9. The method according to claim 1 , further comprising a step of establishing a user dependant list of semantic expressions retrieved from speech material related to the activities of the user, and using said list for adapting said user profile.
9. The method according to claim 1 , further comprising a step of establishing a user dependant list of semantic expressions retrieved from speech material related to the activities of the user, and using said list for adapting said user profile. 11. The method according to claim 9 , further comprising a step of determining the frequency of use of said semantic expressions by said user and adapting said user profile according to said frequency.