Keyphrases
- approximation operators
- rough set approximations
- rough sets
- fuzzy rough sets
- set theoretic
- equivalence relation
- fuzzy sets
- information systems
- approximation spaces
- attribute reduction
- rough fuzzy
- fuzzy logic
- rough set theory
- membership functions
- rough approximations
- decision rules
- fuzzy relations
- upper approximation
- genetic algorithm
- fuzzy set theory
- data mining
- fuzzy entropy
- group decision making
- fuzzy partitions
- multi attribute