3456 search results - page 504 / 692 » Semantics in Spatial Databases |
115
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SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
In massively collaborative projects such as scientific or community databases, users often need to agree or disagree on the content of individual data items. On the other hand, tr...
212
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GIS
2003
ACM
16 years 3 months ago
2003
ACM
With the proliferation of mobile computing, the ability to index efficiently the movements of mobile objects becomes important. Objects are typically seen as moving in two-dimensi...
250
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VLDB
2005
ACM
16 years 2 months ago
2005
ACM
Estimating the selectivity of multidimensional range queries over real valued attributes has significant applications in data exploration and database query optimization. In this p...
198
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ECOI
2011
14 years 9 months ago
2011
The potential for physical flora collections to support scientific research is being enhanced by rapid development of digital databases that represent characteristics of the physic...
122
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DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
Recent research shows that ontology as background knowledge can improve document clustering quality with its concept hierarchy knowledge. Previous studies take term semantic simila...