State transition model design method and voice recognition method and apparatus using same
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Jun 18, 1996
filing date -
Jun 19, 1995
priority date (Note) -
Expired
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Abstract
A method of designing a state transition model capable of high speed voice recognition and a voice recognition method and apparatus using the state transition model is provided. The methods provide a state transition model in which a state shared structure of the state transition model is designed. The method includes a step of setting the states of a triphone state transition model in an acoustic space as initial clusters, a clustering step of generating a cluster containing the initial clusters by top-down clustering, a step of determining a state shared structure by assigning a short distance cluster among clusters generated by the clustering step, to the state transition model, and a step of learning a state shared model by analyzing the states of the triphones in accordance with the determined state shared structure.
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