Keyphrases
- data integration
- data exchange
- data model
- data sources
- data transformation
- data warehouse
- data management
- databases
- query answering
- heterogeneous data sources
- data warehousing
- biological databases
- heterogeneous data
- data cleaning
- data extraction
- database schema
- biological data
- business intelligence
- real world
- object oriented
- query decomposition
- xml data sources
- water resources management
- database
- xml queries
- database systems
- metadata
- query rewriting
- schema matching
- information systems
- data integration systems
- scientific data management