Efficient Datalog Rewriting for Query Answering in TGD Ontologies.
Zhe WangPeng XiaoKewen WangZhiqiang ZhuangHai WanPublished in: IEEE Trans. Knowl. Data Eng. (2023)
Keyphrases
- query answering
- conjunctive queries
- ontology based data access
- data exchange
- query rewriting
- dl lite
- datalog programs
- tuple generating dependencies
- data complexity
- integrity constraints
- incomplete information
- data integration
- answering queries
- ontology languages
- inconsistent databases
- consistency checking
- regular path queries
- schema mappings
- conjunctive query answering
- database
- complexity of query answering
- probabilistic databases
- decision procedures
- deductive databases
- functional dependencies
- semantic web
- data management
- knowledge representation
- computational complexity
- database systems