Keyphrases
- data sources
- data integration systems
- data integration
- schema mappings
- data model
- semantic mappings
- databases
- information sources
- information integration
- data warehouse
- structured data
- integrating heterogeneous
- heterogeneous data
- query answering
- multiple data sources
- data exchange
- multiple sources
- schema matching
- semantic heterogeneity
- ontology mappings
- deep web
- distributed data sources
- data sets
- domain ontology
- data repositories
- data mining
- real world
- neural network