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SP
2010
IEEE
192views Security Privacy» more  SP 2010»
15 years 10 months ago
How Good Are Humans at Solving CAPTCHAs? A Large Scale Evaluation
—Captchas are designed to be easy for humans but hard for machines. However, most recent research has focused only on making them hard for machines. In this paper, we present wha...
Elie Bursztein, Steven Bethard, Celine Fabry, John...
ATAL
2006
Springer
15 years 10 months ago
Distributed navigation in an unknown physical environment
We address the problem of navigating from an initial node to a goal node by a group of agents in an unknown physical environment. In such environments mobile agents must physicall...
Arnon Gilboa, Amnon Meisels, Ariel Felner
ATAL
2006
Springer
15 years 10 months ago
A context-aware approach for service selection using ontologies
Selecting the right parties to interact with is a fundamental problem in open and dynamic environments. The problem is exemplified when the number of interacting parties is high a...
Murat Sensoy, Pinar Yolum
CCS
2006
ACM
15 years 10 months ago
Finding the original point set hidden among chaff
In biometric identification, a fingerprint is typically represented as a set of minutiae which are 2D points. A method [4] to protect the fingerprint template hides the minutiae b...
Ee-Chien Chang, Ren Shen, Francis Weijian Teo
FPGA
2004
ACM
163views FPGA» more  FPGA 2004»
15 years 10 months ago
Time and area efficient pattern matching on FPGAs
Pattern matching for network security and intrusion detection demands exceptionally high performance. Much work has been done in this field, and yet there is still significant roo...
Zachary K. Baker, Viktor K. Prasanna