799 search results - page 25 / 160 » Query Brokers for Distributed and Flexible Query Evaluation |
113
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SIGMOD
2004
ACM
15 years 12 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
179
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ICDE
1999
IEEE
16 years 1 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...
MTA
2007
14 years 11 months ago
2007
Complex multimedia queries, aiming to retrieve from large databases those objects that best match the query specification, are usually processed by splitting them into a set of m ...
108
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IPM
2007
14 years 11 months ago
2007
Users of search engines express their needs as queries, typically consisting of a small number of terms. The resulting search engine query logs are valuable resources that can be ...
102
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SEMWEB
2010
Springer
14 years 9 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...