Data exchange: query answering for incomplete data sources.
Foto N. AfratiChen LiVassia PavlakiPublished in: Infoscale (2008)
Keyphrases
- data exchange
- query answering
- data sources
- data integration
- data integration systems
- schema mappings
- data model
- conjunctive queries
- data complexity
- answering queries
- data management
- data warehouse
- databases
- query rewriting
- data warehousing
- consistency checking
- query answers
- closed world assumption
- heterogeneous data
- heterogeneous data sources
- database schema
- inconsistent databases
- xml schema
- data transformation
- dl lite
- decision making
- data sets
- xml queries
- domain ontology
- xml documents
- tuple generating dependencies