Abstract: A method for group decision making is proposed based on grey incidence. The weights of the experts are determined by the grey incidence based on the decision matrices given by the experts. The group decision matrix is obtained by weighting the experts’ matrices; the weights of attributes are obtained based on the maximizing deviation. The integration incidence degrees of the alternatives are calculated, by which the alternatives are ordered. The example illustrates that the comparative differences of alternatives gotten by the method are large. Consequently the science and availability are improved. In addition the mistake in Xu Xuanhua et al’s paper is pointed and corrected.

Key words: multiple attribute group decision making, grey incidence, maximizing deviation

摘要： 基于灰色关联度的思想提出了一种群决策方法。该方法根据各专家给出的决策矩阵，利用灰色关联度的思想确定专家权重，得出群决策矩阵，基于偏差最大化的思想计算属性权重，计算各方案的综合关联度，据此确定方案的排序。算例表明了利用此方法得出的方案综合关联度之间相对差距较大，提高了决策的科学性和有效性。指出了徐选华等人提出的算例中的错误，予以纠正。

关键词: 多属性群决策, 灰色关联度, 偏差最大化