Research on the approach of dynamically maintenance of approximations in rough set theory while attribute values coarsening and refining.
Hongmei ChenTianrui LiWeibin LiuWeili ZouPublished in: GrC (2009)
Keyphrases
- attribute values
- rough set theory
- rough sets
- decision table
- lower and upper approximations
- upper and lower approximations
- attribute reduction
- decision rules
- information entropy
- tool for data mining
- multi attribute
- fuzzy set theory
- categorical data
- numerical attributes
- granular computing
- concept lattice
- data analysis
- rule induction
- knowledge discovery
- approximation spaces
- rule sets
- rough sets theory
- rough approximations
- formal concept analysis
- attribute set
- continuous attributes
- genetic algorithm
- expert systems
- decision trees