Multi-attribute group decision-making problems are considered where information on both attribute weights and value scores of consequences is incomplete.In group decision analysis,if preference information about alter...Multi-attribute group decision-making problems are considered where information on both attribute weights and value scores of consequences is incomplete.In group decision analysis,if preference information about alternatives is provided by participants,it should be verified whether there exist compromise weights that can support all the preference relations.The different compromise weight vectors may differ for the ranking of the alternatives.In the case that compromise weights exist,the method is proposed to find out all the compromise weight vectors in order to rank the alternatives.Based on the new feasible domain of attribute weights determined by all the compromise weight vectors and the incomplete information on value scores of consequences,dominance relations between alternatives are checked by a nonlinear goal programming model which can be transformed into a linear one by adopting a transformation.The checked dominance relations uniformly hold for all compromise weight vectors and the incomplete information on value scores of consequences.A final ranking of the alternatives can be obtained by aggregating these dominance relations.展开更多
A method is proposed to deal with the uncertain multiple attribute group decision making problems,where 2-dimension uncertain linguistic variables(2DULVs)are used as the reliable way for the experts to express their f...A method is proposed to deal with the uncertain multiple attribute group decision making problems,where 2-dimension uncertain linguistic variables(2DULVs)are used as the reliable way for the experts to express their fuzzy subjective evaluation information.Firstly,in order to measure the 2DULVs more accurately,a new method is proposed to compare two 2DULVs,called a score function,while a new function is defined to measure the distance between two 2DULVs.Secondly,two optimization models are established to determine the weight of experts and attributes based on the new distance formula and a weighted average operator is used to determine the comprehensive evaluation value of each alternative.Then,a score function is used to determine the ranking of the alternatives.Finally,the effectiveness of the proposed method is proved by an illustrated example.展开更多
With the fast growth of Chinese economic, more and more capital will be invested in environmental projects. How to select the environmental investment projects （alternatives） for obtaining the best environmental qua...With the fast growth of Chinese economic, more and more capital will be invested in environmental projects. How to select the environmental investment projects （alternatives） for obtaining the best environmental quality and economic benefits is an important problem for the decision makers. The purpose of this paper is to develop a decision-making model to rank a finite number of alternatives with several and sometimes conflicting criteria. A model for ranking the projects of municipal sewage treatment plants is proposed by using exports＇ information and the data of the real projects. And, the ranking result is given based on the PROMETHEE method. Furthermore, by means of the concept of the weight stability intervals （WSI）, the sensitivity of the ranking results to the size of criteria values and the change of weights value of criteria are discussed. The result shows that some criteria, such as “proportion of benefit to project cost”, will influence the ranking result of alternatives very strong while others not. The influence are not only from the value of criterion but also from the changing the weight of criterion. So, some criteria such as “proportion of benefit to project cost” are key critera for ranking the projects. Decision makers must be cautious to them.展开更多
