关键词: 软集, 犹豫模糊集, 犹豫模糊软集, 时序模糊软集, 时序犹豫模糊软集

Abstract: When the information of hesitant fuzzy sets dynamically varies with time, the hesitant fuzzy soft sets are extended to the time-series hesitant fuzzy soft sets through the introduction of the time parameter. Based on the concept of time-series hesitant fuzzy soft sets, the fundamental operational rules are defined, the corresponding operation results are analyzed and the properties are discussed. A decision method of time-series hesitant fuzzy sets is given, and it can be verified the feasibility and effectiveness of the proposed method with a practical example.

Key words: soft sets, hesitant fuzzy sets, hesitant fuzzy soft sets, time-series fuzzy soft sets, time-series hesitant fuzzy soft sets