7576 search results - page 178 / 1516 » On Querying Ontologies and Databases |
154
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DGO
2003
15 years 7 months ago
2003
State-of-art image retrieval techniques have been developed to support high-level (semantics) querying and browsing of images. For certain user queries, it is also very important ...
193
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PODS
2008
ACM
16 years 6 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
152
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
The design and maintenance of ontologies is a complex social collaborative activity, and this is true especially for semantic-web ontologies. On the one hand, such activity calls ...
152
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ICDE
1994
IEEE
15 years 10 months ago
1994
IEEE
In this paper, we describe a query system that provides visual relevance feedback in querying large databases. Our goal is to support the process of data mining by representing as...
261
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Text documents often embed data that is structured in nature. By processing a text database with information extraction systems, we can define a variety of structured "relati...