7576 search results - page 207 / 1516 » On Querying Ontologies and Databases |
298
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ICDT
1995
ACM
15 years 10 months ago
1995
ACM
Abstract. Extension of the relational database model to represent complex data has been a focus of much research in recent years. At the same time, an alternative extension of the ...
165
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ESWS
2008
Springer
15 years 8 months ago
2008
Springer
The goal of this paper is to give an overview of the basics of the theory of RDF databases. We provide a formal definition of RDF that includes the features that distinguish this m...
170
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BMCBI
2006
15 years 6 months ago
2006
Background: The goal of information integration in systems biology is to combine information from a number of databases and data sets, which are obtained from both high and low th...
171
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DEXAW
1999
IEEE
15 years 11 months ago
1999
IEEE
This work addresses a problem of optimal query processing in heterogeneous and distributed multidatabase systems. The objective is to nd a method for opimization of global query p...
173
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SEMWEB
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. This paper presents a decidable fragment for combining ontologies and rules in order-sorted logic programming. We describe ordersorted logic programming with sort, predic...