摘要
讨论二型模糊真值在连续t-模(┬)与t-余模(┴)下的性质.首先给出具有单调函数的模糊真值性质,二型模糊集在最小t-模与最大t-余模下有限并与有限交的最大值性特征;然后讨论凸模糊集在最小t-模与最大t-余模下的有限并与有限交性质;最后得到具有相同最大值的凸模糊集在二型模糊的并与交运算下构成一个格.
In this paper,we discuss some properties of type-2 fuzzy truth value with minimum t-norm and maximum t-conorm.First,we give some properties of fuzzy truth value with monotonic function and properties of the maximum value of type-2 fuzzy sets with join and meet under minimum t-norm and maximum t-conorm. Next,we discuss properties of convex fuzzy sets with join and meet under minimum t-norm and maximum t-conorm. In the end,we prove that convex fuzzy sets with the same maximum under join and meet operations of type-2 fuzzy truth value form a lattice.
作者
刘志强
谭武霜
熊清泉
LIU Zhiqiang;TAN Wushuang;XIONG Qingquan(College of Mathematics and Software Science, Sichuan Normal University, Chengdu 610066, Sichuan)
出处
《四川师范大学学报(自然科学版)》
CAS
北大核心
2018年第4期463-470,共8页
Journal of Sichuan Normal University(Natural Science)
基金
国家自然科学基金(11201325)
四川省科技厅应用基础项目(2016JY0235)
四川省教育厅重点项目(16ZA0053)
关键词
二型模糊集
模糊真值
并与交运算
最小t-模
最大t-余模
type-2 fuzzy sets
fuzzy truth values
join and meet operations
minimum t-norm
maximum t-eonorm