3969 search results - page 369 / 794 » Query Processing Using Ontologies |
286
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Publication
This paper presents a framework for building and continuously maintaining spatio-temporal histograms (ST-Histograms, for short). ST-Histograms are used for selectivity estimation o...
119
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W2GIS
2005
Springer
15 years 10 months ago
2005
Springer
The history management of vehicles is important in telematics applications. To process queries for history data, trajectories, we generally use trajectory-preserving index schemes ...
129
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VLDB
2004
ACM
15 years 10 months ago
2004
ACM
We introduce an auditing framework for determining whether a database system is adhering to its data disclosure policies. Users formulate audit expressions to specify the (sensiti...
145
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SIGIR
2000
ACM
15 years 9 months ago
2000
ACM
The paper introduces a query translation model that re ects the structure of the cross-language information retrieval task. The model is based on a structured bilingual dictionary...
138
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ACL
2003
15 years 6 months ago
2003
Standard IR systems can process queries such as “web NOT internet”, enabling users who are interested in arachnids to avoid documents about computing. The documents retrieved ...