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针对群体信息集结时点靠后、粒度较粗造成偏差放大的问题,通过定义单点信息相似度提出单点意见一致性的群体信息集结方式,使集结信息更准确。针对属性值为语言评价信息的模糊群体决策问题,将语言评价值转化为三角模糊数,实现单点意见一致性集结,并计算方案与理想点的相对接近度得到排序结果。最后实例表明了该集结方式和决策方法的有效性。
Aiming at the problem that the group information is gathered later and the granularity is larger, the problem of amplification of deviation is enlarged. By means of defining the similarity of single-point information, a group information aggregation method of single-point consensus is proposed to make the assembly information more accurate. Aiming at the fuzzy group decision-making problem whose attribute value is linguistic evaluation information, the linguistic evaluation value is transformed into the triangular fuzzy number to achieve the consistency of single-point opinion, and the relative proximity between the scheme and the ideal point is calculated to obtain the ranking result. The last example shows the effectiveness of the assembly method and decision-making method.