IS-粗集
improper singular rough sets
Pawlak粗集代数
Pawlak rough sets algebras
Serial粗集代数
Serial rough sets algebras
变精度粗集
variable precision rough set
变精度粗集模型
Variable precision rough sets
variable precision rough sets model
variable precision rough set model
变精度单向变异S-粗集
variable precision one direction variation S-rough
变精度双向IS-粗集
variable precision two direction improper singular
变异函数Sp-粗集
Sp-rough Set of Variation Function
变异函数S-粗集
variation function S-rough sets
变异模糊粗集
variation fuzzy rough set
不同岩石粗集料
course aggregate of different rock variety