Knowledge-based strategies applied to N-best lists in automatic speech recognition systems
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United States of America Patent
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Jul 26, 2005
Grant Date -
Aug 14, 2003
app pub date -
Dec 29, 1998
filing date -
Dec 29, 1998
priority date (Note) -
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Abstract
A highly accurate technique for recognizing spoken digit strings is described. A spoken digit string is received and analyzed by a speech recognizer, which generates a list of hypothesized digit strings arranged in ranked order based on a likelihood of matching the spoken digit string. The individual hypothesized strings are then analyzed in order beginning with the hypothesized string having the greatest likelihood of matching the spoken string to determine whether they satisfy a given constraint. The first hypothesized string in the list satisfying the constraint is selected as the recognized string.
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