关键词: 时序广义模糊软集, 几何Bonferroni平均算子, 时序权重, 属性权重

Abstract: Under uncertain conditions, information for decision-making may be inexact and constantly changes with times series because of the complexity of circumstance. Based on generalized fuzzy soft sets, this paper presents the Time series Generalized Fuzzy Soft Set（TGFSS） and its union operation, intersection operation and scalar multiplication operation. Secondly, according to Geometrical Bonferroni Mean（GBM） operator and S-norm, TGFSSGBM operator is provided to deal with  the relevance of  different decision-making attributes and the relevance of information from different time points, and some properties of TGFSSGBM operator are also proofed. Subsequently, TGFSSGWBM operator considering weights of different time points is given. On the basis of definitions and proofs mentioned above, a dynamic decision-making model based on TGFSSGWBM operator is put forward. Finally, a numerical example and comparisons among different operators verify the feasibility and effectiveness of the decision-making model provided.

Key words: Time series Generalized Fuzzy Soft Sets（TGFSS）, Geometrical Bonferroni Mean（GBM） operator, weights of time series, weights of attributes