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» The Complexity of the Extended GCD Problem
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ICDT
2009
ACM
149views Database» more  ICDT 2009»
14 years 9 months ago
Query languages for data exchange: beyond unions of conjunctive queries
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
Juan Reutter, Marcelo Arenas, Pablo Barceló
IJON
2007
74views more  IJON 2007»
13 years 9 months ago
Visual object concept discovery: Observations in congenitally blind children, and a computational approach
Over the course of the first few months of life, our brains accomplish a remarkable feat. They are able to interpret complex visual images so that instead of being just disconnec...
Jake V. Bouvrie, Pawan Sinha
SWAT
2004
Springer
120views Algorithms» more  SWAT 2004»
14 years 2 months ago
Matching Polyhedral Terrains Using Overlays of Envelopes
For a collection F of d-variate piecewise linear functions of overall combinatorial complexity n, the lower envelope E(F) of F is the pointwise minimum of these functions. The min...
Vladlen Koltun, Carola Wenk
HICSS
2003
IEEE
220views Biometrics» more  HICSS 2003»
14 years 2 months ago
Applications of Hidden Markov Models to Detecting Multi-Stage Network Attacks
This paper describes a novel approach using Hidden Markov Models (HMM) to detect complex Internet attacks. These attacks consist of several steps that may occur over an extended pe...
Dirk Ourston, Sara Matzner, William Stump, Bryan H...
ICDE
2003
IEEE
102views Database» more  ICDE 2003»
14 years 10 months ago
Schema Mediation in Peer Data Management Systems
Intuitively, data management and data integration tools should be well-suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two sign...
Alon Y. Halevy, Zachary G. Ives, Dan Suciu, Igor T...