3269 search results - page 334 / 654 » Query Optimization for XML |
142
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WWW
2003
ACM
16 years 5 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...
135
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ADMA
2005
Springer
15 years 10 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...
139
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JC
2007
15 years 4 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...
149
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PVLDB
2008
15 years 4 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...
274
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ICDE
2008
IEEE
16 years 6 months ago
2008
IEEE
This paper introduces U-relations, a succinct and purely relational representation system for uncertain databases. U-relations support attribute-level uncertainty using vertical pa...