Query processing in a three-level ontology-based data integration system.
João Carlos PinheiroVânia Maria Ponte VidalJosé Antônio Fernandes de MacêdoEveline R. SacramentoMarco A. CasanovaFábio PortoPublished in: iiWAS (2010)
Keyphrases
- data integration
- data management
- query processing
- data exchange
- data model
- data sources
- databases
- data sharing
- query decomposition
- query processing and optimization
- data warehouse
- heterogeneous data
- query answering
- data cleaning
- schema mappings
- data warehousing
- database management systems
- business intelligence
- biological databases
- database systems
- xml data
- data extraction
- query execution
- cost model
- heterogeneous data sources
- schema matching
- entity resolution
- database
- query plan
- biological data
- answering queries
- ontology alignment
- object oriented
- case study