2546 search results - page 127 / 510 » Managing long-running queries |
181
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WAIM
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. Modern large distributed applications, such as telecommunication and banking services, need to respond instantly to a huge number of queries within a short period of time...
189
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CIKM
2005
Springer
16 years 2 days ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
201
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
135
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HICSS
1998
IEEE
15 years 10 months ago
1998
IEEE
Typically, users submit very simple search queries to digital document data collections. Often these queries can result in extremely broad answers or answers in which document rel...
145
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SIGIR
1998
ACM
15 years 10 months ago
1998
ACM
Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via adhoc feedback improves the retrieval e ectiveness of such ...