5166 search results - page 321 / 1034 » Web Query Optimizer |
204
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CIDR
2007
15 years 8 months ago
2007
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
212
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IJCAI
2007
15 years 8 months ago
2007
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...
227
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ACML
2009
Springer
16 years 1 months ago
2009
Springer
With more and more commercial activities moving onto the Internet, people tend to purchase what they need through Internet or conduct some online research before the actual transac...
212
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CIKM
2010
Springer
15 years 4 months ago
2010
Springer
Search nodes are single-purpose components of large Web search engines and their efficient implementation is critical to sustain thousands of queries per second and guarantee indi...
281
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ICDE
2007
IEEE
16 years 8 months ago
2007
IEEE
Algorithms that exploit sort orders are widely used to implement joins, grouping, duplicate elimination and other set operations. Query optimizers traditionally deal with sort ord...