Method and system for filtering spam

Abstract

The present invention provides a method and a system for filtering spam, characterized in that the method includes the following steps: a usage pattern in training data is mined out by adopting a data mining method in spam detection to establish an autogenous pattern set and an alien pattern set and to define attributes in the pattern sets; then, digitalized representation is adopted to map phenotype into genotype, which is a coding process; then, a negative selection algorithm and a clonal selection algorithm are combined to produce new antibodies so as to perform detecting and filtering on the spam, thereby reducing cost of mail filtering and improving efficiency of an intrusion detection system.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a spam filtering method and system. Background technique [0002] Spam is collected and distributed by using special mail address search software and mail mass sending software. A mail address search software can search tens of thousands to hundreds of thousands of useful mail addresses each time. The software can send millions of spam emails with the same or different content every day. For this kind of automated spam generation, manual means of deletion seems helpless, and a kind of technical means must be used to carry out anti-spam work. [0003] (1) black and white list [0004] Black and white list is the most traditional way of spam filtering. It uses blacklist technology based on IP address, domain name and email address to block spam, and white list technology to release allowed mail. The advantage of this technology is that it does not occupy system resource...

AI Technical Summary

Problems solved by technology

[0020] Aiming at the deficiencies in the existing technology, that is, the flexibility and accuracy of the system are not enough, the new type of spam cannot be effectively identified, and the self-adaptive ability is insufficient, so a method that can effectively reduce the cost of mail filtering and improve the efficiency of the intrusion detection system is proposed. A method and system for filtering spam is one of the urgent problems to be solved in the field of network security technology

Images