Spam filtering: Comparative analysis of filtering techniques

The spread of various types of malicious activities like unsolicited commercial e-mail (UCE) or unsolicited bulk e-mail (UBE) also called as SPAM has been the most imminent menace to the today's Internet world. These activities bring financial crisis to companies and annoying to most users because it clutters the users mailboxes and steal their valuable information for its financial gain. Now a day's these activities are the emerging threats for online users. Moreover many techniques have been used to detect and remove most of these messages automatically. But still now, no single method exists to resolve all of these problems. This paper provides the details about various spam filtering techniques. In addition, it compares several techniques including its advantages, disadvantages, accuracy, etc.