Chaoyong Qin
College of Mathematics and Information Sciences of Guangxi Univer- sity, Naning 530004, P. R. China and Glorious Sun School of Business Administration, Donghua Universty, Shanghai 200051, P. R.China
[ 1 ] - ROUGH SET OVER DUAL-UNIVERSES IN FUZZY APPROXIMATION SPACE
To tackle the problem with inexact, uncertainty and vague knowl- edge, constructive method is utilized to formulate lower and upper approx- imation sets. Rough set model over dual-universes in fuzzy approximation space is constructed. In this paper, we introduce the concept of rough set over dual-universes in fuzzy approximation space by means of cut set. Then, we discuss properties of rough se...
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