112 search results - page 18 / 23 » Conjunctive Query Answering for the Description Logic SHIQ |
EDBT
2012
ACM
12 years 11 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
AUSAI
2008
Springer
14 years 11 months ago
2008
Springer
This paper introduces the controlled natural language PENG Light together with a language processor that is based on a bidirectional grammar. The language processor has the followi...
155
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PODS
2009
ACM
15 years 10 months ago
2009
ACM
The paper investigates the question of whether a partially closed database has complete information to answer a query. In practice an enterprise often maintains master data Dm, a ...
75
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ICLP
2005
Springer
15 years 2 months ago
2005
Springer
The Semantic Web is a rapidly growing research area aiming at the exchange of semantic information over the World Wide Web. The Semantic Web is built on top of RDF, an XML-based ex...
ENTCS
2007
14 years 9 months ago
2007
Description Logics (DLs) are a family of logic based knowledge representation formalisms. Although they have a range of applications, they are perhaps best known as the basis for ...