486 search results - page 53 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
ERSHOV
2006
Springer
15 years 5 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
130
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WWW
2011
ACM
14 years 8 months ago
2011
ACM
The ability to aggregate huge volumes of queries over a large population of users allows search engines to build precise models for a variety of query-assistance features such as ...
118
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EDBT
2008
ACM
16 years 1 months ago
2008
ACM
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
197
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ICDE
2008
IEEE
16 years 2 months ago
2008
IEEE
Abstract-- Many popular Web sites suffer occasional uservisible problems such as slow responses, blank pages or error messages being displayed, items not being added to shopping ca...
102
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VLDB
2005
ACM
15 years 7 months ago
2005
ACM
This paper addresses the efficient processing of top-k queries in wide-area distributed data repositories where the index lists for the attribute values (or text terms) of a query...