3629 search results - page 532 / 726 » A More Efficient Use of Delta-CRLs |
184
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GIS
2002
ACM
15 years 6 months ago
2002
ACM
A very important class of queries in GIS applications is the class of K-Nearest Neighbor queries. Most of the current studies on the K-Nearest Neighbor queries utilize spatial ind...
170
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DKE
1998
15 years 6 months ago
1998
Disk I/O is a major bottleneck for query processing in database applications. This bottleneck is especially a problem for temporal databases because of their large size. Reduction...
178
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SIAMCOMP
2002
15 years 6 months ago
2002
We consider the problem of maintaining aggregates and statistics over data streams, with respect to the last N data elements seen so far. We refer to this model as the sliding wind...
216
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MT
2007
15 years 6 months ago
2007
This paper describes the framework of the StatCan Daily Translation Extraction System (SDTES), a computer system that maps and compares webbased translation texts of Statistics Can...
195
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PVLDB
2008
15 years 6 months ago
2008
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...