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USS
2008
15 years 9 months ago
Measurement and Classification of Humans and Bots in Internet Chat
The abuse of chat services by automated programs, known as chat bots, poses a serious threat to Internet users. Chat bots target popular chat networks to distribute spam and malwa...
Steven Gianvecchio, Mengjun Xie, Zhengyu Wu, Haini...
WSC
2007
15 years 9 months ago
Stability analysis of the supply chain by using neural networks and genetic algorithms
Effectively managing a supply chain requires visibility to detect unexpected variations in the dynamics of the supply chain environment at an early stage. This paper proposes a me...
Alfonso Sarmiento, Luis Rabelo, Ramamoorthy Lakkoj...
USS
2008
15 years 9 months ago
An Improved Clock-skew Measurement Technique for Revealing Hidden Services
The Tor anonymisation network allows services, such as web servers, to be operated under a pseudonym. In previous work Murdoch described a novel attack to reveal such hidden servi...
Sebastian Zander, Steven J. Murdoch
USS
2008
15 years 9 months ago
Practical Symmetric Key Cryptography on Modern Graphics Hardware
Graphics processors are continuing their trend of vastly outperforming CPUs while becoming more general purpose. The latest generation of graphics processors have introduced the a...
Owen Harrison, John Waldron
WSC
2007
15 years 9 months ago
Approximations and control variates for pricing portfolio credit derivatives
Portfolio credit derivatives that depend on default correlation are increasingly widespread in the credit market. Valuing such products often entails Monte Carlo simulation. Howev...
Zhiyong Chen, Paul Glasserman