一种基于区间直觉判断矩阵的群决策方法

提出了区间直觉偏好信息的有序加权集成算子和混合集成算子;定义了区间直觉判断矩阵及其得分矩阵和精确矩阵等新概念,详细研究了它们的性质;探讨了区间直觉判断矩阵、直觉判断矩阵以及互补判断矩阵之间的关系;基于算术集成算子和混合集成算子,给出了一种决策者对决策方案的偏好信息为区间直觉判断矩阵的群决策方法;最后,利用实例对方法的有效性进行了说明.     

诱导广义区间值直觉不确定语言混合Shapley算子及在群决策中的应用

本文针对具有区间值直觉不确定语言信息的多属性群决策,定义了两个广义混合累积算子.它们不仅综合考虑了属性自身及序位置的重要性,同时考虑了它们各自间的交互作用.值得一提的是:许多区间值直觉不确定语言累积算子是本文所定义算子的特例.当权重信息不完全已知时,建立了关于专家集、属性集和相应序位置集合上最优模糊测的数学规划模型.基于所定义的算子和建立的数学模型,提出了一种新的区间值直觉不确定语言多属性群决策方法.最后,通过对一个城市图书馆空调系统的评价来说明所给方法的具体应用.     

基于熵最大化的区间直觉模糊多属性群决策方法

针对决策信息为区间直觉模糊数且属性权重完全未知的多属性群决策问题, 提出了一种基于信息熵的决策方法. 为保证决策的完善性, 首先从区间直觉模糊数的几何意义出发, 提出了一种相对合理的比较方法, 同时定义了一种区间直觉模糊矩阵的规范化方法, 并详细论证了方法的相关性质. 该方法不仅能够保证区间直觉模糊数的形式, 而且最大程度的降低了信息损失. 接着, 提出一种基于区间直觉模糊值熵最大化的权重确定方法, 最后, 将该方法应用在ERP选优的群决策问题中, 用一个实例验证了方法的有效性.     

基于直觉模糊优选模型的混合型多属性决策

根据区间值模糊集和直觉模糊集可以互相转化,而且语言变量和标准化后的实数变量也可以用直觉模糊数的形式来表示,将规范化处理后的混合型决策矩阵转化为直觉模糊决策矩阵,并建立了直觉模糊优选模型,从而得出各个方案的直觉模糊评价值。基于直觉模糊点运算引入了一种新的得分函数,对直觉模糊数进行排序。算例结果表明了该决策方法是实用和可行的。     

对方案有偏好的区间直觉模糊多属性决策方法

针对属性权重信息未知或属性权重信息不完全且属性值和对方案的偏好值均为区间直觉模糊数多属性决策问题,基于偏差极小化的思想,给出了相应的决策分析方法。首先引入了区间直觉模糊数的一些运算法则、区间直觉模糊数的得分函数和精确函数。然后分别对权重信息未知或权重信息不完全且属性值和对方案的偏好值均为区间直觉模糊数多属性决策方法进行了研究,给出了基于最小偏差的目标规划模型,从而获得相应的属性权重,基于区间直觉模糊数加权平均(IIFWA)算子对区间直觉模糊信息进行集结,进而根据得分函数和精确函数对方案进行排序。最后,进行了实例分析,说明了该方法的实用性和有效性。     

基于距离的直觉模糊粗糙模型及应用

将直觉模糊和区间直觉模糊集(数)的距离测度引入直觉模糊信息系统和区间直觉模糊信息系统,建立基于距离的粗糙集模型,并给出该模型两种约简-上下近似约简的定义.通过构造分辨函数,设计距离直觉模糊粗糙模型的知识约简及规则提取算法.最后将距离直觉模糊粗糙模型应用于信息系统安全审计风险判断,这不仅可为从直觉模糊和区间直觉模糊信息系统中获取知识提供一种粗糙集方法,而且还为信息系统安全审计风险的有效判断提供决策支持.     

区间直觉模糊多属性群决策自收敛算法

对区间直觉模糊多属性群决策中的一致性问题进行研究,引入了一种可自收敛算法得到一致性群决策矩阵。首先基于区间直觉模糊数的运算法则和集结算子,将单个决策者的决策矩阵集结为群体决策矩阵;然后通过可自收敛算法反复迭代,直到得到满足一致性的群体决策矩阵;最后再次基于区间直觉模糊数的集结算子和排序规则实现方案选优。从理论上论证了该算法的收敛性和保序性,并通过算例验证了算法的可行性和有效性。     

区间直觉纯语言信息的集结方法及其在群决策中的应用

对区间直觉纯语言信息的集结方法进行了研究.定义了区间直觉纯语言集及其运算法则和区间直觉纯语言变量的得分函数和精确函数,给出了一种简单的区间直觉纯语言变量的排序方法.进一步,提出了一些基于区间直觉纯语言信息及其运算法则的信息集结算子.在此基础上,给出了一种专家权重、属性权重及属性值均以语言标度形式给出的区间直觉纯语言信息集结方法,并将此方法应用到多属性群决策中.最后通过实例分析表明了该方法的有效性和可行性.     

