2674 search results - page 393 / 535 » Data Models and Query Languages for Spatial Databases |
172
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SMA
2009
ACM
16 years 28 days ago
2009
ACM
We present practical algorithms for accelerating geometric queries on models made of NURBS surfaces using programmable Graphics Processing Units (GPUs). We provide a generalized f...
172
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
Relevance feedback has been demonstrated to be an effective strategy for improving retrieval accuracy. The existing relevance feedback algorithms based on language models and vect...
265
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SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
The family of threshold algorithm (i.e., TA) has been widely studied for efficiently computing top-k queries. TA uses a sort-merge framework that assumes data lists are pre-sorted...
194
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EDBT
2010
ACM
15 years 8 months ago
2010
ACM
Users who are unfamiliar with database query languages can search XML data sets using keyword queries. Current approaches for supporting such queries are either for textcentric XM...
190
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DOLAP
1998
ACM
15 years 10 months ago
1998
ACM
Though designing a data warehouse requires techniques completely different from those adopted for operational systems, no significant effort has been made so far to develop a comp...