3225 search results - page 269 / 645 » Query Optimization by Stored Queries |
256
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VLDB
2004
ACM
16 years 6 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
182
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VLDB
2005
ACM
15 years 11 months ago
2005
ACM
Devising a scheme for efficient and scalable querying of Resource Description Framework (RDF) data has been an active area of current research. However, most approaches define new...
167
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EDBT
2009
ACM
15 years 11 months ago
2009
ACM
We consider a near future scenario in which users of a Web 2.0 application, such as a social network, contribute to the application not only data, but also rules which automatical...
196
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DLOG
2008
15 years 8 months ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
176
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ADHOC
2005
15 years 6 months ago
2005
While sensor networks are going to be deployed in diverse application specific contexts, one unifying view is to treat them essentially as distributed databases. The simplest mech...