基于混合型评价矩阵的多属性群决策方法

本文针对具有语言型、直觉模糊数和区间直觉模糊数三种评价信息的混合型多属性群决策问题, 提出一种基于属性权重和专家权重均未知的决策方法. 首先, 定义新的转换函数, 可将不同粒度的语言评价信息统一成区间直觉模糊数; 然后, 基于支持度确定未知属性权重, 并在综合考虑区间直觉模糊数熵值和相似度的基础上, 建立了一种新的专家权重确定模型; 在将混合型决策矩阵转换成区间直觉模糊决策矩阵后, 利用IIFWA算子依次集结个体决策矩阵, 从而得出方案集的排序. 最后, 应用在ERP选优问题中, 验证了方法的有效性.     

Some interval-valued intuitionistic uncertain linguistic hybrid Shapley operators

Two interval-valued intuitionistic uncertain linguistic hybrid operators cal ed the induced interval-valued intuitionistic uncertain linguistic hybrid Shapley averaging （I-IIULHSA） operator and the induced interval-valued intuitionistic uncertain linguistic hybrid Shapley geometric （I-IIULHSG） operator are defined. These operators not only reflect the importance of elements and their ordered positions, but also consider the correlations among elements and their ordered positions. Since the fuzzy measures are defined on the power set, it makes the problem exponentially complex. In order to simplify the complexity of solving a fuzzy measure, we further define the induced interval-valued intuitionistic uncertain linguistic hybrid λ-Shapley averaging （I-IIULHλSA） operator and the induced interval-valued intuitionistic uncertain linguistic hybrid λ-Shapley geometric （I-IIULHλSG） operator. Moreover, an approach for multi-attribute group decision making under the interval-valued intuitionistic uncertain linguistic environment is developed. Finally, a numerical example is provided to verify the developed procedure and demonstrate its practicality and feasibility.     

Some new similarity measures for intuitionistic fuzzy values and their application in group decision making

We first propose a series of similarity measures for intuitionistic fuzzy values (IFVs) based on the intuitionistic fuzzy operators (Atanassov 1995). The parameters in the proposed similarity measures can control the degree of membership and the degree of non-membership of an IFV, which can reflect the decision maker’s risk preference. Moreover, we can obtain some known similarity measures when some fixed values are assigned to the parameters. Furthermore, we apply the similarity measures to aggregate IFVs and develop some aggregation operators, such as the intuitionistic fuzzy dependent averaging operator and the intuitionistic fuzzy dependent geometric operator, whose prominent characteristic is that the associated weights only depend on the aggregated intuitionistic fuzzy arguments and can relieve the influence of unfair arguments on the aggregated results. Based on these aggregation operators, we develop some group decision making methods, and finally extend our results to interval-valued intuitionistic fuzzy environment.     

Interval-valued intuitionistic fuzzy aggregation operators

The notion of the interval-valued intuitionistic fuzzy set (IVIFS) is a generalization of that of the Atanassov’s intuitionistic fuzzy set. The fundamental characteristic of IVIFS is that the values of its membership function and non-membership function are intervals rather than exact numbers. There are various averaging operators defined for IVIFSs. These operators are not monotone with respect to the total order of IVIFS, which is undesirable. This paper shows how such averaging operators can be represented by using additive generators of the product triangular norm, which simplifies and extends the existing constructions. Moreover, two new aggregation operators based on the ukasiewicz triangular norm are proposed, which are monotone with respect to the total order of IVIFS. Finally, an application of the interval-valued intuitionistic fuzzy weighted averaging operator is given to multiple criteria decision making.     

基于熵和关联系数的区间直觉模糊决策方法

针对决策信息为区间直觉模糊数且属性权重完全未知的多属性决策问题,提出了一种基于熵和关联系数的决策方法。首先,构建了一种新的区间直觉模糊熵,并提出基于该区间直觉模糊熵的属性权重确定方法。然后,提出了考虑属性权重的区间直觉模糊关联系数,进一步基于以上原理给出了解决属性权重完全未知且属性值为区间直觉模糊数的多属性决策问题的决策步骤。最后,依据以上决策步骤,通过算例的计算表明了该方法的简单性与有效性。     

直觉不确定语言集成算子及在群决策中的应用

直觉不确定语言数是直觉模糊数和不确定语言变量值的拓展. 针对直觉不确定语言信息的集成问题, 定义了直觉不确定语言数运算法则和大小比较方法, 提出了直觉不确定语言的加权算术平均算子(IULWAA)、直觉不确定语言的有序加权平均算子(IULOWA)以及直觉不确定语言的混合加权平均算子(IULHA)及这些算子的性质. 在此基础上, 提出一种属性权重确知且属性值以直觉不确定语言数形式给出的多属性群决策方法. 最后通过实例分析证明了该方法的有效性.     

