A Relational Model of Incomplete Data without NULLs.
Michael JohnsonStefano KasangianPublished in: CATS (2010)
Keyphrases
- incomplete data
- relational model
- relational algebra
- inclusion dependencies
- relational databases
- data model
- functional dependencies
- database technology
- missing data
- incomplete information
- null values
- missing values
- bayesian networks
- complex objects
- data exchange
- em algorithm
- data dependencies
- incomplete data sets
- relational calculus
- conceptual model
- integrity constraints
- data integration
- spatial databases
- relational models
- normal form
- query language
- xml documents
- databases
- database applications