Semantic Query Answering with Time-Series Graphs.
Leo FerresMichel DumontierNatalia Villanueva-RosalesPublished in: EDOCW (2007)
Keyphrases
- query answering
- data exchange
- conjunctive queries
- integrity constraints
- data complexity
- data integration
- answering queries
- incomplete information
- query containment
- data integration systems
- dl lite
- semantic information
- xml data exchange
- schema mappings
- inconsistent databases
- query rewriting
- datalog programs
- query answers
- graph model
- query relaxation
- heterogeneous data sources
- semantic web
- natural language
- database
- semantic annotation
- data management
- open world
- data sets