194 search results - page 21 / 39 » Query Answering in Description Logics: The Knots Approach |
ER
2010
Springer
13 years 5 months ago
2010
Springer
Traditional information search in which queries are posed against a known and rigid schema over a structured database is shifting towards a Web scenario in which exposed schemas ar...
PVLDB
2010
13 years 5 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...
SEMWEB
2001
Springer
13 years 11 months ago
2001
Springer
Metadata are widely used in order to fully exploit information resources available on corporate intranets or the Internet. The Resource Description Framework (RDF) aims at facilit...
ICTAI
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—In distributed environments, access control decisions depend on statements of multiple agents rather than only one central trusted party. However, existing policy langua...
ECAI
2000
Springer
13 years 11 months ago
2000
Springer
Abstract. Defeasible reasoning is a direction in nonmonotonic reasoning that is based on the use of rules that may be defeated by other rules. It is a simple, but often more effic...