3269 search results - page 261 / 654 » Query Optimization for XML |
133
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SIGECOM
2008
ACM
15 years 4 months ago
2008
ACM
We consider the problem of query rewrites in the context of keyword advertisement. Given a three-layer graph consisting of queries, query rewrites, and the corresponding ads that ...
141
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ADBIS
2000
Springer
15 years 8 months ago
2000
Springer
A number of algorithms of clustering spatial data for reducing the number of disk seeks required to process spatial queries have been developed. One of the algorithms is the scheme...
169
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ESWS
2011
Springer
14 years 8 months ago
2011
Springer
The emergence of the Semantic Web has led to the creation of large semantic knowledge bases, often in the form of RDF databases. Improving the performance of RDF databases necessit...
141
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ILP
2003
Springer
15 years 9 months ago
2003
Springer
Query optimization is used frequently in relational database management systems. Most existing techniques are based on reordering the relational operators, where the most selective...
158
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ADBIS
2007
Springer
15 years 8 months ago
2007
Springer
Query mapping to aggregation lattices is used in order to exploit sub-cube dependencies in multidimensional databases. It is employed in mobile OLAP dissemination systems, in order...