6746 search results - page 268 / 1350 » Multimodal Database Query |
228
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
183
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SDB
1995
15 years 7 months ago
1995
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
111
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EDBT
2002
ACM
16 years 4 months ago
2002
ACM
For a spatial database management system, it is an important goal to minimize the I/O-cost of queries and other operations. Several page-replacement strategies have been proposed a...
126
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BTW
2007
Springer
15 years 10 months ago
2007
Springer
: Database-internal statistics are very important for cost-based query optimizers. Only if an optimizer has accurate statistical information about data, it provides excellent execu...
165
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DASFAA
2006
IEEE
15 years 10 months ago
2006
IEEE
Database outsourcing is an important emerging trend which involves data owners delegating their data management needs to an external service provider. Since a service provider is a...