1. A method, comprising: transcribing via a processor at least a portion of a plurality of spoken utterances occurring during a call; assigning each of the plurality of spoken utterances with a corresponding set of first classifications; determining a confidence rating associated with each of the plurality of spoken utterances and the assigned set of first 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 first classifications and the corresponding plurality of spoken utterances to a training data set.