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The Research Of Chinese Anti-spam System Based On Individuation

Posted on:2009-09-29Degree:MasterType:Thesis
Country:ChinaCandidate:T T ZhangFull Text:PDF
GTID:2178360245954055Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
With the rapid development of Internet, because e-mail is easy to use, fast, cheap and reliable features, it has been quickly accepted by the vast number of Internet users. It has become the most popular service of Internet application. E-mail has brought us convenience, it has also produced a new problem, which is the emergence of a large number of spam. Not only it has brought great difficulties to internet users to send and receive e-mail, thus wasting a lot of time and money, but also it has caused the pollution of the entire network space, and a tremendous negative impact. The study and design of highly efficient spam filtering system is of great practical significance.How can we get the useful ones from a large number of e-mail ? This is the so-called the question of spam filtering. Because of the growing proliferation of Internet spam, the e-mail system's security problems have attracted widespread attention in the professional fields. Various e-mail filtering software has introduced, but most of them require manually inputting the filter conditions, and only use a single basic technology of filtering spam. This paper proposes a plan based on combining the Vector Space algorithm and the Bayesian algorithm method for Chinese spam solution , and also dissertates spam filtering system based on the Hybrid algorithm.The system has been implemented on the Windows XP platform with VB language. The system works in the e-mail client, it analyses based on the e-mail content. Compared to the only use the single filter of spam classification system, it not only can effectively and rapidly classify e-mail, but also improve the accuracy of the classification, and reduce the false judgement rate. This approach has strong adaptability to automatically construct filtering rules, and it can automatically adjust filter following the situation changes, so this is an intelligent mail filtering method.In this paper, firstly introduces the actuality of spam e-mail and the e-mail working principle, at the same time the basic principles of the Bayesian algorithm and Vector Space algorithm, the basic definition of spam filter, and the basic types of filtration methods are also given. Secondly, it emphasizes the researching of e-mail filtering based on the Hybrid algorithm. Thirdly, it introduces the relevant technology involved in the realization of Chinese spam filters. Finally, with the coalescent of Hybrid algorithm based on the Chinese e-mail filters it experiments and analyses the results. It also summarises the advantages of the algorithm based on the combination of e-mail filtering system, and represents the prospect in future work.
Keywords/Search Tags:Spam, VSM Algorithm, Bayesian Algorithm, Hybrid Algorithm, E-mail Filtering
PDF Full Text Request
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