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针对专家群体存在阶段差异的多阶段决策问题,提出了一类双重信息的多阶段群体决策方法.构建基于群体决策一致性的专家权重测算模型,研究各阶段专家重要度的具体形式;分析各阶段专家群体决策质量的动态变动情况,揭示阶段权重与群体决策一致性的内在联系;研究语言决策信息的多阶段灰靶决策方法,集结方案在各阶段多属性下的语言评价信息,并设计相应算法用以计算机仿真实验;针对军事保障车使用性能的多阶段评价问题开展案例研究,验证了上述方法的可行性和有效性.“,”A novel multi-stage group decision-making method for aggregating linguistic information is proposed,which can be utilized in multi-stage decision problems with different decision groups in different stages.Specifically,a programming model concerning the consistency of group preference is proposed,which can be employed to calculate the expert weights in each stage.Additionally,based on studies on the variation of group decision-making quality in all stages,the relation between stage weight and the consistence of group preference is introduced for obtaining the stage weight.Moreover,a multi-stage grey target decision-making method for linguistic information is designed to aggregate multi-attribute linguistic information existing in various stages.An algorithm for multi-stage group decision-making concerning different groups and dual information is also proposed.Finally,the evaluation of military security vehicles is selected as a case study,which can be conducted to verify the feasibility and effectiveness of the above method.