发明名称 |
SPEECH RECOGNITION DEVICE, ACOUSTIC MODEL LEARNING DEVICE, SPEECH RECOGNITION METHOD, AND ACOUSTIC MODEL LEARNING METHOD |
摘要 |
A speech recognition device comprises: a feature-space transformation matrix estimation unit (6) for estimating a plurality of feature-space transformation matrices corresponding to a regression tree via linear regression for feature space using a posterior probability for a first recognition result acquired by speech recognition, a regression tree created from an acoustic model, and a speech feature extracted from an input speech; and a feature conversion unit (7) for converting a speech feature using a feature-space transformation matrix determined on the basis of the acoustic model and the state series in the acoustic model from among the plurality of feature-space transformation matrices. A decoding unit (2) compares the converted speech feature with the acoustic model to perform speech recognition and thereby obtain a recognition result. |
申请公布号 |
WO2016129110(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
WO2015JP53998 |
申请日期 |
2015.02.13 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
KANAGAWA, Hiroki;TACHIOKA, Yuki |
分类号 |
G10L15/07 |
主分类号 |
G10L15/07 |
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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