A New Type of Metadata for Querying Data Integration Systems.
Sonia BergamaschiFrancesco GuerraMirko OrsiniClaudio SartoriPublished in: SEBD (2007)
Keyphrases
- data integration systems
- metadata
- query answering
- data sources
- query rewriting
- data integration
- schema mappings
- databases
- integrity constraints
- regular path queries
- relational databases
- query interface
- multimedia
- search tools
- database
- database management systems
- information extraction
- structured data
- query optimization
- expressive power
- data exchange
- query processing