32 search results - page 4 / 7 » Learning-Based Top-N Selection Query Evaluation over Relatio... |
104
Voted
ICDE
2010
IEEE
15 years 4 months ago
2010
IEEE
— When a database system is extended with the skyline operator, it is important to determine the most efficient way to execute a skyline query across tables with join operations...
100
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PPDP
2010
Springer
14 years 10 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
128
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ER
1999
Springer
15 years 3 months ago
1999
Springer
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
SIGMOD
2001
ACM
15 years 11 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
108
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BTW
2009
Springer
15 years 4 months ago
2009
Springer
: Cost-based optimizers in relational databases make use of data statistics to estimate intermediate result cardinalities. Those cardinalities are needed to estimate access plan co...