On Querying Incomplete Information in Databases under Bag Semantics.
Marco ConsolePaolo GuagliardoLeonid LibkinPublished in: IJCAI (2017)
Keyphrases
- incomplete information
- databases
- null values
- open world
- extended logic programs
- partial information
- uncertain information
- database
- missing information
- formal semantics
- relational databases
- autonomous agents
- relational model
- query answering
- first order logic
- database systems
- data retrieval
- relational data model
- action theories
- provenance information
- human behavior
- closed world
- query evaluation
- dynamic environments
- relational database theory