Research on Forecasting the Dangerous Level to Illegal Email Based on Integrated Immune Evolution Algorithm

TF-IDF formula can represent effectively the text characteristics; the immunity system (TIS) has many characteristics, including the distributional protection, multiplicity, auto-adapted in the information processing, it is robust and expansibility, memory ability, fault-tolerant ability, dynamic stability as well as exceptionally examines. The paper analyzes characteristics of many illegal emails and researches artificial immune method, and introduces an artificial immune method of forecasting the dangerous level of illegal email, and gets good result