2514 search results - page 227 / 503 » On the Computation of Approximations of Database Queries |
204
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SSDBM
2008
IEEE
16 years 1 months ago
2008
IEEE
Abstract. In recent years, there is an increasing need to monitor k nearest neighbor (k-NN) in a road network. There are existing solutions on either monitoring k-NN objects from a...
216
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CVDB
2004
ACM
16 years 2 days ago
2004
ACM
Nearest Neighbor Search on Multimedia Indexing Structures Multimedia databases get larger and larger in our days, and this trend is expected to continue in the future. There are v...
183
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SAC
2008
ACM
15 years 6 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
211
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BDA
2007
15 years 8 months ago
2007
Sharing huge, massively distributed databases in P2P systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer suffi...
192
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SIGMOD
2003
ACM
16 years 6 months ago
2003
ACM
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off b...