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浙江大学学报(理学版)  2022, Vol. 49 Issue (4): 398-407    DOI: 10.3785/j.issn.1008-9497.2022.04.002
数学与计算机科学     
基于概率犹豫模糊相似度的交互式群体决策方法
华维灿1,孙刚2(),王贵君1
1.天津师范大学 数学科学学院,天津 300387
2.湖南工学院 理学院,湖南 衡阳 421002
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摘要:

概率犹豫模糊集(probabilistic hesitant fuzzy set,PHFS)是犹豫模糊集的推广,在犹豫模糊集基础上通过为每个隶属度添加与之相对应的概率,以全面表达专家赋予的初始决策信息,是处理多属性指标决策问题的一种有效工具。首先,介绍了概率犹豫模糊数(PHFN)的基本定义和相关运算,指出了传统PHFN的得分函数和汉明距离的不足,并给出了改进方法。其次,通过适当补充隶属度集合中的元素数量提出了PHFN的汉明距离和相似度概念,依据专家赋予的评价矩阵引入了概率犹豫模糊矩阵(PHFM)相似度。最后,在概率犹豫模糊环境下基于PHFM相似度提出了一种交互式群体评价算法,并用实例验证了算法的有效性。

关键词: 概率犹豫模糊数(PHFN)PHFN汉明距离PHFN相似度交互式群体评价    
Abstract:

Probabilistic hesitant fuzzy set (PHFS) is the extension of hesitant fuzzy set (HFS), that based on hesitant fuzzy set but adding a corresponding probability value for each membership degree. It is an effective tool to solve multi-attribute index decision-making problems, and can fully express the initial decision-making information given by experts. In this paper, we first introduce the basic definition and related operations of probability hesitant fuzzy number (PHFN), and present an improved method concerning the shortcomings of traditional PHFN score function and Hamming distance. Secondly, a new concept of Hamming distance and similarity of PHFN is proposed by appropriately supplementing the number of elements in membership set, and the similarity of probability hesitant fuzzy matrix (PHFM) is introduced according to the evaluation matrix given by experts. Finally, an interactive group evaluation method is given based on PHFM similarity in probabilistic hesitant fuzzy environment, and the effectiveness of the method is verified by an example.

Key words: probabilistic hesitant fuzzy number (PHFN)    PHFN Hamming distance    PHFN similarity    interactive group evaluation
收稿日期: 2021-04-20 出版日期: 2022-07-13
CLC:  O 159  
基金资助: 国家自然科学基金资助项目(61463019);湖南省自然科学基金资助项目(2019JJ40062)
通讯作者: 孙刚     E-mail: gs_sungang@126.com
作者简介: 华维灿(1996—),ORCID:https://orcid/org/0000-0003-2959-2348,女,硕士研究生,主要从事模糊决策和模糊系统研究.
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引用本文:

华维灿,孙刚,王贵君. 基于概率犹豫模糊相似度的交互式群体决策方法[J]. 浙江大学学报(理学版), 2022, 49(4): 398-407.

链接本文:

