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MM
2005
ACM
114views Multimedia» more  MM 2005»
15 years 3 months ago
IMAGINATION: a robust image-based CAPTCHA generation system
We propose IMAGINATION (IMAge Generation for INternet AuthenticaTION), a system for the generation of attack-resistant, user-friendly, image-based CAPTCHAs. In our system, we prod...
Ritendra Datta, Jia Li, James Ze Wang
CTRSA
2005
Springer
121views Cryptology» more  CTRSA 2005»
15 years 3 months ago
Time-Selective Convertible Undeniable Signatures
Undeniable signatures were introduced in 1989 by Chaum and van Antwerpen to limit the self-authenticating property of digital signatures. An extended concept – the convertible un...
Fabien Laguillaumie, Damien Vergnaud
GECCO
2005
Springer
135views Optimization» more  GECCO 2005»
15 years 3 months ago
Dynamic optimization of migration topology in internet-based distributed genetic algorithms
Distributed Genetic Algorithms (DGAs) designed for the Internet have to take its high communication cost into consideration. For island model GAs, the migration topology has a maj...
Johan Berntsson, Maolin Tang
UC
2005
Springer
15 years 3 months ago
Quantum Searching Amidst Uncertainty
Consider a database most of whose entries are marked but the precise fraction of marked entries is not known. What is known is that the fraction of marked entries is 1 − , where ...
Lov K. Grover
DATE
2003
IEEE
99views Hardware» more  DATE 2003»
15 years 3 months ago
Load Distribution with the Proximity Congestion Awareness in a Network on Chip
In Networks on Chip, NoC, very low cost and high performance switches will be of critical importance. For a regular two-dimensional NoC we propose a very simple, memoryless switch...
Erland Nilsson, Mikael Millberg, Johnny Öberg...