1430 search results - page 87 / 286 » Query operations for moving objects database systems |
120
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MDM
2007
Springer
15 years 7 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
106
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VLDB
2000
ACM
15 years 5 months ago
2000
ACM
Modern database applications show a growing demand for efficient and dynamic management of intervals, particularly for temporal and spatial data or for constraint handling. Common...
104
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EDBT
2009
ACM
15 years 8 months ago
2009
ACM
This work addresses the problem of processing continuous nearest neighbor (NN ) queries for moving objects trajectories when the exact position of a given object at a particular t...
131
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VLDB
1995
ACM
15 years 5 months ago
1995
ACM
Efficient processing of aggregation queries is essential for decision support applications. This paper describes a class of query transformations, called eager aggregation and lat...
132
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BMCBI
2010
15 years 1 months ago
2010
Background: Finding the subgraphs of a graph database that are isomorphic to a given query graph has practical applications in several fields, from cheminformatics to image unders...