Rewriting Minimisations for Efficient Ontology-Based Query Answering.
Tassos VenetisGiorgos StoilosVasilis VassalosPublished in: ICTAI (2016)
Keyphrases
- query answering
- conjunctive queries
- query rewriting
- data exchange
- integrity constraints
- data complexity
- answering queries
- datalog programs
- regular path queries
- incomplete information
- magic sets
- data integration
- data integration systems
- inconsistent databases
- dl lite
- description logics
- query relaxation
- database
- ontology based data access
- query answers
- ontology languages
- expressive power
- data model