2546 search results - page 94 / 510 » Managing long-running queries |
166
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CIKM
2001
Springer
15 years 11 months ago
2001
Springer
Existing approaches for optimizing queries in data integration use decoupled strategies–attempting to optimize coverage and cost in two separate phases. Since sources tend to ha...
160
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SIGIR
2010
ACM
15 years 10 months ago
2010
ACM
Numerous studies have examined the ability of query performance prediction methods to estimate a query’s quality for system effectiveness measures (such as average precision). ...
161
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AIRS
2006
Springer
15 years 10 months ago
2006
Springer
We report on a study that was undertaken to better identify users' goals behind web search queries by using click through data. Based on user logs which contain over 80 millio...
205
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EDBTW
2006
Springer
15 years 10 months ago
2006
Springer
A data stream management system executes a large number of continuous queries in parallel. As stream characteristics and query workload change over time, the plan initially install...
167
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SEBD
1996
15 years 7 months ago
1996
Abstract. To select an optimal query evaluation strategy for a path query in an object-oriented database system one has to exploit the available index structures on the path. In a ...