238 search results - page 18 / 48 » The Data Cyclotron query processing scheme |
191
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ICDE
2002
IEEE
15 years 11 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
102
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DATESO
2009
14 years 7 months ago
2009
Multi-dimensional data structures have been widely applied in many data management fields. Spatial data indexing is their natural application, however there are many applications i...
TMC
2010
14 years 8 months ago
2010
—This paper proposes a cache consistency scheme based on a previously proposed architecture for caching database data in MANETs. The original scheme for data caching stores the q...
DEXA
2008
Springer
14 years 11 months ago
2008
Springer
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...
WWW
2004
ACM
15 years 10 months ago
2004
ACM
Maximizing only the relevance between queries and documents will not satisfy users if they want the top search results to present a wide coverage of topics by a few representative...