Clustering and refinement of hierarchical concept from categorical databases based on rough sets.
Been-Chian ChienSu-Yu LiaoPublished in: FUZZ-IEEE (2004)
Keyphrases
- rough sets
- databases
- rough set model
- categorical data
- rough set theory
- decision rules
- granular computing
- fuzzy sets
- set theory
- kohonen self organizing maps
- lower and upper approximations
- rough sets theory
- clustering algorithm
- approximation spaces
- attribute reduction
- data analysis
- data mining
- rule induction
- dominance relation
- clustering method
- k means
- information entropy
- concept lattice
- upper approximation
- knowledge discovery
- inductive machine learning
- soft computing
- fuzzy logic
- graph theoretic
- continuous valued attributes
- cluster analysis
- numerical attributes
- set pair analysis
- data points
- decision making
- neural network
- rough fuzzy
- categorical attributes
- numerical data
- decision trees
- formal concept analysis
- decision table
- expert systems
- attribute values