6004 search results - page 249 / 1201 » Parallelizing query optimization |
ICS
2010
Tsinghua U.
14 years 3 months ago
2010
Tsinghua U.
When something unexpected happens in a large production system, administrators must first perform a search to isolate which components and component interactions are likely to be...
WWW
2003
ACM
14 years 11 months ago
2003
ACM
Search engine traffic is central to the success of many websites. By analyzing the queries-to-results graph generated by a search engine, our tool can recommend relevant queries f...
ADMA
2005
Springer
14 years 4 months ago
2005
Springer
Execution cost of batched data mining queries can be reduced by integrating their I/O steps. Due to memory limitations, not all data mining queries in a batch can be executed toget...
JC
2007
13 years 10 months ago
2007
We study the complexity of approximating the smallest eigenvalue of −∆ + q with Dirichlet boundary conditions on the d-dimensional unit cube. Here ∆ is the Laplacian, and th...
PVLDB
2008
13 years 10 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...