765 search results - page 53 / 153 » Query Processing over Incomplete Autonomous Databases |
PVLDB
2010
14 years 8 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
This demo presents Hyperion, a prototype system that supports data sharing for a network of independent Peer Relational Database Management Systems (PDBMSs). The nodes of such a n...
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
The performance of web search engines may often deteriorate due to the diversity and noisy information contained within web pages. User click-through data can be used to introduce...
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
In recent years, several methods have been proposed for implementing interactive similarity queries on multimedia databases. Common to all these methods is the idea to exploit use...