https://www.zjujournals.com/sci/CN/Y2022/V49/I4/398

标准化PHFN距离测度
按定义9计算按本文定义10计算
γ1={0.4/0.3,0.6/0.7},γ2={0.3/0.40.7/0.6}d(γ1,γ2)=0D(γ1,γ2)=0.042
γ3={0.1/?0.3,0.9/?0.7},γ4={0.3/?0.10.7/?0.9}d(γ3,γ4)=0D(γ3,γ4)=0.089
γ5={0.1/?0.4,0.9/?0.6},γ6={0.4/?0.10.6/?0.9}d(γ5,γ6)=0D(γ5,γ6)=0.129
表1  3组标准化PHFN的距离测度对比
方案c1c2c3c4
Y1{0.85/1}{0.2/0.4,0.5/0.6}{0.45/1}{0.6/1}
Y2{0.7/1}{0.1/0.3,0.6/0.7}{0.57/1}{0.31/1}
Y3{0.7/0.4,0.2/0.6}{0.5/1}{0.16/1}{0.59/1}
Y4{0.3/0.7,0.56/0.1,0.7/0.2}{0.3/1}{0.18/1}{0.4/1}
Y5{0.6/1}{0.49/1}{0.1/0.4,0.3/0.6}{0.75/1}
表2  专家l 1的初始评价矩阵R(1)
方案c1c2c3c4
Y1{0.73/1}{0.6/0.3,0.8/0.7}{0.3/1}{0.82/1}
Y2{0.68/1}{0.5/1}{0.3/0.4,0.7/0.6}{0.5/1}
Y3{0.55/1}{0.59/1}{0.1/0.2,0.3/0.4,0.6/0.4}{0.5/1}
Y4{0.7/0.2,0.8/0.8}{0.1/1}{0.43/1}{0.16/1}
Y5{0.5/0.2,0.6/0.8}{0.5/1}{0.2/1}{0.5/1}
表3  专家l 2的初始评价矩阵R(2)
方案c1c2c3c4
Y1{0.6/1}{0.34/1}{0.3/0.2,0.4/0.8}{0.5/1}
Y2{0.1/1}{0.25/1}{0.31/1}{0.63/1}
Y3{0.2/0.2,0.3/0.8}{0.43/1}{0.12/1}{0.4/1}
Y4{0.4/1}{0.2/0.2,0.4/0.5,0.5/0.3}{0.1/1}{0.12/1}
Y5{0.53/1}{0.1/0.3,0.4/0.7}{0.3/1}{0.2/1}
表4  专家l 3的初始评价矩阵R(3)
方案c1c2c3c4
Y1{0.747/1}

{0.404/0.12,0.490/0.18,

0.527/0.28,0.596/0.42}

{0.354/0.2,0.386/0.8}{0.669/1}
Y2{0.558/1}{0.304/0.3,0.468/0.7}{0.407/0.4,0.553/0.6}{0.496/1}
Y3

{0.339/0.12,0.368/0.18,

0.523/0.08,0.544/0.32}

{0.501/1}

{0.127/0.2,0.147/0.4,

0.334/0.4}

{0.502/1}
Y4

{0.498/0.14,0.562/0.56,

0.570/0.02,0.622/0.04,

0.624/0.08,0.669/0.16}

{0.204/0.2,0.277/0.5,

0.319/0.3}

{0.251/1}{0.237/1}
Y5{0.545/0.2,0.578/0.8}{0.387/0.3,0.465/0.7}{0.204/0.4,0.268/0.6}{0.535/1}
表5  集成后群体评价矩阵R
方案c1c2c3c4
Y1{0.760/1}

{0.402/0.12,0.500/0.18,

0.529/0.28,0.606/0.42}

{0.361/0.2,0.388/0.8}{0.677/1}
Y2{0.585/1}{0.301/0.3,0.487/0.7}{0.421/0.4,0.567/0.6}{0.480/1}
Y3

{0.343/0.12,0.367/0.18,

0.548/0.08,0.565/0.32}

{0.516/1}

{0.129/0.2,0.201/0.4,

0.340/0.4}

{0.513/1}
Y4

{0.499/0.14,0.564/0.56,

0.580/0.02,0.637/0.04,

0.634/0.08,0.684/0.16}

{0.209/0.2,0.269/0.5,

0.305/0.3}

{0.257/1}{0.252/1}
Y5{0.549/0.2,0.582/0.8}{0.408/0.3,0.470/0.7}{0.194/0.4,0.267/0.6}{0.563/1}
表6  修正权重后专家群体综合评价矩阵R'
方法得分函数方案排序
γˉ1γˉ2γˉ3γˉ4γˉ5
文献[5]方法0.4890.3560.2130.3310.287Y1?Y2?Y4?Y5?Y3
文献[10]方法0.4250.3910.2850.3430.253Y1?Y2?Y4?Y3?Y5
本文方法0.2870.1610.1380.1050.154Y1?Y2?Y5?Y3?Y4
表7  3种方法下高等师范院校教学质量Yi 对应的综合评价值(得分函数)和综合排序的比较
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