Could you possibly make the user profile (i.e. gender,dialect, language) a forced option?
I'm trying to automatically compile a database of profiles, but not all user's have given a language, making it very awkward.
If the details had to be entered for all fields, it would really help. I'm happy to share my databaseonce compiled, see more details at http://www.mathworks.com/matlabcentral/fileexchange/authors/my_fileexchange