Bloom filter is a probabilistic and space efficient data structure designed to check the membership of an element in a set. The trade-off to use Bloom filter may have configurable risk of false positives. The percentages of a false positive can be made low if the hash bit map is sufficiently massive. Spam is an unsolicited or irrelevant message sent on the internet to an outsized range of users...

S pam, the term used to describe unsolicited e-mail received from an unknown sender without expressed consent of the recipient [1], has become a major problem for communications through the Internet. Since the delivery of the fi rst spam message in 1978 [2], the volume of spam has grown tremendously. In January 2005, the percentage of all e-mails, worldwide, identifi ed as spam was estimated at...

This paper introduced the four tracks that WIM-Lab Fudan University had taken part in at TREC 2007. For spam track, a multi-centre model was proposed considering the characteristics of spam mails in contrast of traditional 2-class classification methodology, and the incremental clustering and closeness-based classification methods were applied this year. For enterprise track, our research was m...

Spam Revisited ABSTRACT Even though unsolicited commercial e-mail or Spam continues to be a major problem, very little academic research has focused on it. Notable exceptions include The purpose of this paper is to provide a comprehensive overview of the Spam problem and a critical analysis of the solutions. We begin with a definition of Spam. This is followed by an analysis of the pernicious i...

This paper presents a unique spam mail filtering technique based on a deep analysis of statistics on URL’s included in various e-mails gathered from a laboratory in a university for about six months. Since the proposed mail filtering technique searches only URL’s in mail, the overhead introduced by searching all mail contents or black list utilized by many other mail filtering algorithms is sig...

Abstract Spam electronic mails (emails) refer to harmful and unwanted commercial emails sent corporate bodies or individuals cause harm. Even though such are often used for advertising services products, they sometimes contain links malware phishing hosting websites through which private information can be stolen. This study shows how the adaptive intelligent learning approach, based on visual ...

Due to the side effects of the increasing Internet population and the proliferation of new cyberspace culture on the current Internet culture, this research seeks to construct a multi-step security system as a counter measure. This multi-step security system utilizes the existing legacy security solution firewall, intrusion detection system, and intrusion prevention system and virus wall to pro...

1 ME Computer Student, 2 Professor 1,2 Computer Department, Pimpri Chinchwad College of Engineering, Nigdi, Pune, Maharashtra, INDIA _________________________________________________________________________ Abstract: Email spam or junk e-mail is one of the major problems of the today's usage of Internet, which carries financial damage to organizations and annoying individual users. Among the ap...

As email becomes a popular means for communication over the Internet, the problem of receiving unsolicited and undesired emails, called spam or junk mails, severely arises. To filter spam from legitimate emails, automatic classification approaches using text mining techniques are proposed. This kind of approaches, however, often suffers from low recall rate due to the natures of spam, skewed cl...