Keyphrases
- data integration
- data exchange
- data model
- data transformation
- databases
- data sources
- data management
- data cleaning
- query answering
- data warehouse
- biological databases
- heterogeneous data sources
- xml data sources
- data extraction
- schema mappings
- xml documents
- business intelligence
- data warehousing
- database schema
- query decomposition
- scientific data management
- schema matching
- data integration systems
- heterogeneous data
- query language
- database systems
- xml queries
- xml data
- information extraction
- information technology
- data analysis
- metadata