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.     

区间直觉模糊事件概率及其泛化形式的研究

针对随机现象中存在的模糊性,给出了区间直觉模糊集（interval-valued intuitionistic fuzzy sets, IVIFS）的解决方案。首先,定义了样本空间中区间直觉模糊事件（interval-valued intuitionistic fuzzy events, IVIFE）的概念,给出了区间直觉模糊事件概率的描述化定义。其次,定义了区间直觉模糊三角模及三角余模的概念,给出了区间直觉模糊事件概率的公理化定义。再次,给出了区间直觉模糊概率的泛化形式,即可分形式和不可分形式,并详细证明了不可分形式。最后,通过实例验证了不可分形式。     

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.     

基于直觉模糊聚类的目标识别

空中目标的正确识别对防空作战具有重要的意义。针对目标识别的特点,提出了基于直觉模糊聚类的识别方法。首先,给出了直觉模糊相似度和相异度的度量方法,并利用目标特征信息计算直觉模糊相似度和相异度。然后,在分析了现有的几种直觉模糊相似矩阵构造方法的基础上,提出了一种新的直觉模糊相似矩阵的构造方法,并给出了直觉模糊相似矩阵转化为直觉模糊等价矩阵的途径;此外,定义了直觉模糊等价矩阵的（α,β）截矩阵,进而实现直觉模糊集的聚类。最后,运用该方法对给定特征的空中目标进行了聚类分析,实验结果表明,提出的方法是可行、有效的。     

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.     

区间直觉模糊统计判决与决策

针对统计判决与决策中存在的模糊性, 给出了模糊性区间直觉模糊集的描述方法. 首先, 给出了区间直觉模糊事件概率的概念; 其次, 在定义区间直觉模糊$t$模及$s$ 模的基础之上, 给出了区间直觉模糊事件概率所满足的基本性质, 证明了区间直觉模糊乘法定理、全概率公式和贝叶斯公式; 再次, 根据给出的区间直觉模糊概率的性质, 依据信息源类型的不同, 详细分析区间直觉模糊统计判决与决策的方法; 最后, 验证了该方法的有效性.     

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.     

广义区间值直觉模糊数及其在工位评估中的应用

直觉模糊数及其在模糊多属性决策问题中的应用吸引了众多学者的注意, 而将直觉模糊数进一步拓展为 广义直觉模糊数也有一些文章涉及. 然而, 基于区间值直觉模糊数的延伸却较少有文献研究, 本文结合广义 直觉模糊数与区间值模糊数的定义、性质, 提出了广义区间值直觉模糊数的概念. 为服务于模糊多属性决策问题, 进一步引入了基于广义区间值直觉模糊数的加、减和数乘运算规则, 并证明了其在定义域上具有封闭性. 由此给 出针对广义区间值直觉模糊数的三条排序准则. 最后将广义区间值直觉模糊数的概念应用于生产线人工工位的 绩效评估案例中, 从而验证了本文提出方法的有效性和实用性.     

基于目标函数的直觉模糊集合数据的聚类方法

针对直觉模糊集合数据的聚类问题,提出了一种基于目标函数的聚类方法。该方法定义了直觉模糊集合间的加权相似性准则,解决了数据聚类过程中各维特征分配不均匀的问题。通过增加非隶属度参数对模糊c〖CD*2〗均值(fuzzy c means, FCM)聚类算法中的模糊划分矩阵〖WTHX〗U〖WTBZ〗和目标函数进行改造,进而给出迭代推导公式和算法描述,把聚类归结为一个带约束的线性规划问题,适用于大数据量的情况。最后通过典型实例验证了该方法的有效性和优越性。     

Aggregation and decision making using intuitionistic multiplicative triangular fuzzy information

The intuitionistic triangular fuzzy set is a generalization of the intuitionistic fuzzy set. In practical applications, we find that the results derived by using the traditional intuitionistic triangular fuzzy aggregation operators based on intuitionistic triangular fuzzy sets are sometimes inconsistent with intuition. To overcome this issue, based on the [1/9, 9] scale, we define the concepts of intuitionistic multiplicative triangular fuzzy set and intuitionistic multiplicative triangular fuzzy number, and then we discuss their operational laws and some desirable properties. Based on the operational laws, we develop a series of aggregation operators for intuitionistic multiplicative triangular fuzzy information, and then apply them to propose an approach to multi-attribute decision making under intuitionistic fuzzy environments. Finally, we use a practical example involving the evaluation of investment alternatives of an investment company to demonstrate our aggregation operators and decision making approach.     

基于调整成本的三阶段区间直觉模糊型多准则群体共识改进模型

群体共识度是实现高效群决策的重要指标,较高群体共识的实现是一个多阶段多约束的动态决策过程.本文提出了高水平群体共识的构建包含群体信息集结、调整元素识别和元素调整步长设计3个阶段,并以相似度作为群体共识度刻画指标贯穿于3个阶段.首先,以相似度为诱导变量进行区间直觉模糊型群体信息集结;其次,基于统计假设检验思想和相似度近似...     

基于调整成本的三阶段区间直觉模糊型多准则群体共识改进模型

群体共识度是实现高效群决策的重要指标,较高群体共识的实现是一个多阶段多约束的动态决策过程。本文提出了高水平群体共识的构建包含群体信息集结、调整元素识别和元素调整步长设计3个阶段,并以相似度作为群体共识度刻画指标贯穿于3个阶段。首先,以相似度为诱导变量进行区间直觉模糊型群体信息集结;其次,基于统计假设检验思想和相似度近似正态分布的构想,识别需要调整的元素集合(决策方案在特定准则下的评估值和决策者);再次,以最小化调整成本为决策目标,以共识度阈值、个体相似度保序、最小调整量、区间直觉模糊评价值特征为约束条件,构建共识度改进优化决策模型;最后,通过比较分析凸显本文算法的可行性和优越性。     

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.     

多目标模糊决策的Vague集方法

对模糊条件下的多目标决策问题,采用Vague集方法进行处理,提出三种目标选择方法:记分函数法、加权记分函数法和距离法.对已有的Vague集方法进行了分析与联系,并通过例子阐明本文方法的有效性和优越性.     

Vague 值与Vague 集上的贴近度

基于“投票模型”,给出一个一般的贴近度表达式,该表达式把Chen的公式、Hong和Kim的公式、李和徐的公式作为特例.基于这个一般表达式,定义了一些新的贴近度公式并讨论了这些公式具有的性质,为更好的应用这些公式奠定了必要的基础.     

共识驱动的区间直觉模糊型多准则群体决策信息融合模型

区间直觉模糊型多准则群体决策集结结果的可靠性是实现群体共识的基础,既体现了群体集结结果的有效性也影响了个体意见的调整行为。首先,分析了现有8种集结算子,以个体平均一致性为诱导变量设计群体意见集结模型。其次,为提高群体集结结果的可靠性,基于各决策方案在各准则下的群体平均一致性,以统计检验为手段设计调整阈值,并以相似度最优为约束设计群体集结结果调整优化模型。最后,通过举例实例说明了该方法的适用性,通过对比分析体现了该方法在实现群体共识方面的优越性。     

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.