737 search results - page 49 / 148 » Optimization approach for data allocation in multidisk datab... |
DASFAA
1999
IEEE
14 years 1 months ago
1999
IEEE
The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach h...
DEXA
2004
Springer
14 years 2 months ago
2004
Springer
Much work has been done on characterizing the workload of a database system. Previous studies focused on providing different types of statistical summaries, and modeling the run-ti...
SIGMOD
2002
ACM
14 years 9 months ago
2002
ACM
Scaling up to the enormous and growing Internet population with unpredictable usage patterns, Ecommerce applications face severe challenges in cost and manageability, especially f...
ICDE
2009
IEEE
14 years 4 months ago
2009
IEEE
— Information extraction (IE) systems are trained to extract specific relations from text databases. Real-world applications often require that the output of multiple IE systems...
BTW
2009
Springer
14 years 1 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...