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SIGMOD
1998
ACM
129views Database» more  SIGMOD 1998»
15 years 6 months ago
Incremental Distance Join Algorithms for Spatial Databases
Two new spatial join operations, distance join and distance semijoin, are introduced where the join output is ordered by the distance betweenthe spatialattribute values ofthe join...
Gísli R. Hjaltason, Hanan Samet
ECSCW
1993
15 years 3 months ago
A Spatial Model of Interaction in Large Virtual Environments
: We present a spatial model of group interaction in virtual environments. The model aims to provide flexible and natural support for managing conversations among large groups gath...
Steve Benford, Lennart E. Fahlén
ECAI
2000
Springer
15 years 5 months ago
Qualitative Spatial Reasoning about Line Segments
Abstract. Representing and reasoning about orientation information is an important aspect of qualitative spatial reasoning. We present a novel approach for dealing with intrinsic o...
Reinhard Moratz, Jochen Renz, Diedrich Wolter
GI
2009
Springer
14 years 11 months ago
Coarse graining of an individual-based plant model
: The evolution and structuring of plant communities is governed by local plant-to-plant interaction. It has been shown that the individual variability of the organisms and the spa...
Johannes Hoefener, Lars Rudolf, Uta Berger, Thilo ...
ICCV
2011
IEEE
14 years 2 months ago
Spatiotemporal Oriented Energies for Spacetime Stereo
This paper presents a novel approach to recovering temporally coherent estimates of 3D structure of a dynamic scene from a sequence of binocular stereo images. The approach is bas...
Mikhail Sizintsev, Richard Wildes