2845 search results - page 227 / 569 » Constraints over Ontologies |
171
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DLOG
2007
15 years 8 months ago
2007
We present cq-programs, which enhance nonmonotonic description logics (dl-) programs by conjunctive queries (CQ) and union of conjunctive queries (UCQ) over Description Logics kno...
175
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DEXAW
2008
IEEE
15 years 8 months ago
2008
IEEE
With the increasing development of real applications using Semantic Web Technologies, it is necessary to provide scalable and efficient ontology querying and reasoning systems. In ...
230
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DILS
2008
Springer
15 years 8 months ago
2008
Springer
With over 80 file formats to represent various chemical attributes, the conversion between one format and another is invariably lossy due to informal specifications. In contrast, t...
176
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ICWS
2004
IEEE
15 years 7 months ago
2004
IEEE
The potential of a large scale growth of private and semiprivate registries is creating the need for an infrastructure which can support discovery and publication over a group of ...
162
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DGO
2003
15 years 7 months ago
2003
To query XML data over the Web, query engines need to be able to resolve semantic differences between heterogeneous attributes that are conceptually similar. This demo presents a ...