313 search results - page 16 / 63 » Semantic Query Optimization for Methods in Object-Oriented D... |
158
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SIGMOD
2005
ACM
15 years 11 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
103
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SAC
2003
ACM
15 years 4 months ago
2003
ACM
Based on the limitations raised by existing approaches in the context of the Semantic Web, we propose a formalism, Web Sources Global Ontology (WebSOGO), a data meta-model for the...
103
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CASES
2004
ACM
15 years 3 months ago
2004
ACM
The tremendous growth of system memories has increased the capacities and capabilities of memory-resident embedded databases, yet current embedded databases need to be tuned in or...
120
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SIGMOD
2011
ACM
14 years 2 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
VLDB
1999
ACM
15 years 3 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...