11. The data updating method according to claim 10 , further comprising the steps of: referring to, by the terminal, the confusion information based on a recognition result of a speech uttered by a user; adding, by the terminal, in a case of which the referred confusion information includes a word having a tendency to cause a recognition error, the word having a tendency to cause a recognition error to the recognition result, and determining, by the terminal, a score of the word having a tendency to cause a recognition error based on the confusion score.
12. The data updating method according to claim 11 , further comprising the step of changing, by the terminal, the recognition result to be output based on the score of the word determined based on the confusion score.