Flexible Query Answering with the powerset-AI Operator and Star-Based Ranking.
Lena WiesePublished in: FQAS (2017)
Keyphrases
- query answering
- data exchange
- answering queries
- incomplete information
- conjunctive queries
- integrity constraints
- data complexity
- artificial intelligence
- data integration
- inconsistent databases
- data integration systems
- query rewriting
- expressive power
- machine learning
- datalog programs
- query containment
- functional dependencies
- expert systems
- data sets
- database systems
- ontology languages
- query answers
- decision making
- xml data exchange