Efficient Query Answering for OWL 2.
Héctor Pérez-UrbinaIan HorrocksBoris MotikPublished in: ISWC (2009)
Keyphrases
- query answering
- data exchange
- integrity constraints
- open world
- incomplete information
- data complexity
- answering queries
- ontology languages
- data integration
- conjunctive queries
- data integration systems
- schema mappings
- multi agent
- datalog programs
- query rewriting
- semantic web
- knowledge representation
- query relaxation
- knowledge base
- xml data exchange