Expanded Response to New Spam Content Filtering
Yuanzhe Wang · Computers & Security · 2010
With information increasing violently,spam problem becomes more and more serious.How to effectively filter spam becomes a hot issue.This paper introduces several kinds of common techniques of spam filtering.Particularly,it analyzes several kinds of new tricks used by spam makers that try to bypass the content-based inspection,such as mixing simplified and complex fonts,splitting Chinese characters,adding special characters into words.In response to these new tricks,this paper proposes an improved strategy for Chinese word segmentation.By combination of content-based keywords inspection it proposes feature expansion based mechanism of content inspection and filtering.The prospect of the idea of feature expansion's application to network content security and healthy filtering is given finally.