基于PULTS优先度的一致准则决策方法

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针对准则权重未知的多准则群决策问题,提出了一种新的基于随机优势得到的优先度,在概率不确定语言术语集(Probabilistic Uncertain Linguistic Term Sets,PULTS)环境下,通过充分考虑决策者基于个人偏好对各个准则之间重要性给出的评价来确定准则权重,基于一致准则法提出的一个新的决策方法,综合考虑了专家在进行决策时的犹豫程度和所给评价本身蕴含的信息,在一定程度上减少了决策过程中的信息丢失.首先,在P ULTS环境下,定义了不确定度和得分函数,实现了由语言集到数字的转化,并且利用得分函数确定了专家权重,进而得出综合得分矩阵;其次,将随机优势的定义规则应用到概率不确定语言集优先度的定义中,根据各个准则之间的优先度确定了准则的权重;最后,在一致准则决策法的基础上做了相关改进,并将其应用到了P ULTS环境中,通过数值算例验证了新的决策方法的可行性和有效性.
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