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ADMA
2009
Springer

Semi Supervised Image Spam Hunter: A Regularized Discriminant EM Approach

9 years 10 months ago
Semi Supervised Image Spam Hunter: A Regularized Discriminant EM Approach
Image spam is a new trend in the family of email spams. The new image spams employ a variety of image processing technologies to create random noises. In this paper, we propose a semi-supervised approach, regularized discriminant EM algorithm (RDEM), to detect image spam emails, which leverages small amount of labeled data and large amount of unlabeled data for identifying spams and training a classification model simultaneously. Compared with fully supervised learning algorithms, the semi-supervised learning algorithm is more suitedin adversary classification problems, because the spammers are actively protecting their work by constantly making changes to circumvent the spam detection. It makes the cost too high for fully supervised learning to frequently collect sufficient labeled data for training.
Yan Gao, Ming Yang, Alok N. Choudhary
Added 25 May 2010
Updated 25 May 2010
Type Conference
Year 2009
Where ADMA
Authors Yan Gao, Ming Yang, Alok N. Choudhary
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