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
针对传统防空目标威胁评估中威胁因素考虑不全、定性指标量化不精确以及属性指标权重固定不变等方面的不足,在综合考虑目标静态和动态属性的基础上,提出了基于直觉模糊理想解逼近(technique for order preference by similarity to an i...针对传统防空目标威胁评估中威胁因素考虑不全、定性指标量化不精确以及属性指标权重固定不变等方面的不足,在综合考虑目标静态和动态属性的基础上,提出了基于直觉模糊理想解逼近(technique for order preference by similarity to an ideal solution, TOPSIS)法和变权多准则优化妥协决策(multi-criteria optimization compromise decision-making, VIKOR)法的防空目标威胁综合评估方法。首先,直觉模糊集和隶属度函数分别用于静态和动态属性指标的量化。然后,构建直觉模糊TOPSIS模型和融合变权的VIKOR模型进行静态属性和动态属性威胁评估。最后,进行综合威胁度计算。仿真验证表明,目标威胁综合评估方法与仅考虑目标运动状态信息的传统评估方法相比,评估结果更加合理有效,更符合防空作战实际。展开更多
为了准确评价防波堤运营期健康状态的等级,建立了基于改进直觉模糊集逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)的防波堤健康状态评价模型。首先,通过最小熵原理对多种组合权重方法进...为了准确评价防波堤运营期健康状态的等级,建立了基于改进直觉模糊集逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)的防波堤健康状态评价模型。首先,通过最小熵原理对多种组合权重方法进行最优化处理,以改进直觉模糊集TOPSIS法。其次,以安全性、适用性、耐久性3个维度建立防波堤运营期健康状态评价指标体系,该指标体系采用3个定性指标和8个定量指标进行表征。最后,将改进直觉模糊集TOPSIS模型应用到渤海基地港池护岸防波堤运营期健康状态评价中,并与改进前模型计算结果、实际情况进行对比分析。结果表明,改进模型计算结果与实际情况比较一致,优于改进前评价结果,为防波堤运营期健康状态评价提供了一种新的途径。展开更多
为解决犹豫模糊集(hesitant fuzzy set,HFS)隶属度数值个数不一致的问题,讨论了现有数值延拓(numerical extending,NE)方法的局限性,提出基于Normative算子的HFS NE方法,在没有新息加入的条件下,依次选取现有HFS隶属度可能值的均值作为...为解决犹豫模糊集(hesitant fuzzy set,HFS)隶属度数值个数不一致的问题,讨论了现有数值延拓(numerical extending,NE)方法的局限性,提出基于Normative算子的HFS NE方法,在没有新息加入的条件下,依次选取现有HFS隶属度可能值的均值作为一个新的延拓隶属度,直至所有HFS隶属度个数相等为止,并基于有序加权平均(ordered weighted averaging,OWA)算子归纳隶属度统一方法。最后将所提出的方法应用到多传感器电子侦察情报的多属性决策问题中,基于改进的逼近理想解(technique for order preferences by similarity to ideal solution,TOPSIS-ε)法对各信源HFS属性判决进行多属性决策。仿真试验分析了距离、距离参数、属性权重对决策结果的影响,并详细对比和验证了新方法在HFS隶属度NE方面的稳定性和直观性。展开更多
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.
文摘针对传统防空目标威胁评估中威胁因素考虑不全、定性指标量化不精确以及属性指标权重固定不变等方面的不足,在综合考虑目标静态和动态属性的基础上,提出了基于直觉模糊理想解逼近(technique for order preference by similarity to an ideal solution, TOPSIS)法和变权多准则优化妥协决策(multi-criteria optimization compromise decision-making, VIKOR)法的防空目标威胁综合评估方法。首先,直觉模糊集和隶属度函数分别用于静态和动态属性指标的量化。然后,构建直觉模糊TOPSIS模型和融合变权的VIKOR模型进行静态属性和动态属性威胁评估。最后,进行综合威胁度计算。仿真验证表明,目标威胁综合评估方法与仅考虑目标运动状态信息的传统评估方法相比,评估结果更加合理有效,更符合防空作战实际。
文摘为了准确评价防波堤运营期健康状态的等级,建立了基于改进直觉模糊集逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)的防波堤健康状态评价模型。首先,通过最小熵原理对多种组合权重方法进行最优化处理,以改进直觉模糊集TOPSIS法。其次,以安全性、适用性、耐久性3个维度建立防波堤运营期健康状态评价指标体系,该指标体系采用3个定性指标和8个定量指标进行表征。最后,将改进直觉模糊集TOPSIS模型应用到渤海基地港池护岸防波堤运营期健康状态评价中,并与改进前模型计算结果、实际情况进行对比分析。结果表明,改进模型计算结果与实际情况比较一致,优于改进前评价结果,为防波堤运营期健康状态评价提供了一种新的途径。
文摘为解决犹豫模糊集(hesitant fuzzy set,HFS)隶属度数值个数不一致的问题,讨论了现有数值延拓(numerical extending,NE)方法的局限性,提出基于Normative算子的HFS NE方法,在没有新息加入的条件下,依次选取现有HFS隶属度可能值的均值作为一个新的延拓隶属度,直至所有HFS隶属度个数相等为止,并基于有序加权平均(ordered weighted averaging,OWA)算子归纳隶属度统一方法。最后将所提出的方法应用到多传感器电子侦察情报的多属性决策问题中,基于改进的逼近理想解(technique for order preferences by similarity to ideal solution,TOPSIS-ε)法对各信源HFS属性判决进行多属性决策。仿真试验分析了距离、距离参数、属性权重对决策结果的影响,并详细对比和验证了新方法在HFS隶属度NE方面的稳定性和直观性。