A novel group decision-making （GDM） method based on intuitionistic fuzzy sets （IFSs） is developed to evaluate the ergonomics of aircraft cockpit display and control system （ACDCS）. The GDM process with four step...A novel group decision-making （GDM） method based on intuitionistic fuzzy sets （IFSs） is developed to evaluate the ergonomics of aircraft cockpit display and control system （ACDCS）. The GDM process with four steps is discussed. Firstly, approaches are proposed to transform four types of common judgement representations into a unified expression by the form of the IFS, and the features of unifications are analyzed. Then, the aggregation operator called the IFSs weighted averaging （IFSWA） operator is taken to synthesize decision-makers’ （DMs’） preferences by the form of the IFS. In this operator, the DM’s reliability weights factors are determined based on the distance measure between their preferences. Finally, an improved score function is used to rank alternatives and to get the best one. An illustrative example proves the proposed method is effective to valuate the ergonomics of the ACDCS.展开更多
氯化工艺在工业生产中广泛应用,但极易引发火灾、爆炸、中毒等事故。为全面识别和评估氯化工艺影响因素,确保生产过程的安全性和可靠性,提出了基于决策试验与评估实验法(Decision Making Trial and Evaluation Laboratory,DEMATEL)、解...氯化工艺在工业生产中广泛应用,但极易引发火灾、爆炸、中毒等事故。为全面识别和评估氯化工艺影响因素,确保生产过程的安全性和可靠性,提出了基于决策试验与评估实验法(Decision Making Trial and Evaluation Laboratory,DEMATEL)、解释结构模型(Interpretative Structural Modeling,ISM)和层次分析法(Analytic Hierarchy Process,AHP)的氯化工艺评价模型。首先,确定了36个氯化工艺评价指标,运用DEMATEL和ISM,分析氯化工艺影响因素间的因果关系和关键影响因素,并建立递阶层次结构模型。其次,以制备四氯化钛的氯化工艺为例,利用AHP计算因素的层次权重,并将由DEMATEL得到的中心度融入层次权重中,确定该氯化工艺影响因素综合权重。该模型在氯化工艺安全评价中具有较好的可行性和实用性,可为风险预警提供支持,推动化工工艺的安全稳定发展。展开更多
在物流供应商选择过程中,针对分布式评价语言环境下专家评价信息不完整问题,提出社会网络下考虑信息补全的群决策方法。考虑专家接受间接信任关系可能性的大小,提出一种新的信任传递模型来完善专家间的信任值;首次拓展Jensen-Shannon散...在物流供应商选择过程中,针对分布式评价语言环境下专家评价信息不完整问题,提出社会网络下考虑信息补全的群决策方法。考虑专家接受间接信任关系可能性的大小,提出一种新的信任传递模型来完善专家间的信任值;首次拓展Jensen-Shannon散度到分布式评价语言距离度量上,用于衡量专家之间的相似度;基于K-临近算法,设计改进的残缺评价信息补全方法;对专家信息进行集结并构建共识度量与反馈调节机制,得到群决策矩阵,并运用改进的EDAS(evaluation based on distance from average solution,离平均方案(平均解)距离)方法对方案进行排序;通过物流服务供应商综合评估算例验证该群决策方法的可行性和有效性。展开更多
为了评价多因素耦合作用下高海拔地区铁路工程施工人员作业疲劳状况。首先,建立作业疲劳影响因素指标体系,并根据涌现理论,从工作本身、作业人员、作业环境和组织管理4个维度将耦合作用分为单因素耦合、双因素耦合和多因素耦合;其次,以...为了评价多因素耦合作用下高海拔地区铁路工程施工人员作业疲劳状况。首先,建立作业疲劳影响因素指标体系,并根据涌现理论,从工作本身、作业人员、作业环境和组织管理4个维度将耦合作用分为单因素耦合、双因素耦合和多因素耦合;其次,以高海拔地区铁路工程施工项目为例,利用熵权-决策实验室分析(Entropy Weight Method-Decision Making Trial and Evaluation Laboratory, EWM-DEMATEL)法确定指标权重,构建耦合度模型,进而对作业疲劳影响因素间的耦合关系进行定量分析,寻找关键耦合因素;最后,建立施工人员作业疲劳“工-管”耦合系统的系统动力学模型,并动态观测疲劳影响因素对施工人员疲劳水平发展趋势的影响。结果显示,工作本身和组织管理的耦合度最大,且疲劳水平的增长速率在第5周后明显增加。在施工作业过程中,应提前建立有针对性的管理措施来降低疲劳影响因素之间的耦合效应。展开更多
基金supported by the Humanities and Social Sciences Foundation of Ministry of Education of China(09YJC630229)Scientific Research Foundation of Guangxi University for Nationalities for Talent Introduction(200702YZ01)Science and Technology Project of State Ethnic Affairs Commission(09GX03)
文摘Multi-attribute group decision-making problems are considered where information on both attribute weights and value scores of consequences is incomplete.In group decision analysis,if preference information about alternatives is provided by participants,it should be verified whether there exist compromise weights that can support all the preference relations.The different compromise weight vectors may differ for the ranking of the alternatives.In the case that compromise weights exist,the method is proposed to find out all the compromise weight vectors in order to rank the alternatives.Based on the new feasible domain of attribute weights determined by all the compromise weight vectors and the incomplete information on value scores of consequences,dominance relations between alternatives are checked by a nonlinear goal programming model which can be transformed into a linear one by adopting a transformation.The checked dominance relations uniformly hold for all compromise weight vectors and the incomplete information on value scores of consequences.A final ranking of the alternatives can be obtained by aggregating these dominance relations.
基金This work was supported by the Natural Science Foundation of Liaoning Province(2013020022).
文摘A method is proposed to deal with the uncertain multiple attribute group decision making problems,where 2-dimension uncertain linguistic variables(2DULVs)are used as the reliable way for the experts to express their fuzzy subjective evaluation information.Firstly,in order to measure the 2DULVs more accurately,a new method is proposed to compare two 2DULVs,called a score function,while a new function is defined to measure the distance between two 2DULVs.Secondly,two optimization models are established to determine the weight of experts and attributes based on the new distance formula and a weighted average operator is used to determine the comprehensive evaluation value of each alternative.Then,a score function is used to determine the ranking of the alternatives.Finally,the effectiveness of the proposed method is proved by an illustrated example.
