1430 search results - page 180 / 286 » Query operations for moving objects database systems |
180
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SACMAT
2010
ACM
15 years 11 months ago
2010
ACM
Access to distributed databases containing tuples collected about mobile physical objects requires information about the objects’ trajectories. Existing access control models ca...
191
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DEXA
2009
Springer
16 years 29 days ago
2009
Springer
Dimension hierarchies represent a substantial part of the data warehouse model. Indeed they allow decision makers to examine data at different levels of detail with On-Line Analyt...
283
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
Nearest neighbor (NN) searches represent an important class of queries in geographic information systems (GIS). Most nearest neighbor algorithms rely on static distance informatio...
173
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BTW
2003
Springer
15 years 11 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
180
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KR
2004
Springer
15 years 11 months ago
2004
Springer
There are numerous applications such as air traffic management, cellular phone location tracking, and vehicle protection systems where there is a critical need to reason about mo...