Keyphrases
- dl lite
- description logics
- possibility theory
- query answering
- data complexity
- query rewriting
- conjunctive queries
- first order logic
- computational complexity
- expressive power
- reasoning tasks
- knowledge base
- conditional independence
- computational properties
- logic programming
- incomplete information
- optimal solution
- semantic web
- nonmonotonic reasoning
- probability theory
- knowledge representation
- ontology languages