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ACMDIS
2010
ACM
15 years 4 months ago
Designing for the invisible: user-centered design of infrastructure awareness systems
Infrastructure awareness systems reveal invisible aspects of infrastructures to their existing or potential users. Designing such systems is challenging as it requires making visi...
Juan David Hincapié-Ramos, Aurélien ...
CVPR
2011
IEEE
15 years 3 months ago
Towards a practical lipreading system
A practical lipreading system can be considered either as subject dependent (SD) or subject-independent (SI). An SD system is user-specific, i.e., customized for some particular ...
Ziheng Zhou, Matti Pietik, Guoying Zhao
PR
2010
141views more  PR 2010»
15 years 1 months ago
On the vulnerability of face verification systems to hill-climbing attacks
In this paper, we use a hill-climbing attack algorithm based on Bayesian adaption to test the vulnerability of two face recognition systems to indirect attacks. The attacking tech...
Javier Galbally, Chris McCool, Julian Fiérr...
CHI
2008
ACM
16 years 7 months ago
A user study of policy creation in a flexible access-control system
Significant effort has been invested in developing expressive and flexible access-control languages and systems. However, little has been done to evaluate these systems in practic...
Lujo Bauer, Lorrie Faith Cranor, Robert W. Reeder,...
CHI
2007
ACM
16 years 7 months ago
A motion-based marking menu system
The rapid development of handheld devices is driving the development of new interaction styles. This paper examines one such technique: using hand motions to control a menu system...
Ian Oakley, Junseok Park