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ICPR
2010
IEEE
14 years 9 days ago
Efficient Encoding of N-D Combinatorial Pyramids
Combinatorial maps define a general framework which allows to encode any subdivision of an n-D orientable quasi-manifold with or without boundaries. Combinatorial pyramids are def...
Sébastien Fourey, Luc Brun
JSYML
2002
84views more  JSYML 2002»
13 years 10 months ago
Maximal Contiguous Degrees
A computably enumerable (c.e.) degree is a maximal contiguous degree if it is contiguous and no c.e. degree strictly above it is contiguous. We show that there are infinitely many ...
Peter Cholak, Rodney G. Downey, Stephen Walk
LICS
2010
IEEE
13 years 8 months ago
On the Scope of the Universal-Algebraic Approach to Constraint Satisfaction
The universal-algebraic approach has proved a powerful tool in the study of the computational complexity of constraint satisfaction problems (CSPs). This approach has previously b...
Manuel Bodirsky, Martin Hils, Barnaby Martin
IPSN
2004
Springer
14 years 3 months ago
Modeling of sensor nets in Ptolemy II
This paper describes a modeling and simulation framework called VisualSense for wireless sensor networks that builds on and leverages Ptolemy II. This framework supports actor-ori...
Philip Baldwin, Sanjeev Kohli, Edward A. Lee, Xiao...
ICPR
2002
IEEE
14 years 11 months ago
Person-on-Person Violence Detection in Video Data
We address the problem of detecting human violence in video, such as fist fighting, kicking, hitting with objects, etc. To detect violence we rely on motion trajectory information...
Ankur Datta, Mubarak Shah, Niels da Vitoria Lobo