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136
Voted
TSP
2010
14 years 11 months ago
2010
A quaternion widely linear (QWL) model for quaternion valued mean-squared-error (MSE) estimation is proposed. The augmented statistics are first introduced into the field of quater...
117
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WWW
2009
ACM
16 years 5 months ago
2009
ACM
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
212
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HYPERTEXT
2009
ACM
16 years 2 months ago
2009
ACM
Collaborative annotation tools are in widespread use. The metadata from these systems can be mined to induce semantic relationships among Web objects (sites, pages, tags, concepts...
146
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IEEEARES
2008
IEEE
15 years 11 months ago
2008
IEEE
—A bot is a piece of software that is usually installed on an infected machine without the user’s knowledge. A bot is controlled remotely by the attacker under a Command and Co...
143
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ACSAC
2007
IEEE
15 years 11 months ago
2007
IEEE
We propose a taxonomy of botnet structures, based on their utility to the botmaster. We propose key metrics to measure their utility for various activities (e.g., spam, ddos). Usi...