9683 search results - page 582 / 1937 » Predicting query performance |
212
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CIKM
2009
Springer
15 years 5 months ago
2009
Springer
Standard approaches to evaluating and comparing information retrieval systems compute simple averages of performance statistics across individual topics to measure the overall sys...
188
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MASCOTS
2008
15 years 8 months ago
2008
Commercial servers, such as database or application servers, often attempt to improve performance via multithreading. Improper multi-threading architectures can incur contention, ...
304
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
We introduce a convoy query that retrieves all convoys from historical trajectories, each of which consists of a set of objects that travelled closely during a certain time period....
284
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ICDE
2000
IEEE
16 years 8 months ago
2000
IEEE
In this paper, we study power conservation techniques for multi-attribute queries on wireless data broadcast channels. Indexing data on broadcast channels can improve client filte...
267
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SIGMOD
2005
ACM
16 years 7 months ago
2005
ACM
Data analysts need to understand the quality of data in the warehouse. This is often done by issuing many Group By queries on the sets of columns of interest. Since the volume of ...