Patent Document ID: 7949525
Application ID: 12485103

Base Claim:
1. A spoken language understanding system comprising: a processor; a first module configured to control the processor to classify a set of labeled candidate utterances based on a previously trained classifier and generate classification types for each candidate utterance, each classification type having a respective confidence score; a second module configured to control the processor to sort the candidate utterances based on an analysis of the confidence score of each candidate utterance compared to a respective label of the candidate utterance, wherein the analysis is based at least in part on a Kullback-Liebler divergence; and a third module configured to control the processor to recheck candidate utterances according to when the Kullback-Liebler divergence is greater than a threshold.

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Claim 4:
4. The system of claim 1 , wherein the analysis is based on a comparison of the generated classification type of the candidate utterance and the label of the candidate utterance, and the module rechecks the candidate utterances when the generated classification type does not match the label of the candidate utterance.