Optimized Query Rewriting for OWL 2 QL.
Alexandros ChortarasDespoina TrivelaGiorgos B. StamouPublished in: CADE (2011)
Keyphrases
- query rewriting
- query answering
- query optimization
- conjunctive queries
- ontology languages
- query language
- xml queries
- data integration
- data complexity
- query execution
- spatial databases
- tree patterns
- xpath queries
- query processing
- data exchange
- heterogeneous data
- query result
- databases
- complex queries
- np complete
- knowledge base
- search engine