Keyphrases
- description logics
- dl lite
- ontology languages
- reasoning services
- knowledge base
- semantic web
- knowledge representation
- dl programs
- concept descriptions
- owl dl
- ontology based data access
- ontology reasoning
- owl ontologies
- reasoning mechanism
- formal ontologies
- semantic mapping
- semantic web ontologies
- reasoning tasks
- query answering
- biomedical ontologies
- knowledge representation and reasoning
- ontology mappings
- transitive roles
- medical terminology
- reasoning problems
- computational properties
- description logic programs
- computing least common subsumers
- knowledge representation formalisms
- expressive power
- reasoning systems
- fuzzy description logics
- domain ontology
- databases
- domain knowledge
- data complexity
- heterogeneous data
- expert systems
- model theoretic