发明名称 |
Method and system for generating squeezed acoustic models for specialized speech recognizer |
摘要 |
Computer-based methods and systems are provided for automatically generating, from a first speech recognizer, a second speech recognizer such that the second speech recognizer is tailored to a certain application and requires reduced resources compared to the first speech recognizer. The invention exploits the first speech recognizer's set of states si and set of probability density functions (pdfs) assembling output probabilities for an observation of a speech frame in said states si. The invention teaches a first step of generating a set of states of the second speech recognizer reduced to a subset of states of the first speech recognizer being distinctive of the certain application. The invention teaches a second step of generating a set of probability density functions of the second speech recognizer reduced to a subset of probability density functions of the first speech recognizer being distinctive of the certain application.
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申请公布号 |
US6789061(B1) |
申请公布日期 |
2004.09.07 |
申请号 |
US20000638160 |
申请日期 |
2000.08.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FISCHER VOLKER;KUNZMANN SIEGFRIED;WAAST-RICARD CLAIRE |
分类号 |
G10L15/14;(IPC1-7):G10L15/08 |
主分类号 |
G10L15/14 |
代理机构 |
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地址 |
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