Ontological Query Answering via Rewriting.
Georg GottlobGiorgio OrsiAndreas PierisPublished in: ADBIS (2011)
Keyphrases
- query answering
- conjunctive queries
- query rewriting
- magic sets
- data exchange
- datalog programs
- regular path queries
- data complexity
- integrity constraints
- data integration
- answering queries
- incomplete information
- data integration systems
- knowledge representation
- query containment
- schema mappings
- inconsistent databases
- ontology based data access
- probabilistic databases
- dl lite
- decision procedures
- xml data exchange
- case study