Keyphrases
- heterogeneous data sources
- data sources
- query processor
- data integration
- query decomposition
- semantic integration
- multiple data sources
- semantic heterogeneity
- database
- global view
- query processing
- heterogeneous data
- data model
- databases
- information integration
- schema matching
- user queries
- database queries
- range queries
- multiple sources
- deep web
- data sets
- information sources
- data management
- data warehouse
- relational databases
- real world
- data exchange
- web mining
- web databases
- decision support system
- heterogeneous sources
- data analysis
- keywords
- web services
- decision making