XML with incomplete information: models, properties, and query answering.
Pablo BarcelóLeonid LibkinAntonella PoggiCristina SirangeloPublished in: PODS (2009)
Keyphrases
- incomplete information
- query answering
- data exchange
- conjunctive queries
- data complexity
- data integration
- answering queries
- missing information
- open world
- autonomous agents
- integrity constraints
- query relaxation
- relational model
- data mining
- query rewriting
- decision making
- first order logic
- xml data
- possibility theory
- xml documents