3969 search results - page 449 / 794 » Query Processing Using Ontologies |
166
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ICIP
2003
IEEE
16 years 8 months ago
2003
IEEE
In this paper, we evaluate and investigate two main types of relevance feedback algorithms; the Euclidean and the correlation?based approaches. In the first case, we examine heuri...
138
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
Most RDF query languages allow for graph structure search through a conjunction of triples which is typically processed using join operations. A key factor in optimizing joins is ...
164
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ICASSP
2009
IEEE
16 years 1 months ago
2009
IEEE
This paper considers a method for learning a distance metric in a fingerprinting system which identifies a query content by measuring the distance between the fingerprint of th...
214
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SISAP
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract—We propose a strategy to perform query processing on P2P similarity search systems based on peers and superpeers. We show that by approximating global but resumed inform...
165
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DEXAW
1999
IEEE
15 years 10 months ago
1999
IEEE
This paper describes an algebra for use with parallel object databases, and in particular ODMG compliant databases with OQL. Although there have been many proposals for parallel r...