157 search results - page 10 / 32 » A Conjunctive Query Language for Description Logic Aboxes |
103
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FOCS
1998
IEEE
15 years 2 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
88
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DATESO
2008
14 years 11 months ago
2008
Presently, there is no specialized language for complex integrity constraints description in XML documents. In this paper we present a language that combines first-order logic toge...
73
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ICFCA
2007
Springer
15 years 4 months ago
2007
Springer
We model a Digital Library as a formal context in which objects are documents and attributes are terms describing documents contents. A formal concept is very close to the notion o...
93
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PVLDB
2010
14 years 8 months ago
2010
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
106
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DLOG
2003
14 years 11 months ago
2003
Agent systems that search the Semantic Web are seen as killer applications for description logic (DL) inference engines. The guiding examples for the Semantic Web involve informat...