15. A method according to claim 14 , further comprising a step of comparing the production associated with the previously processed event with the production obtained from the hash table and a step of updating a repetition indicator in said production in the case of positive comparison for comparing the production associated with the previously processed event with the production obtained from the hash table.
14. A method according to claim 13 , wherein, in the case of negative determination at step a) or a negative comparison at step b), a production associated with the extracted event is determined from a hash table.