A multi-criteria decision making procedure based on interval-valued intuitionistic fuzzy bonferroni means

Inspired by the idea of Bonferroni mean, in this paper we develop an aggregation technique called the interval-valued intuitionistic fuzzy Bonferroni mean for aggregating interval-valued intuitionistic fuzzy information. We study its properties and discuss its special cases. For the situations where the input arguments have different importance, we then define a weighted interval-valued intuitionistic fuzzy Bonferroni mean, based on which we give a procedure for multi-criteria decision making under interval-valued intuitionistic fuzzy environments.     

直觉模糊偏好信息下的多属性决策途径

研究了属性值为直觉模糊数且决策者对方案有偏好的模糊多属性决策问题.针对方案偏好信息以直觉判断矩阵形式给出且属性权重信息不能确知的情形,定义了加型一致性直觉判断矩阵、积型一致性直觉判断矩阵以及直觉模糊决策矩阵的得分矩阵等新概念.基于得分矩阵和直觉判断矩阵,分别利用两种转换函数建立一些简洁的线性规划模型.通过求解这些模型获得属性的权重,进而给出了一种基于直觉模糊偏好信息的多属性决策途径.最后通过实例对该决策途径的详细过程及有效性进行了说明.     

直觉正态模糊优先集结算子及其在群决策中的应用

直觉正态模糊数是对直觉模糊数和正态模糊数的拓展.针对直觉正态模糊信息的集成问题,定义了直觉正态模糊数的运算法则、期望值和大小比较方法,提出了准则间具有优先关系的直觉正态模糊优先加权平均算子(INFPWA)、直觉正态模糊优先加权几何平均算子(INFPWG)、直觉正态模糊有序加权平均算子(INFPOWA)及这些算子的性质.在此基础上,针对专家和准则间具有优先关系并且准则值为直觉正态模糊数的多准则决策问题,提出一种基于直觉正态模糊优先集结算子的群决策方法.最后通过算例分析验证了该方法的有效性和可行性.     

Entropy-based procedures for intuitionistic fuzzy multiple attribute decision making

The class of multiple attribute decision making (MADM) problems is studied, where the attribute values are intuitionistic fuzzy numbers, and the information about attribute weights is completely unknown. A score function is first used to calculate the score of each attribute value and a score matrix is constructed, and then it is transformed into a normalized score matrix. Based on the normalized score matrix, an entropy-based procedure is proposed to derive attribute weights. Furthermore, the additive weighted averaging operator is utilized to fuse all the normalized scores into the overall scores of alternatives, by which the ranking of all the given alternatives is obtained. This paper is concluded by extending the above results to interval-valued intuitionistic fuzzy set theory, and an illustrative example is also provided.     

Intuitionistic fuzzy hierarchical clustering algorithms

Intuitionistic fuzzy set (IFS) is a set of 2-tuple arguments, each of which is characterized by a mem-bership degree and a nonmembership degree. The generalized form of IFS is interval-valued intuitionistic fuzzy set (IVIFS), whose components are intervals rather than exact numbers. IFSs and IVIFSs have been found to be very useful to describe vagueness and uncertainty. However, it seems that little attention has been focused on the clus-tering analysis of IFSs and IVIFSs. An intuitionistic fuzzy hierarchical algorithm is introduced for clustering IFSs, which is based on the traditional hierarchical clustering procedure, the intuitionistic fuzzy aggregation operator, and the basic distance measures between IFSs: the Hamming distance, normalized Hamming, weighted Hamming, the Euclidean distance, the normalized Euclidean distance, and the weighted Euclidean distance. Subsequently, the algorithm is extended for clustering IVIFSs. Finally the algorithm and its extended form are applied to the classifications of building materials and enterprises respectively.     

有人机/UCAV编队协同作战决策分配方法

针对有人机/UCAV(unmanned combat aerial vehicle)编队协同作战决策分配过程中属性值和专家建议的不确定性,采用区间直觉模糊多属性决策(interval-valued intuitionistic fuzzy multiple attribute decision-making,IVIFMADM)方法,综合处理不确定数值.首先,对专家域中专家建议矩阵进行一致性检验,并进行收敛迭代生成群体决策矩阵;其次,采用熵权法求得各属性值权重大小,赋予高熵值属性以较大权重;然后,基于改进灰色关联分析,并与属性权值进行信息集结得到属性值与各决策等级间的相似度,确定最终决策等级;最后,通过实例验证了IVIFMADM方法应用于有人机/UCAV编队协同作战决策分配的有效性和稳定性.