摘要
给出了单向S-粗集的副集η-嵌入和函数双向S-粗集的副集η-嵌入的概念,分析了两者的特性,讨论了两者间的关系.
The concepts of η-embeddings of assistant sets of one-direction and two-direction function S-rough sets are given, their characteristics analyzed, their relation discussed.
出处
《天中学刊》
2006年第2期6-8,64,共4页
Journal of Tianzhong
关键词
函数单向S-粗集
函数双向S-粗集
副集
η-嵌入
one-direction function S-rough sets
two-direction function S-rough sets
assistant sets
η-embedding