41 search results - page 4 / 9 » A Description Logic with Transitive and Inverse Roles and Ro... |
AAAI
2008
13 years 9 months ago
2008
Many semantic web applications require support for mappings between roles (or properties) defined in multiple independently developed ontology modules. Distributed Description Log...
AAAI
2006
13 years 8 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 ...
LPAR
2007
Springer
14 years 1 months ago
2007
Springer
We study the data complexity of instance checking and conjunctive query answering in the EL family of description logics, with a particular emphasis on the boundary of tractability...
CADE
2008
Springer
14 years 7 months ago
2008
Springer
Abstract. Conjunctive query answering plays a prominent role in applications of description logics (DLs) that involve instance data, but its exact complexity was a long-standing op...
IJCAI
2007
13 years 8 months ago
2007
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...