基于密度算子的多阶段群体评价方法及应用  

A Multi-phase Group Evaluation Method Based on Density Operator and Its Application

作　　者：易平涛[1] 郭亚军[1] 李伟伟[1] 

机构地区：[1]东北大学工商管理学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2011年第5期752-756,共5页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(71071030;71071031);中国博士后科学基金特别资助项目(200902545);辽宁省博士启动基金资助项目(20081020)

摘　　要：从密度算子的角度研究了多阶段群体评价信息的集结问题,并比较分析了各集结途径的评价结果.首先基于评价者判断的离散程度及与群体判断的接近程度,给出了一种评价者权重的确定方法,并基于时间度的概念,给出了阶段权重向量的确定方法.在此基础上,基于密度算子对评价信息进行多途径集结,同时考虑了同一时段和不同时段评价信息分布的疏密程度.最后,通过一个算例对多阶段群体评价信息集结方法的应用进行了说明,并对评价结果进行了比较分析.Research was conducted on a multi-phase group evaluation information aggregation method based on density operator.The weight of each evaluator was determined by degree of judgment dispersion and individual judgment accessing to group judgment.In addition,the multi-phase weighting vector was given through the notion of timing degree.Based on this,evaluation information was aggregated through a multi-approach.This aggregation method considered the evaluation information distribution density,which was not only at the same time but also at different times.Finally,an example is given to demonstrate the aggregation approach,and final evaluation results are analyzed.

关 键 词：综合评价 多阶段群体评价 信息集结 密度算子 密度加权向量 

分 类 号：C934[经济管理—管理学]