3456 search results - page 418 / 692 » Semantics in Spatial Databases |
271
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GIS
2009
ACM
16 years 7 months ago
2009
ACM
A common problem in moving object databases (MOD) is the reconstruction of a trajectory from a trajectory sample (i.e., a finite sequence of time-space points). A typical solution...
257
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
When integrating geo-spatial datasets, a join algorithm is used for finding sets of corresponding objects (i.e., objects that represent the same real-world entity). Algorithms for...
312
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VLDB
2007
ACM
16 years 6 months ago
2007
ACM
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
181
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GIS
2009
ACM
16 years 1 months ago
2009
ACM
Volunteered geographic information such as that available in blogs, wikis, social networking sites, and community contributed photo collections is enabling new applications. This ...
175
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VR
2003
IEEE
15 years 12 months ago
2003
IEEE
This paper presents a real-time database modeling complex networks of intersecting roads and walkways in urban virtual environments. The database represents information about the ...