Answering Counting Aggregate Queries over Ontologies of the DL-Lite Family.
Egor V. KostylevJuan L. ReutterPublished in: AAAI (2013)
Keyphrases
- dl lite
- aggregate queries
- query answering
- description logics
- data complexity
- approximate answers
- data exchange
- data cube
- conjunctive queries
- answering queries
- query answers
- query processing
- integrity constraints
- efficient computation
- query rewriting
- range aggregate queries
- data integration
- expressive power
- probabilistic databases
- reasoning tasks
- ontology based data access
- incomplete information
- first order logic
- special case
- computational complexity
- database
- query evaluation
- multi dimensional
- ontology languages
- knowledge base
- complexity of query answering
- data sources
- data management
- data structure
- databases