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A Novel Linguistic Z-Number QUALIFLEX Method and Its Application to Large Group Emergency Decision Making
Scientific Programming Pub Date : 2020-06-26 , DOI: 10.1155/2020/1631869
Xue-Feng Ding 1 , Li-Xia Zhu 1 , Mei-Shun Lu 1 , Qi Wang 1 , Yi-Qi Feng 1
Affiliation  

After an unconventional emergency event occurs, a reasonable and effective emergency decision should be made within a short time period. In the emergency decision making process, decision makers’ opinions are often uncertain and imprecise, and determining the optimal solution to respond to an emergency event is a complex group decision making problem. In this study, a novel large group emergency decision making method, called the linguistic Z-QUALIFLEX method, is developed by extending the QUALIFLEX method using linguistic Z-numbers. The evaluations of decision makers on the alternative solutions are first expressed as linguistic Z-numbers, and the group decision matrix is then constructed by aggregating the evaluations of all subgroups. The QUALIFLEX method is used to rank the alternative solutions for the unconventional emergency event. Besides, a real-life example of emergency decision making is presented, and a comparison with existing methods is performed to validate the effectiveness and practicability of the proposed method. The results show that the proposed linguistic Z-QUALIFLEX can accurately express the evaluations of the decision makers and obtain a more reasonable ranking result of solutions for emergency decision making.

中文翻译:

一种新的语言 Z 数 QUALIFLEX 方法及其在大型群体应急决策中的应用

非常规突发事件发生后,应在短时间内做出合理有效的应急决策。在应急决策过程中,决策者的意见往往具有不确定性和不精确性,确定应对突发事件的最优方案是一个复杂的群体决策问题。在这项研究中,通过使用语言 Z 数扩展 QUALIFLEX 方法,开发了一种新的大型群体紧急决策方法,称为语言 Z-QUALIFLEX 方法。决策者对备选解决方案的评价首先表示为语言 Z 数,然后通过聚合所有子群的评价来构建群决策矩阵。QUALIFLEX 方法用于对非常规紧急事件的替代解决方案进行排序。除了,给出了一个真实的应急决策实例,并与现有方法进行了比较,以验证所提出方法的有效性和实用性。结果表明,所提出的语言学Z-QUALIFLEX能够准确表达决策者的评价,获得更合理的应急决策解决方案排序结果。
更新日期:2020-06-26
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