关键词: 动态区间值模糊集, 区间值模糊元素迁移, 区间值模糊粗糙集, 单向S-区间值模糊粗糙集

Abstract: This paper introduces the concept of dynamic interval-valued fuzzy approximation in interval-valued fuzzy rough set based on the theory of Z.Pawlak rough set. Based on this, the concept of one-direction S-interval-valued fuzzy rough set is proposed, and its general structure and basic properties are given. The concepts of rough equivalent, cut set and roughness of one-direction S-interval-valued fuzzy rough set are defined, and related properties are discussed and proved. Then, the application and existing value of one-direction S-interval-valued fuzzy rough set is given.

Key words: dynamic interval-valued fuzzy set, interval-valued fuzzy elementary transfers, interval-valued fuzzy rough set, one-direction S-interval-valued fuzzy rough set