: A Graph-Based Approach Towards Efficient SPARQL Query Answering.
Xi WangQianzhen ZhangDeke GuoXiang ZhaoJianye YangPublished in: DASFAA (2) (2020)
Keyphrases
- query answering
- data exchange
- data integration
- data complexity
- incomplete information
- answering queries
- conjunctive queries
- query rewriting
- integrity constraints
- data model
- inconsistent databases
- query language
- linked data
- query evaluation
- query optimization
- np hard
- special case
- database
- query answers
- data integration systems