Abstract: To support the consensus decision making，this paper de?nes a new concept，maximum consensus rank.Based on consensus ranking tree，an algorithm is developed to determine the maximum consensus rank from the users’ ranking data and also to identify conflict items that need further negotiation.Extensive simulation experiments are carried out，and the results indicate that the proposed method is computationally ef?cient.

Key words: group ranking aggregation, ranking tree, consensus decision

摘要： 为了支持共识决策过程，引入最大共识排序概念，设计了基于共识排序树的群排序集结算法。该算法能够从排序数据中发现最大共识排序和需要进一步协商的冲突项目。应用模拟数据进行实验，结果表明了这种计算方法的有效性。

关键词: 群排序集结, 排序树, 共识决策