7576 search results - page 357 / 1516 » On Querying Ontologies and Databases |
278
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ICDE
2004
IEEE
16 years 8 months ago
2004
IEEE
Peer-to-peer systems are mainly used for object sharing although they can provide the infrastructure for many other applications. In this paper, we extend the idea of object shari...
266
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SIGMOD
2006
ACM
16 years 7 months ago
2006
ACM
Adaptive query processing has been the subject of a great deal of recent work, particularly in emerging data management environments such as data integration and data streams. We ...
201
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VLDB
2002
ACM
15 years 6 months ago
2002
ACM
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
185
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SEMWEB
2010
Springer
15 years 4 months ago
2010
Springer
We describe a mapping language for converting data contained in spreadsheets into the Web Ontology Language (OWL). The developed language, called M2 , overcomes shortcomings with e...
218
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ESWS
2010
Springer
15 years 5 months ago
2010
Springer
Abstract. RDF will often be the metadata model of choice in the Semantic Sensor Web. However, RDF can only represent thematic metadata and needs to be extended if we want to model ...