Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/4255

A learning approach to spam detection based on social networks

Authors Lam, Ho-Yu
Issue Date 2007
Summary The massive increase of spam is posing a very serious threat to email which has become an important means of communication. Not only does it annoy users, but it also consumes a lot of the Internet’s bandwidth. This thesis studies the problem of spam and provides a survey to the existing and proposed preventive and technological anti-spam measures. Most spam filters in existence are based on content analysis. While these anti-spam tools have proven useful, they do not protect bandwidths from being wasted and spammers are learning to bypass them via clever manipulation of the spam content. A very different approach to spam detection is based on the behavior of email senders. In this thesis, we propose a learning approach to spam sender detection based on features extracted from social networks constructed from email exchange logs. Legitimacy scores are assigned to senders based on their likelihood of being a legitimate sender. Three potential spam mitigation schemes are also explored.
Note Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2007
Subjects
Language English
Format Thesis
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