Keyphrases
- description logics
- dl lite
- ontology languages
- snomed ct
- reasoning services
- knowledge base
- semantic web
- ontology reasoning
- knowledge representation
- dl programs
- owl dl
- formal ontologies
- concept descriptions
- semantic web ontologies
- semantic mapping
- owl ontologies
- reasoning mechanism
- biomedical ontologies
- reasoning tasks
- ontology mappings
- web ontology language
- daml oil
- reasoning systems
- computational properties
- medical terminology
- description logic programs
- reasoning problems
- model theoretic
- data complexity
- semantic modeling
- computing least common subsumers
- conjunctive queries
- data sources
- domain ontology
- knowledge representation languages
- expressive power
- databases
- query rewriting