With respect to multiple attribute decision-making problem in which both the attribute weights and attribute values are interval Numbers, a new method of grey relational analysis (GRA) is proposed.

针对属性权重和属性值均为区间数的多属性决策问题，提出了一种新的灰色关联分析法。首先定义了区间数正理想方案，由此计算出各方案相对于正理想方案的区间数灰色关联系数。

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