2217 search results - page 80 / 444 » Rank-aware Query Optimization |
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ADBIS
2005
Springer
15 years 8 months ago
2005
Springer
Abstract. The performance of an information retrieval system is usually measured in terms of two different criteria, precision and recall. This way, the optimization of any of its...
131
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WWW
2007
ACM
16 years 3 months ago
2007
ACM
Search queries applied to extract relevant information from the World Wide Web over a period of time may be denoted as continuous search queries. The improvement of continuous sea...
133
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CIKM
2009
Springer
15 years 9 months ago
2009
Springer
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
146
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DPD
2002
15 years 2 months ago
2002
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
196
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ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
We present a system that optimizes sequences of related client requests by combining small requests into larger ones, thus reducing per-request overhead. The system predicts upcom...