Lattice structures of fixed points of the lower approximations of two types of covering-based rough sets
Qingyin LiWilliam ZhuPublished in: CoRR (2012)
Keyphrases
- rough sets
- fixed point
- upper and lower approximations
- rough set theory
- rough approximations
- fuzzy sets
- concept lattice
- granular computing
- decision rules
- lower and upper approximations
- free energy
- rough sets theory
- fuzzy rough sets
- fuzzy logic
- sufficient conditions
- attribute reduction
- dynamical systems
- approximate value iteration
- closure operator
- dominance relation
- upper approximation
- image segmentation
- formal concept analysis
- decision table
- data mining
- pattern recognition
- continuous valued attributes
- feature selection
- approximation operators
- belief propagation
- data analysis
- classification rules
- control system