发明名称 |
Automatic speech recognition method and apparatus |
摘要 |
<p>A system for calculating the look ahead probabilities at the nodes in a language model look ahead tree, wherein the words of the vocabulary of the language are located at the leaves of the tree, said apparatus comprising: means to assign a language model probability to each of the words of the vocabulary using a first low order language model; means to calculate the language look ahead probabilities for all nodes in said tree using said first language model; means to determine if the language model probability of one or more words of said vocabulary can be calculated using a higher order language model and updating said words with the higher order language model; and means to update the look ahead probability at only the nodes which are affected by the words where the language model has been updated.</p> |
申请公布号 |
GB2453366(B) |
申请公布日期 |
2011.04.06 |
申请号 |
GB20070019453 |
申请日期 |
2007.10.04 |
申请人 |
TOSHIBA RESEARCH EUROPE LIMITED |
发明人 |
CHEN LANGZHOU |
分类号 |
G10L15/18;G10L15/00;G10L15/197;G10L15/28 |
主分类号 |
G10L15/18 |
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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