Ontology-mediated query answering: performance challenges and advances.
Wafaa El HusseiniCheikh Brahim El VaighFrançois GoasdouéHélène JaudoinPublished in: ISWC (Posters/Demos/Industry) (2021)
Keyphrases
- query answering
- ontology based data access
- data exchange
- integrity constraints
- conjunctive queries
- answering queries
- data integration
- incomplete information
- data complexity
- artificial intelligence
- knowledge base
- data integration systems
- knowledge representation
- inconsistent databases
- query rewriting
- domain ontology
- datalog programs
- dl lite
- semantic web
- domain knowledge
- query containment
- xml data exchange
- real world
- semantic annotation
- semantic information
- case study
- query answers
- query relaxation
- data management
- domain specific
- data warehouse
- data model
- metadata
- data sets
- database