Adaptive junk message filtering system

The invention relates to a filtering information system is the system comprises the filter, comprising a vacation affirmative rate and claim denial each group of the light. Is used for filtering the information service filter, the new filter according to the filter vacation affirmative rate and claim denial rate evaluating, used for determining the filter claim affirmative rate and data of false denial rate to position, determining according to the threshold the new filter new claim affirmative rate and new claim denial lead. And a threshold to the new filter; and new claim affirmative rate and new claim denial is a thought surpasses the vacation affirmation and vacation denial of the filter rate, which is the new filter.