Complexity of answering counting aggregate queries over DL-Lite.
Egor V. KostylevJuan L. ReutterPublished in: J. Web Semant. (2015)
Keyphrases
- aggregate queries
- dl lite
- query answering
- approximate answers
- query processing
- data cube
- description logics
- efficient computation
- answering queries
- computational complexity
- data complexity
- data exchange
- range aggregate queries
- query answers
- complexity of query answering
- conjunctive queries
- machine learning
- query rewriting
- database
- probabilistic databases
- special case
- integrity constraints
- expressive power
- data integration
- xml data
- multi dimensional
- database systems