765 search results - page 33 / 153 » Query Processing over Incomplete Autonomous Databases |
106
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WISE
2000
Springer
15 years 2 months ago
2000
Springer
The mediator/wrapper approach is used to integrate data from different databases and other data sources by introducing a middleware virtual database that provides high level abstr...
104
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EUROPAR
2006
Springer
15 years 1 months ago
2006
Springer
OGSA-DQP is a Distributed Query Processing system for the Grid. It uses the OGSA-DAI framework for querying individual databases and adds on top of it an infrastructure to perform ...
150
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Lately the advances in centralized database management systems show a trend towards supporting rank-aware query operators, like top-k, that enable users to retrieve only the most ...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...
164
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GIS
2007
ACM
15 years 11 months ago
2007
ACM
Continuous spatial queries posted within an environment of moving objects produce as their results a time-varying set of objects. In the most ambitious case both queries and data ...