Keyphrases
- fuzzy sets
- rough sets
- upper approximation
- aggregation operators
- information systems
- fuzzy set theory
- fuzzy logic
- rough fuzzy
- membership functions
- approximation operators
- rough set theory
- interval valued
- fuzzy measures
- fuzzy rough sets
- fuzzy relations
- t norm
- fuzzy rules
- boolean algebra
- membership degree
- set theory
- real time
- computational intelligence
- machine learning
- data mining