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155
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WWW
2009
ACM
16 years 7 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...
162
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
Phishing is a significant problem involving fraudulent email and web sites that trick unsuspecting users into revealing private information. In this paper, we present the design, ...
176
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
The Semantic Web consists of many RDF graphs nameable by URIs. This paper extends the syntax and semantics of RDF to cover such Named Graphs. This enables RDF statements that desc...
176
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PERCOM
2006
ACM
16 years 6 months ago
2006
ACM
In pervasive computing, devices or peers may implement or compose services using services from other devices or peers, and may use components from various sources. A composition t...
147
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CSE
2009
IEEE
16 years 1 months ago
2009
IEEE
Conventional cryptography uses encryption key, which are long bit strings and are very hard to memorize such a long random numbers. Also it can be easily attacked by using the brut...