Keyphrases
- description logics
- reasoning tasks
- reasoning problems
- expressive description logics
- reasoning systems
- computational properties
- knowledge representation and reasoning
- knowledge base
- reasoning mechanism
- knowledge representation
- knowledge representation systems
- reasoning services
- computing least common subsumers
- knowledge representation formalisms
- number restrictions
- semantic web ontologies
- ontology reasoning
- owl dl
- mathcal shiq
- knowledge representation languages
- semantic web
- computational complexity
- logical implication
- web ontology language
- concept descriptions
- snomed ct
- biomedical ontologies
- automated reasoning
- logic programming
- exptime complete
- np complete
- formal ontologies
- expert systems
- ontology languages
- dl lite
- probabilistic reasoning
- np hard