考虑区间灰数风险度的多属性灰靶决策模型

The Multi-attribute Grey Target Decision Making Model Including the Risk Degree of Interval Grey Number

针对目前多属性灰靶决策模型研究中,区间灰数比较大小公式中的只以区间大小而没有考虑不确定性,无法度量决策者给出区间灰数风险的问题,文中提出了基于灰数集的风险度的概念,改进了现有的灰靶多属性决策模型,通过风险偏好系数,得到包含风险因素的综合评价结果。算例证明了该方法的可行性和合理性。

There are some disadvantages for the present research on the multi - attribute grey target decision making model. The interval grey numbers are compared by the interval size and the uncertainty is not considered. It cannot measure the risk of interval grey number expressed by the decision makers. This paper proposes the concept of risk degree, and improves the present grey target model. This approach can obtain the comprehensive evaluation resuits by means of risk preference coefficient. Numerical examples are provided to the illustrate feasibility and rationality of the proposed approach.