14. The article of manufacture of claim 12 , wherein the benchmark utterances were made by users in a category of users, and wherein the ASR system is configured to transcribe new utterances made by users in the category of users.
17. The article of manufacture of claim 14 , wherein the benchmark utterances were made by users from a particular geographic location, and wherein the ASR system is configured to transcribe new utterances made by users from the particular geographic location.