3151 search results - page 161 / 631 » Using query term order for result summarisation |
148
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CIKM
2011
Springer
14 years 4 months ago
2011
Springer
A growing number of applications are built on top of search engines and issue complex structured queries. This paper contributes a customisable ranking-based processing of such qu...
138
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VLDB
2004
ACM
15 years 10 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
134
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VLDB
2005
ACM
15 years 10 months ago
2005
ACM
In many systems, sensors are used to acquire information from external environments such as temperature, pressure and locations. Due to continuous changes in these values, and lim...
118
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ICDT
1997
ACM
15 years 8 months ago
1997
ACM
We consider spatial databases and queries definable using first-order logic and real polynomial inequalities. We are interested in topological queries: queries whose result only ...
138
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SIGMOD
1993
ACM
15 years 8 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...