基于属性圆的多属性决策云模型构建与可靠性分析应用

摘要

为了使云模型能直观方便地表示以及计算多属性决策问题,并且适应专家给出的范围数据,对提出的属性圆表示多属性的方法进行了改造,从而通过属性圆来计算云模型的特征参数;给出了改造后属性圆的定义、性质和绘制过程,以及如何通过属性圆计算表示某决策级别的云模型特征参数,包括:定义决策系统、属性归一化、属性圆特征及性质、属性圆面积求法、基于属性圆的云模型计算;通过实例给出了云模型的计算过程和应用方案.根据数据处理和专家分析,计算得到表示系统可靠性风险为可接受决策级别的云模型,进而构成决策云集合,便可用于实际系统的可靠性级别多属性决策.%In order to make the cloud model can be easily and conveniently used to express and calculate the problem of multi-attribute decision,and adapt to the range data that the expert gives,this paper proposed an improved method to transform the attribute circle,and then calculated the characteristic parameters of the cloud model by the attribut circle.The definition,property and drawing process of the attribute circle were given,and how to calculate the characteristic parameters of the cloud model of a decision level by using attribute circle was given,including defining the decision system,attribute normalization,attribute circle feature and property,calculation method of attribute circle area and cloud model calculation based on attribute circle.Through an example,the process and application of cloud model were given.According to the data processing and expert analysis,the acceptable decision level of the cloud model was obtained for the reliability risk of the system.And then this paper made the decision,which can be used to make the reliability level of multiple attribute decision in the actual system.