A SPARQL Query Rewriting Approach on Heterogeneous Ontologies with Mapping Reliability.
Takahisa FujinoNaoki FukutaPublished in: IIAI-AAI (2012)
Keyphrases
- query rewriting
- heterogeneous data
- dl lite
- ontology based data access
- data integration
- query optimization
- query answering
- conjunctive queries
- semantic web
- databases
- spatial databases
- data management
- xml queries
- data sources
- xpath queries
- query execution
- data model
- data representation
- complex queries
- metadata
- information integration
- query processing
- tree patterns
- knowledge representation
- knowledge base
- database
- query evaluation
- data exchange
- data structure
- database systems
- query result
- rdf graphs