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133
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CN
2007
15 years 1 months ago
2007
Distributed denial of service (DDoS) has long been an open security problem of the Internet. Most proposed solutions require the upgrade of routers across the Internet, which is e...
98
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COLCOM
2007
IEEE
15 years 8 months ago
2007
IEEE
— Centralized organization of current enterprise networks doesn’t represent an ideal solution in terms of information security and reliability. Denial of service, packet filter...
103
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GCA
2007
15 years 3 months ago
2007
On-Demand Computing fulfills the need of computing availability at limited hardware and software costs. Distributed systems of this kind typically store user files in a shared ...
172
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EMNETS
2007
15 years 5 months ago
2007
Imagers are an increasingly significant source of sensory observations about human activity and the urban environment. ImageScape is a software tool for processing, clustering, an...
129
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CCS
2010
ACM
15 years 2 months ago
2010
ACM
We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against th...