Reformulation-based query answering in RDF: alternatives and performance.
Damian BursztynFrançois GoasdouéIoana ManolescuPublished in: Proc. VLDB Endow. (2015)
Keyphrases
- query answering
- data integration systems
- data exchange
- data integration
- incomplete information
- semantic web
- data complexity
- ontology languages
- ontology mappings
- answering queries
- integrity constraints
- conjunctive queries
- decision makers
- metadata
- dl lite
- linked data
- open world
- data model
- query rewriting
- relational data
- inconsistent databases
- data sources
- query answers
- ontology based data access
- datalog programs
- databases
- rdf data
- xml schema
- graph databases
- schema mappings
- query language
- knowledge base
- data sets
- xml data exchange
- first order logic
- data management
- query relaxation
- expert systems