On (In)Tractability of OBDA with OWL 2 QL.
Stanislav KikotRoman KontchakovMichael ZakharyaschevPublished in: Description Logics (2011)
Keyphrases
- semantic web
- query language
- ontology languages
- knowledge representation
- constraint satisfaction
- np complete
- semantic web technologies
- open world
- databases
- owl ontologies
- computational complexity
- knowledge base
- description logics
- knowledge management
- object oriented
- integrity constraints
- incomplete information
- data complexity
- conceptual modeling
- e learning
- constraint problems
- owl dl
- constraint language
- web ontology language
- artificial intelligence