Consistency-index-driven group decision making under the environment of triangular fuzzy numbers

Consistency-index-driven group decision making under the environment of triangular fuzzy numbers
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三角模糊数环境下一致性指标驱动的群体决策

DOI:
10.1007/s00500-020-05278-9
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发表时间:
2020-08
期刊:
影响因子:
4.1
通讯作者:
Liu Tong
Liu Tong
中科院分区:
计算机科学3区
文献类型:
--
作者:
Liu Fang;Huang Caixia;Liu Tong

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模糊环境下的群体决策是近年来的研究热点之一。三角模糊数可以作为一种有效的工具来捕捉决策者所遇到的模糊性。本文提出了一种新的GDM模型,该模型采用三角模糊乘法倒数矩阵(TFMRMs)来表达dm的意见。构造了一个广义的一致性指标来量化tfmrm的不一致性程度,体现了模糊集合理论的基本思想,即万物都具有一定的弹性。研究了新一致性指标的有趣性质,并讨论了tfmrm的可接受一致性。然后,基于所提出的一致性指标,提出了一个算子对单个tfmrm进行聚合。进一步研究了集体TFMRM的性质。最后,详细阐述了一种利用tfmrm求解GDM问题的新算法。数值结果说明了所提出的一致性指标驱动GDM模型的优越性和新颖性。
Group decision making (GDM) under a fuzzy environment is one of the research focuses recently. Triangular fuzzy number can be used as an effective tool to capture the vagueness encountered by decision makers (DMs). In this study, a novel GDM model is proposed when triangular fuzzy multiplicative reciprocal matrices (TFMRMs) are adopted to express the opinions of DMs. A generalized consistency index is constructed to quantify the inconsistency degree of TFMRMs, which reflects the basic idea of fuzzy set theory that everything has some elasticity. The interesting properties of the new consistency index are studied, and acceptable consistency of TFMRMs is discussed. Then, based on the proposed consistency index, an operator is proposed to aggregate the individual TFMRMs. The properties of the collective TFMRM are further investigated. Finally, a new algorithm for solving a GDM problem with TFMRMs is elaborated on. Numerical results are reported to illustrate the advantages and novelty of the proposed consistency-index-driven GDM model.
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发表时间: 2020
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影响因子: 4.1
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