Collaborative Spam Filtering Using E-Mail Networks
Kong, J.S.
Rezaei, B.A.
Sarshar, N.
Roychowdhury, V.P.
Boykin, P.O.
Dept. of Electr. Eng., California Univ., Los Angeles, CA;
This paper appears in: Computer
Publication Date: Aug. 2006
Volume: 39,
Issue: 8
On page(s): 67-73
ISSN: 0018-9162
INSPEC Accession Number: 9064237
Digital Object Identifier: 10.1109/MC.2006.257
Current Version Published: 2006-08-14
Abstract
Widespread Internet use has led to the emergence of several kinds of large-scale social networks in cyberspace, most notably e-mail networks. Unfortunately, the tremendous convenience that e-mail affords comes at a high price: Although the network's underlying connectivity is hidden, making it almost impossible to build a comprehensive directory of every individual's contact lists, e-mail addresses themselves can be easily obtained from publicly available documents. Spammers have exploited this vulnerability to inundate users with unsolicited bulk e-mail. A distributed spam-filtering system that leverages e-mail networks' topological properties is more efficient and scalable than client-server-based solutions. Large-scale simulations of a prototype system reveal that this approach achieves a near-perfect spam-detection rate while minimizing bandwidth cost
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