Time-sequential hesitant fuzzy set and its application to multi-attribute decision making

Abstract The hesitant fuzzy set has been an important tool to address problems of decision making. There are several various improved sets, such as dual set, interval-valued and intuitionistic however, no one kind sets could reflect attitude characteristics makers on time-sequences. In reality, time-sequence is sector situations might have different knowledges the same alternative at moments. To perfect description obtain more reasonable results making, we define a new namely, time-sequential set. Meanwhile, its corresponding basic operators, score function distance measures proposed. We also propose concept fluctuated information describe degrees By comprehensively utilizing function, under synthetic model Two illustrated examples real-application utilized illustrate effectiveness advantage