Keyphrases
- description logics
- knowledge base
- reasoning tasks
- knowledge representation
- knowledge representation and reasoning
- reasoning problems
- reasoning systems
- knowledge representation systems
- special case
- semantic web
- computational properties
- concept descriptions
- owl dl
- dl lite
- knowledge representation languages
- reasoning services
- ontology languages
- databases
- reasoning mechanism
- highly expressive
- number restrictions
- computing least common subsumers