1449 search results - page 265 / 290 » Modeling and Querying Moving Objects |
127
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GIS
2009
ACM
15 years 8 months ago
2009
ACM
Apart from visualization tasks, three-dimensional (3D) data management features are not or only hardly available in current spatial database systems and Geographic Information Sys...
157
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ICCV
2001
IEEE
16 years 6 months ago
2001
IEEE
We prove that the set of all Lambertian reflectance functions (the mapping from surface normals to intensities) obtained with arbitrary distant light sources lies close to a 9D lin...
228
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ICDE
2003
IEEE
16 years 5 months ago
2003
IEEE
In a visualization system, one of the key issues is to optimize performance and visual fidelity. This is especially critical for large virtual environments where the models do not...
236
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GIS
2005
ACM
16 years 5 months ago
2005
ACM
Topological predicates, as derived from the 9-intersection model, have been widely recognized in GIS, spatial database systems, and many other geo-related disciplines. They are ba...
125
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WWW
2006
ACM
16 years 4 months ago
2006
ACM
This paper is to investigate the group behavior patterns of search activities based on Web search history data, i.e., clickthrough data, to boost search performance. We propose a ...