Aggregate Query Answering under Uncertain Schema Mappings.
Avigdor GalMaria Vanina MartinezGerardo I. SimariV. S. SubrahmanianPublished in: ICDE (2009)
Keyphrases
- query answering
- schema mappings
- data exchange
- data integration
- database schema
- data integration systems
- xml data exchange
- conjunctive queries
- data complexity
- answering queries
- incomplete information
- consistency checking
- data management
- query rewriting
- inconsistent databases
- xml schema
- decision making
- complexity bounds
- tuple generating dependencies
- database
- end users
- dl lite
- query answers
- databases
- data sets