25. The system of claim 24 , wherein the search term is categorized as a type that is excluded from registration if the ratio of the number of times the search result was selected subsequent to receiving the search term to the number of times that the search term appears in the search history does not exceed the third threshold value.
24. The system of claim 23 , wherein the search term is categorized as a type that is provided for registration to a user with recognized association with the search term if the ratio of the number of times the search result was selected subsequent to receiving the search term to the number of times that the search term appears in the search history exceeds a third threshold value greater than the first threshold value.