Spam Recognition using Linear Regression and Radial Basis Function Neural Network

Tich Phuoc Tran, Min Li, Dat Tran, Dam Duong Ton

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Spamming is the abuse of electronic messaging systems to send unsolicited bulk messages. It is becoming a serious problem for organizations and individual email users due to the growing popularity and low cost of electronic mails. Unlike other web threats such as hacking and Internet worms which directly damage our information assets, spam could harm the computer networks in an indirect way ranging from network problems like increased server load, decreased network performance and viruses to personnel issues like lost employee time, phishing scams, and offensive content. Though a large amount of research has been conducted in this area to prevent spamming from undermining the usability of email, currently existing filtering methods' performance still suffers from extensive computation (with large volume of emails received) and unreliable predictive capability (due to highly dynamic nature of emails). In this chapter, we discuss the challenging problems of Spam Recognition and then propose an anti-spam filtering framework; in which appropriate dimension reduction schemes and powerful classification models are employed. In particular, Principal Component Analysis transforms data to a lower dimensional space which is subsequently used to train an Artificial Neural Network based classifier. A cost-sensitive empirical analysis with a publicly available email corpus, namely Ling-Spam, suggests that our spam recognition framework outperforms other state¬of-the-art learning methods in terms of spam detection capability. In the case of extremely high misclassification cost, while other methods' performance deteriorates significantly as the cost factor increases, our model still remains stable accuracy with low computation cost.
Original languageEnglish
Title of host publicationPattern Recognition
EditorsPeng-Yeng Yin
Place of PublicationIndia
Number of pages20
ISBN (Print)9789533070148
Publication statusPublished - 2009


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