提出了改进的群组G2方法来确定综合评价问题中的指标权重.论文的创新与特色一是通过"容度"和"相邻度"给最小类的非空交集赋权确定空交集时的综合赋值区间、进而得到了赋权需要的中值和区间长度,解决了在G2方法赋权时空交集无法给指标赋权的现象.二是通过以相邻度为权重对偏离率加权平均的方式确定风险态度因子,使其绝对值满足小于等于1/2的计算区间映射函数的必要条件.解决了现有研究的算法计算出的风险态度因子难免出现的大于1/2的情况、导致后续过程无法确定权重的现象.
This paper proposes an improved group-G2 method to determine the index weight in the comprehensive evaluation.The innovation and characteristic of this paper is that first it uses "capacity degree" and "neighborhood degree" to determine the weight of the minimal class nonempty intersection,and then obtains the comprehensive valuation interval,the median and the length of the interval.Therefore,it solves the problem that the index weight can not be calculated by using the original gorup-G2 when the intersect...