17. The system of claim 16 , wherein the at least one processor is configured to: determine if the recognized output for a first utterance data is correct; save the confidence score associated with each recognized output for the first utterance data that is correct; and define a respective range of confidence scores for each of the family of grammar-based language models and the family of statistical language models based upon the saved confidence scores.
17. The system of claim 16 , wherein the at least one processor is configured to: determine if the recognized output for a first utterance data is correct; save the confidence score associated with each recognized output for the first utterance data that is correct; and define a respective range of confidence scores for each of the family of grammar-based language models and the family of statistical language models based upon the saved confidence scores. 18. The system of claim 17 , wherein the at least one processor is further configured to: obtain a second confidence score associated with each recognized output for a second utterance data; compare the obtained second confidence score associated with each recognized output to the respective range of confidence scores; and determine the recognized speech based upon the comparison of the obtained second confidence scores.