The Impact of Disjunction on Query Answering Under Guarded-Based Existential Rules.
Pierre BourhisMichael MorakAndreas PierisPublished in: IJCAI (2013)
Keyphrases
- query answering
- data exchange
- integrity constraints
- incomplete information
- conjunctive queries
- data integration
- answering queries
- tuple generating dependencies
- data complexity
- dl lite
- query rewriting
- datalog programs
- inconsistent databases
- xml data exchange
- query containment
- association rules
- query answers
- expert systems
- fixpoint semantics
- ontology based data access
- database schema
- special case
- relational databases
- regular path queries
- databases