How can grammar errors be fixed?
There are various kinds of grammar errors. • 1: Error: A words in a particular slot, or a whole phrase or sentence, which is found to be spoken by users may be missing from the grammar. Solution: Add it to the grammar. • 2: Error: Two alternatives in the grammar may be quite confuseable, for example “start” and “stop” can be very difficult to distinguish. Solution 1: Include both in the grammar, and take your chances with system accuracy. Errors will be frequent in this case. Solution 2: Remove both from the grammar but include a background model in the grammar, and when ‘background speech’ is the result of recognition, respond to the user by saying “I don’t know what you said. Please try again.” Solution 3: Add both to the grammar, and whenever either one is recognized, respond to the user by saying, “You said a word that could either be A or B, and I’m not sure. Please say C or D.” For example, when the user says start or stop, prompt him or her to say ‘begin’ or ‘finish’ (or other n
