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EUROCRYPT
2003
Springer
15 years 6 months ago
CAPTCHA: Using Hard AI Problems for Security
We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
Luis von Ahn, Manuel Blum, Nicholas J. Hopper, Joh...
FOCS
2002
IEEE
15 years 5 months ago
The Partition Technique for Overlays of Envelopes
We obtain a near-tight bound of O(n3+ε ), for any ε > 0, on the complexity of the overlay of the minimization diagrams of two collections of surfaces in four dimensions. This...
Vladlen Koltun, Micha Sharir
ECCV
1992
Springer
15 years 4 months ago
Shape from Texture for Smooth Curved Surfaces
Projective distortion of surface texture observed in a perspective image can provide direct information about the shape of the underlying surface. Previous theories have generally...
Jonas Gårding
116
Voted
ACMICEC
2007
ACM
245views ECommerce» more  ACMICEC 2007»
15 years 4 months ago
Keyword generation for search engine advertising using semantic similarity between terms
An important problem in search engine advertising is keyword1 generation. In the past, advertisers have preferred to bid for keywords that tend to have high search volumes and hen...
Vibhanshu Abhishek, Kartik Hosanagar
134
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CASES
2007
ACM
15 years 4 months ago
Fragment cache management for dynamic binary translators in embedded systems with scratchpad
Dynamic binary translation (DBT) has been used to achieve numerous goals (e.g., better performance) for general-purpose computers. Recently, DBT has also attracted attention for e...
José Baiocchi, Bruce R. Childers, Jack W. D...
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