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JAPLL
2010
141views more  JAPLL 2010»
13 years 3 months ago
Algebraic tableau reasoning for the description logic SHOQ
Semantic web applications based on the web ontology language (OWL) often require the use of numbers in class descriptions for expressing cardinality restrictions on properties or ...
Jocelyne Faddoul, Volker Haarslev
DLOG
2006
13 years 6 months ago
Conjunctive Query Answering for Description Logics with Transitive Roles
An important reasoning task, in addition to the standard DL reasoning services, is conjunctive query answering. In this paper, we present algorithms for conjunctive query answerin...
Birte Glimm, Ian Horrocks, Ulrike Sattler
IJCAI
2003
13 years 6 months ago
Decidability of SHIQ with Complex Role Inclusion Axioms
Motivated by medical terminology applications, we investigate the decidability of the well known expressive DL, SHIQ, extended with role inclusion axioms (RIAs) of the form R ◦ ...
Ian Horrocks, Ulrike Sattler
LPAR
1999
Springer
13 years 9 months ago
Practical Reasoning for Expressive Description Logics
Abstract. Description Logics (DLs) are a family of knowledge representation formalisms mainly characterised by constructors to build complex concepts and roles from atomic ones. Ex...
Ian Horrocks, Ulrike Sattler, Stephan Tobies
JAIR
2007
146views more  JAIR 2007»
13 years 4 months ago
Reasoning with Very Expressive Fuzzy Description Logics
It is widely recognized today that the management of imprecision and vagueness will yield more intelligent and realistic knowledge-based applications. Description Logics (DLs) are...
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan, V...