Pawlak's Information Systems in Terms of Galois Connections and Functional Dependencies.
Jouni JärvinenPublished in: Fundam. Informaticae (2007)
Keyphrases
- functional dependencies
- information systems
- normal form
- integrity constraints
- relational databases
- semantic data models
- database design
- inclusion dependencies
- data dependencies
- relational model
- conflict free
- database schemes
- databases
- xml documents
- rough sets
- approximate functional dependencies
- user defined
- universal relation
- set of functional dependencies
- horn theories
- database schema
- formal concept analysis
- entity relationship
- object oriented
- data model
- database systems
- logical implication
- relational database theory
- database
- rough set theory