摘要
利用函数单向S-粗集对偶的结构,给出函数迁移的信度特征,函数集Q′的下近似信度特征,函数集Q′的上近似信度特征,利用这些结果,给出函数单向S-粗集对偶的信度特征,提出函数单向S-粗集对偶的随机结构与随机定理。函数单向S-粗集对偶的结构是函数单向S-粗集对偶的随机结构的特例,函数单向S-粗集对偶的随机结构是函数单向S-粗集对偶结构的一般形式。
By using dual function one direction S-rough sets, the authors give reliability characteristics of function transfer, lower approximation of Q'function sets and upper approximation of Q'function sets; Based on these results, the authors give reliability characteristics of dual function one direction S-rough sets and propose random structure and random theorem of dual function one direction S-rough sets. Dual function one direction S- rough sets is a special case of random structure of dual function one direction S-rough sets, and random structure of dual function one direction S-rough sets is the general form of dual function one direction S-rough sets.
出处
《龙岩学院学报》
2009年第2期15-18,共4页
Journal of Longyan University
关键词
函数迁移
信度
信度函数
随机结构
function transfer
reliability
reliability function
random structure