系统工程与电子技术 ›› 2023, Vol. 45 ›› Issue (11): 3524-3531.doi: 10.12305/j.issn.1001-506X.2023.11.19

• 系统工程 • 上一篇    下一篇

基于空间信息表征的勾股模糊集空间距离测度

王嘉丽, 江文奇, 陶希闻   

  1. 南京理工大学经济管理学院, 江苏 南京 210094
  • 收稿日期:2022-04-18 出版日期:2023-10-25 发布日期:2023-10-31
  • 通讯作者: 江文奇
  • 作者简介:王嘉丽(1994—), 女, 博士研究生, 主要研究方向为多属性决策、模糊数据集
    江文奇(1975—), 男, 教授, 博士研究生导师, 博士, 主要研究方向为复杂决策
    陶希闻(1995—), 男, 博士研究生, 主要研究方向为动态行为决策
  • 基金资助:
    国家自然科学基金(71971117);教育部人文社科基金(17YJA630035);江苏省研究生科研与实践创新计划(KYCX22_0499)

Spatial distance measure of Pythagorean fuzzy sets based on spatial information representation

Jiali WANG, Wenqi JIANG, Xiwen TAO   

  1. School of Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2022-04-18 Online:2023-10-25 Published:2023-10-31
  • Contact: Wenqi JIANG

摘要:

勾股模糊集拓展了直觉模糊集的信息表征内容, 具有体现更大信息空间的优势, 构建勾股模糊集的距离测度是实施勾股模糊型决策的核心环节。本文首先分析了现有4种勾股模糊集距离测度的缺陷, 构建了融合隶属度、非隶属度、犹豫度和自信度的勾股模糊集空间信息表征模型, 进而提出了基于勾股模糊集空间质心的距离测度。其次, 拓展了距离测度的具体特性, 比较了所提距离测度模型在体现犹豫度和解决反直觉情形方面的优势。最后, 模式识别和医疗诊断等应用研究证明了所提距离测度的准确性和优越性。

关键词: 勾股模糊集, 距离测度, 空间质心, 自信度

Abstract:

Pythagorean fuzzy set expands the information representation content of intuitionistic fuzzy sets and has the advantage of reflecting larger information space. Constructing the distance measure of Pythagorean fuzzy sets is the core link of implementing Pythagorean fuzzy decision-making. Firstly, this paper deeply analyzes the defects of the existing four distance measures of Pythagorean fuzzy sets, establishes a spatial information representation model of Pythagorean fuzzy sets integrating the membership degree and nonmembership degree, hesitation degree and strength of commitment, and then puts forward a novel distance measure based on the spatial centroid of Pythagorean fuzzy sets. Secondly, the specific properties of the proposed distance measure are extended, and the advantages of this distance measure model in reflecting hesitation and solving counterintuitive situations are proven and compared. Finally, the application research of pattern recognition and medical diagnosis verifies the accuracy and superiority of this distance measure between Pythagorean fuzzy sets.

Key words: Pythagorean fuzzy sets, distance measure, space centroid, strength of commitment

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