Towards Practical Query Answering for Horn-SHIQ.
Thomas EiterMagdalena OrtizMantas SimkusTrung-Kien TranGuohui XiaoPublished in: Description Logics (2012)
Keyphrases
- query answering
- conjunctive query answering
- transitive roles
- description logics
- data complexity
- data exchange
- dl lite
- integrity constraints
- conjunctive queries
- answering queries
- data integration
- incomplete information
- query rewriting
- xml data exchange
- combined complexity
- tuple generating dependencies
- datalog programs
- inconsistent databases
- schema mappings
- double exponential
- np hard
- data sets
- ontology based data access
- case study