关键词: 动态多属性决策, Pythagorean模糊语言, 动态Pythagorean模糊语言加权平均算子, VIKOR方法

Abstract: For the deficiency of intuitionistic fuzzy information solving the dynamic multi-attribute decision making （DMADM） problem, this paper proposes a VIKOR method to accommodate Pythagorean fuzzy linguistic circumstances for DMADM problem. Firstly, the score function, accuracy function, and distance measures of the Pythagorean fuzzy linguistic information are introduced. Secondly, the dynamic Pythagorean fuzzy linguistic weighted average（DPFLWA） operator is presented, some properties of the DPFLWA operator are discussed. Finally, based on the DPFLWA operator and VIKOR method, a novel dynamic Pythagorean fuzzy linguistic multiple attribute decision making（DPFL-MADM） method is developed. A numerical example about the choice of third party reverse logistics service providers is used to illustrate the applicability and effectiveness of the proposed method.

Key words: dynamic multi-attribute decision making, Pythagorean fuzzy linguistic, dynamic Pythagorean fuzzy linguistic weighted average operator, VIKOR method