An Experimental Prototype for Flexible Query-Answering Mechanisms - A Metainterpretation Approach.
Henning ChristiansenTroels AndreasenPublished in: FQAS (1996)
Keyphrases
- query answering
- data exchange
- data complexity
- conjunctive queries
- answering queries
- data integration
- integrity constraints
- incomplete information
- datalog programs
- data integration systems
- query rewriting
- transitive roles
- database
- schema mappings
- dl lite
- databases
- tuple generating dependencies
- magic sets
- decision support
- special case
- data mining
- ontology languages
- query answers
- data sets