Knowledge Base Schemes for Flexible Query-Answering Expert Systems.
Hiroshi TsujiShunsuke AkifujiHirohide EndohPublished in: FQAS (1996)
Keyphrases
- query answering
- expert systems
- knowledge base
- data exchange
- knowledge based systems
- data complexity
- integrity constraints
- knowledge acquisition
- data integration
- answering queries
- dl lite
- incomplete information
- conjunctive queries
- data integration systems
- knowledge representation
- description logics
- query relaxation
- regular path queries
- inconsistent databases
- open world
- databases
- ontology languages
- query answers
- database systems
- ontology based data access