1391 search results - page 218 / 279 » Completeness of Neighbourhood Logic |
188
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DLOG
2011
14 years 9 months ago
2011
We analyze the complexity of subsumption in probabilistic variants of the description logic EL. In the case where probabilities apply only to concepts, we map out the borderline be...
182
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IS
2012
14 years 1 months ago
2012
When transforming data one often wants certain information in the data source to be preserved, i.e., we identify parts of the source data and require these parts to be transformed...
214
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ICDT
2012
ACM
13 years 8 months ago
2012
ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
259
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
164
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WISE
2005
Springer
15 years 11 months ago
2005
Springer
Abstract. Answering a query over a group of RDF data pages is a trivial process. However, in the Semantic Web, there is a need for ontology technology. Consequently, OWL, a family ...