System and method for improving performance of semantic classifiers in spoken dialog systems
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United States of America Patent
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Sep 24, 2013
Grant Date -
Oct 21, 2010
app pub date -
Apr 17, 2009
filing date -
Apr 17, 2009
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Abstract
A method and apparatus for continuously improving the performance of semantic classifiers in the scope of spoken dialog systems are disclosed. Rule-based or statistical classifiers are replaced with better performing rule-based or statistical classifiers and/or certain parameters of existing classifiers are modified. The replacement classifiers or new parameters are trained and tested on a collection of transcriptions and annotations of utterances which are generated manually or in a partially automated fashion. Automated quality assurance leads to more accurate training and testing data, higher classification performance, and feedback into the design of the spoken dialog system by suggesting changes to improve system behavior.
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