1. A method, comprising: transcribing via a processor a plurality of spoken utterances occurring during a call; assigning each of the plurality of spoken utterances with a corresponding set of classifications; determining a confidence rating associated with each of the plurality of spoken utterances and the assigned set of classifications; and performing at least one of: reclassifying the plurality of spoken utterances with new classifications based on at least one additional classification operation, and adding the assigned classifications and the corresponding plurality of spoken utterances to a training data set.