Keyphrases
- inconsistent databases
- approximate query answering
- query optimization
- aggregate queries
- query answering
- multi dimensional
- consistent query answering
- selectivity estimation
- xml data
- data cube
- approximate answers
- datalog programs
- data warehouse
- query answers
- query processing
- integrity constraints
- cost model
- database systems
- databases
- database
- range queries
- functional dependencies
- incomplete information
- data exchange
- conjunctive queries
- efficient computation