A Unified Framework for Flexible Query Answering over Heterogeneous Data Sources.
Roberto De VirgilioAntonio MaccioniRiccardo TorlonePublished in: FQAS (2015)
Keyphrases
- query answering
- heterogeneous data sources
- data integration
- data exchange
- data sources
- databases
- conjunctive queries
- data management
- data model
- data complexity
- heterogeneous data
- data warehouse
- answering queries
- global view
- semantic heterogeneity
- query rewriting
- query decomposition
- inconsistent databases
- schema mappings
- incomplete information
- query answers
- datalog programs
- ontology languages
- business intelligence
- query containment
- dl lite
- information systems
- machine learning
- decision support system
- information sources
- knowledge discovery
- integrity constraints
- query language
- regular path queries
- database