11. The system of claim 10 , wherein the at least one processor is programmed to adjust the initial accuracy value at least in part by: calculating, for each one of the candidate phrases in the N-best set of matching candidate phrases, a numeric distance between the confidence score associated with the one of the candidate phrases and the confidence score associated with the first recognized phrase; and calculating a weighted sum of the numeric distances for the candidate phrases in the N-best set of matching candidate phrases.
10. The system of claim 9 , wherein the at least one processor is programmed to associate the first accuracy rating at least in part by: determining an initial accuracy value for the first recognized phrase, the initial accuracy value being a confidence score output by an automatic speech recognition process and being associated with a confidence that the first recognized phrase is an accurate recognition of the one or more first spoken inputs; and adjusting the initial accuracy value to determine the first accuracy rating, wherein the act of adjusting the initial accuracy value is based at least in part on confidence scores associated with candidate phrases in an N-best set of matching candidate phrases for the first recognized phrase.