c/o Microsoft Corporation
- 当前专利权人： c/o Microsoft Corporation
- 当前专利权人地址： US WA Redmond
- 主分类号： G10L15/02
- IPC分类号： G10L15/02
摘要：
Described is a technology in which information retrieval (IR) techniques are used in a speech recognition (ASR) system. Acoustic units (e.g., phones, syllables, multi-phone units, words and/or phrases) are decoded, and features found from those acoustic units. The features are then used with IR techniques (e.g., TF-IDF based retrieval) to obtain a target output (a word or words). Also described is the use of IR techniques to provide a full large vocabulary continuous speech (LVCSR) recognizer
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