关键词: 覆盖, 直觉模糊集, 粗糙度, 粗糙熵, 粗糙集

Abstract: Based on the analysis of a class of covering rough intuitionistic fuzzy set model, it gives some technical improvements for an existing definition of roughness degree. Furthermore, rough entropy is introduced to the covering rough intui-tionistic fuzzy set mode and its uncertainly measure is discussed. An example illustrates the efficiency of the proposed roughness entropy.

Key words: covering, intuitionistic fuzzy sets, rough degree, rough entropy, rough set