521 search results - page 31 / 105 » Answering Queries by Semantic Caches |
AAAI
2006
14 years 11 months ago
2006
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
101
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JELIA
2010
Springer
14 years 8 months ago
2010
Springer
Abstract. Nonmonotonic causal logic became a basis for the semantics of several expressive action languages. Norman McCain and Paolo Ferraris showed how to embed propositional caus...
RSFDGRC
2005
Springer
15 years 3 months ago
2005
Springer
The paper concerns failing queries in incomplete Distributed Autonomous Information Systems (DAIS) based on attributes which are hierarchical and which semantics at different site...
ICDT
2012
ACM
13 years 8 days ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...
107
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ICCS
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...