节点文献
θ-粗模糊集
The θ-rough fuzzy sets
【摘要】 提出粗模糊集的θ-包含等价类的概念,给出变精度粗模糊集的一种新定义形式θ-粗模糊集,讨论了θ-粗模糊集的结构及其性质,证明了θ-粗模糊集的截集和模糊集截集的θ-粗集是等价的.
【Abstract】 The conception of θ-inclusion equivalence class of rough fuzzy sets is proposed,a new definition form of variable precision rough fuzzy sets-θ rough fuzzy sets is given,and the structure and property of θ-rough fuzzy sets are discussed.Lastly,the equivalence relation between the cut of θ-rough fuzzy sets and the θ-rough sets of the cut of fuzzy sets is proved.
【关键词】 变精度粗模糊集;
θ-包含等价类;
θ-粗模糊集;
近似精度;
【Key words】 variable precision rough fuzzy sets; θ-inclusion equivalence class; θ-rough fuzzy sets; approximation precision;
【Key words】 variable precision rough fuzzy sets; θ-inclusion equivalence class; θ-rough fuzzy sets; approximation precision;
【基金】 福建省自然科学基金资助项目(JA04268);福建省教育厅基金资助项目(JA05326)
- 【文献出处】 山东大学学报(理学版) ,Journal of Shandong University(Natural Science) , 编辑部邮箱 ,2006年02期
- 【分类号】O159
- 【被引频次】3
- 【下载频次】32