Applications and Extensions of PTIME Description Logics with Functional Constraints.
David TomanGrant E. WeddellPublished in: IJCAI (2009)
Keyphrases
- description logics
- dl lite
- knowledge representation formalisms
- knowledge base
- knowledge representation
- reasoning tasks
- knowledge representation and reasoning
- ontology languages
- data complexity
- computational properties
- exptime complete
- semantic web
- concept descriptions
- computing least common subsumers
- query answering
- expressive power
- model theoretic
- reasoning problems
- np complete
- reasoning services
- fuzzy description logics
- complexity of query answering
- owl ontologies
- default logic
- conjunctive queries
- integrity constraints
- relational databases
- number restrictions
- ontology based data access
- expert systems