Distance and similarity measures of Pythagorean fuzzy sets and their applications to multiple criteria group decision making

Distance and similarity measures of Pythagorean fuzzy sets and their applications to multiple criteria group decision making
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毕达哥拉斯模糊集的距离和相似性测度及其在多标准群决策中的应用

DOI:
10.1002/int.22027
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发表时间:
2018-07
影响因子:
7
通讯作者:
Yin Qian
Yin Qian
中科院分区:
计算机科学2区
文献类型:
--
作者:
Zeng Wenyi;Li Deqing;Yin Qian

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毕达哥拉斯模糊集的主要特征是用五个参数来表征,即隶属度、非隶属度、犹豫度、对隶属的承诺强度和承诺方向。本文首先考察了现有的四种毕达哥拉斯模糊集排序的比较方法,并通过实例指出Yager提出的方法充分考虑了五个参数的影响,比其他方法更有效。随后,我们针对毕达哥拉斯模糊集和毕达哥拉斯模糊数提出了多种距离度量,这些度量考虑了毕达哥拉斯模糊集的五个参数。基于所提出的距离度量,我们给出了一些毕达哥拉斯模糊集的相似性度量。在此基础上提出了一种多准则毕达哥拉斯模糊群决策方法。最后,通过一个算例说明了所提出的群体决策方法的有效性和适用性。
The main feature of Pythagorean fuzzy sets is that it is characterized by five parameters, namely membership degree, nonmembership degree, hesitancy degree, strength of commitment about membership, and direction of commitment. In this paper, we first investigate four existing comparison methods for ranking Pythagorean fuzzy sets and point out by examples that the method proposed by Yager, which considers the influence fully of the five parameters, is more efficient than the other ones. Later, we propose a variety of distance measures for Pythagorean fuzzy sets and Pythagorean fuzzy numbers, which take into account the five parameters of Pythagorean fuzzy sets. Based on the proposed distance measures, we present some similarity measures of Pythagorean fuzzy sets. Furthermore, a multiple criteria Pythagorean fuzzy group decision‐making approach is proposed. Finally, a numerical example is provided to illustrate the validity and applicability of the presented group decision‐making method.
DOI: 10.1016/s0019-9958(65)90241-x
发表时间: 1965-01-01
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