基金Shanghai Leading Academic Discipline Project (T0502)Shanghai Municipal Educational Commission Project (05EZ32).
文摘With the fast growth of Chinese economic, more and more capital will be invested in environmental projects. How to select the environmental investment projects （alternatives） for obtaining the best environmental quality and economic benefits is an important problem for the decision makers. The purpose of this paper is to develop a decision-making model to rank a finite number of alternatives with several and sometimes conflicting criteria. A model for ranking the projects of municipal sewage treatment plants is proposed by using exports＇ information and the data of the real projects. And, the ranking result is given based on the PROMETHEE method. Furthermore, by means of the concept of the weight stability intervals （WSI）, the sensitivity of the ranking results to the size of criteria values and the change of weights value of criteria are discussed. The result shows that some criteria, such as “proportion of benefit to project cost”, will influence the ranking result of alternatives very strong while others not. The influence are not only from the value of criterion but also from the changing the weight of criterion. So, some criteria such as “proportion of benefit to project cost” are key critera for ranking the projects. Decision makers must be cautious to them.
基金supported by the National Basic Research Program of China (973 Program) (2010CB734104)
文摘A novel group decision-making （GDM） method based on intuitionistic fuzzy sets （IFSs） is developed to evaluate the ergonomics of aircraft cockpit display and control system （ACDCS）. The GDM process with four steps is discussed. Firstly, approaches are proposed to transform four types of common judgement representations into a unified expression by the form of the IFS, and the features of unifications are analyzed. Then, the aggregation operator called the IFSs weighted averaging （IFSWA） operator is taken to synthesize decision-makers’ （DMs’） preferences by the form of the IFS. In this operator, the DM’s reliability weights factors are determined based on the distance measure between their preferences. Finally, an improved score function is used to rank alternatives and to get the best one. An illustrative example proves the proposed method is effective to valuate the ergonomics of the ACDCS.
文摘氯化工艺在工业生产中广泛应用,但极易引发火灾、爆炸、中毒等事故。为全面识别和评估氯化工艺影响因素,确保生产过程的安全性和可靠性,提出了基于决策试验与评估实验法(Decision Making Trial and Evaluation Laboratory,DEMATEL)、解释结构模型(Interpretative Structural Modeling,ISM)和层次分析法(Analytic Hierarchy Process,AHP)的氯化工艺评价模型。首先,确定了36个氯化工艺评价指标,运用DEMATEL和ISM,分析氯化工艺影响因素间的因果关系和关键影响因素,并建立递阶层次结构模型。其次,以制备四氯化钛的氯化工艺为例,利用AHP计算因素的层次权重,并将由DEMATEL得到的中心度融入层次权重中,确定该氯化工艺影响因素综合权重。该模型在氯化工艺安全评价中具有较好的可行性和实用性,可为风险预警提供支持,推动化工工艺的安全稳定发展。
文摘在物流供应商选择过程中,针对分布式评价语言环境下专家评价信息不完整问题,提出社会网络下考虑信息补全的群决策方法。考虑专家接受间接信任关系可能性的大小,提出一种新的信任传递模型来完善专家间的信任值;首次拓展Jensen-Shannon散度到分布式评价语言距离度量上,用于衡量专家之间的相似度;基于K-临近算法,设计改进的残缺评价信息补全方法;对专家信息进行集结并构建共识度量与反馈调节机制,得到群决策矩阵,并运用改进的EDAS(evaluation based on distance from average solution,离平均方案(平均解)距离)方法对方案进行排序;通过物流服务供应商综合评估算例验证该群决策方法的可行性和有效性。
文摘为了评价多因素耦合作用下高海拔地区铁路工程施工人员作业疲劳状况。首先,建立作业疲劳影响因素指标体系,并根据涌现理论,从工作本身、作业人员、作业环境和组织管理4个维度将耦合作用分为单因素耦合、双因素耦合和多因素耦合;其次,以高海拔地区铁路工程施工项目为例,利用熵权-决策实验室分析(Entropy Weight Method-Decision Making Trial and Evaluation Laboratory, EWM-DEMATEL)法确定指标权重,构建耦合度模型,进而对作业疲劳影响因素间的耦合关系进行定量分析,寻找关键耦合因素;最后,建立施工人员作业疲劳“工-管”耦合系统的系统动力学模型,并动态观测疲劳影响因素对施工人员疲劳水平发展趋势的影响。结果显示,工作本身和组织管理的耦合度最大,且疲劳水平的增长速率在第5周后明显增加。在施工作业过程中,应提前建立有针对性的管理措施来降低疲劳影响因素之间的耦合效应。
