On axiomatic characterizations of three pairs of covering based approximation operators.

Yan-Lan Zhang Jinjin Li Wei-Zhi Wu

Published in: Inf. Sci. (2010)

Keyphrases

approximation operators
rough set approximations
rough sets
upper approximation
fuzzy rough sets
set theoretic
approximation spaces
rough set theory
decision theory
rough approximations
knowledge discovery
decision table
attribute reduction