Towards Universal Languages for Tractable Ontology Mediated Query Answering.
Heng ZhangYan ZhangJia-Huai YouZhiyong FengGuifei JiangPublished in: CoRR (2019)
Keyphrases
- query answering
- ontology based data access
- data exchange
- data complexity
- regular path queries
- complexity of query answering
- combined complexity
- ontology mappings
- conjunctive queries
- data integration
- incomplete information
- integrity constraints
- semantic web
- answering queries
- knowledge representation
- domain knowledge
- dl lite
- query rewriting
- inconsistent databases
- expressive power
- semantic annotation
- xml data exchange
- domain ontology
- query answers
- np complete
- unions of conjunctive queries
- knowledge base
- databases
- conceptual model
- data management
- np hard
- computational complexity
- query containment
- description logics
- data mining