发明名称 |
Method and apparatus for phonetic context adaptation for improved speech recognition |
摘要 |
The present invention provides a computerized method and apparatus for automatically generating from a first speech recognizer a second speech recognizer which can be adapted to a specific domain. The first speech recognizer can include a first acoustic model with a first decision network and corresponding first phonetic contexts. The first acoustic model can be used as a starting point for the adaptation process. A second acoustic model with a second decision network and corresponding second phonetic contexts for the second speech recognizer can be generated by re-estimating the first decision network and the corresponding first phonetic contexts based on domain-specific training data.
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申请公布号 |
US2002087314(A1) |
申请公布日期 |
2002.07.04 |
申请号 |
US20010007990 |
申请日期 |
2001.11.13 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FISCHER VOLKER;KUNZMANN SIEGFRIED;JANKE ERIC-W.;TYRRELL A. JON |
分类号 |
G10L15/06;G10L15/07;(IPC1-7):G10L15/28;G10L15/00 |
主分类号 |
G10L15/06 |
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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