基于二型直觉三角前景T2ITFNHA算子的多准则群决策方法

在二型直觉模糊集与直觉三角模糊数的基础上,定义了二型直觉三角模糊数及其运算法则,给出基于二型直觉三角模糊数的加权算术平均(WAA)算子,有序加权平均(OWA)算子和混合集结(HA)算子.考虑决策者有限理性决策行为下的异化风险态度与敏感性,定义二型直觉三角模糊前景效应与前景价值函数,构造前景T2ITFNHA算子.针对多方参与决策且决策者权重确定,准则权重未知的多准则群决策问题,采用正态分布赋权法计算前景T2ITFNHA算子指标置换下的位置权重,提出基于二型直觉三角前景T2ITFNHA算子的决策方法.该方法利用前景T2ITFNHA算子集结群体准则的二型直觉三角前景价值函数,运用灰色系统理论确定准则权重,并通过计算前景集对记分函数对方案进行对比和排序.最后,案例分析说明了二型直觉三角模糊数的实际应用背景及所提高的决策方法的有效性和可行性.     

质量链风险的三角模糊数矩阵分层分析方法

剖析质量链结构且阐述各结构要素的意义,提出质量链风险指标体系及风险等级的三角模糊数划分方法,在专家评定节点风险的三角模糊数矩阵的基础上,设定专家权重、指标权重、企业权重,采用逐次矩阵乘法的方法最终得出质量链风险的三角模糊数数值.对某一纺织机械厂,对3个上游企业和2个下游企业组成的质量链进行风险评价,得出(0.301,0.347,0.386)的结论.     

基于DHF算法的装甲车辆动力装置综合评价

针对装甲车辆动力装置的综合评价问题,给出由Delphi法、层次分析法(AHP)和模糊评判法集合而成的DHF算法.首先根据AHP法建立评价对象的层次结构模型,然后结合模糊决策理论,将模糊数融入到AHP法中来表示各位专家所作的评价,使在评价中的主观判断更符合人们的思维习惯和表达方式,其次结合对备选方案等级的满意度评价和准则层的模糊权重得到备选方案的综合评价模糊数,最后用Lee和Li提出的模糊均值法对备选方案进行排序,得到装甲车辆动力装置的综合评价,结果表明该方法是有效的.     

不确定多属性决策中的一种模糊赋权方法

研究了以三角模糊数给出属性权重的不确定多属性决策问题,提出了一种基于三角模糊数的赋权方法,并给出了决策模型.首先决策者将属性权重两两比较的结果用三角模糊数表示,构造三角模糊数互补判断矩阵.通过求解矩阵得到模糊权重.然后,集结各方案的模糊综合属性值,通过构造并求解可能度矩阵对方案进行排序.最后给出了一个应用实例.     

一种新的模糊TOPSIS决策方法

TOPSIS方法是多准则决策中常用的一种方法.但是该方法无法有效处理决策中的模糊信息,本文提出了一种模糊环境下的TOPSIS方法.在用三角模糊数对语言变量表示的基础上,决策过程中的各个准则的权重和各个备选方案的等级均采用语言变量来描述,这些语言变量由专家确定.为降低决策中的计算量,引入了模糊数的等级均值积分表示,在决策过程中将模糊数计算转化为简单的实数运算.这一优点使得决策中可以避免求解模糊数之间的距离和对模糊数排序.利用一个多准则决策的算例验证了该方法的有效性.     

基于ELECTRE-IN方法的装备战场威胁评估

针对ELECTRE法处理不确定的模糊信息能力弱的缺点,将ELECTRE-IN法拓展到了模糊环境下,用来进行装备战场的威胁评估,决策评估中涉及到的属性值与属性权重值等模糊信息以三角模糊数形式给出.首先根据三角模糊数互补判断矩阵完全一致性的概念,通过建立一个多层次非线性规划,求解出三角模糊数型的属性权重向量;其次集结决策者对各方案属性的评价,确定出模糊决策矩阵;最后按照模糊ELECTRE-IN方法的步骤进行威胁评估,得到决策方案的排序.     

一种对方案有偏好的三角模糊数多属性决策方法

研究了属性权重不能完全确知,方案属性值和偏好值均为三角模糊数的多属性决策问题.通过分析相关文献中利用方案属性值与偏好值之间的偏差求出属性权重的不合理性,在最小化方案综合属性值与偏好值偏差的基础上,建立并求解一个规划模型而得到属性权重.然后,利用三角模糊数的可能度公式及互补判断矩阵的排序公式,获得决策方案的排序,从而得到对方案有偏好的一种三角模糊数多属性决策方法.最后,通过计算实例说明了该方法.     

三角直觉模糊数型VIKOR方法

针对备选方案的属性值为三角直觉模糊数且权重为实数的多属性决策问题,研究了三角直觉模糊数型VIKOR方法。首先,本文提出了一种基于偏好指标的三角直觉模糊数排序方法;其次,根据VIKOR方法的基本思想,提出了求解三角直觉模糊数型VIKOR方法的步骤,并在可接受优势和决策过程的稳定条件下对备选方案进行排序,得到折衷解;最后,在最大群体效用权重为0.5的情况下,用第三方物流服务商选择为例说明了该方法的有效性和可行性。     

基于模糊数对高新技术企业决策风险的影响因素排序

针对高新技术企业决策风险的特点,结合高新技术企业决策风险体系的构成要素,基于模糊数对决策风险的影响因素两茂比较,建立三角模糊数互补判断矩阵,最后转化为模糊互补一致矩阵,得到决策风险影响因素指标的权重值,并对决策风险的影响因素进行排序,为高新技术企业决策者降低决策风险提供理论依据.     

基于三角模糊层次分析法的农产品滞销风险等级决策评价

为了有效预警和弱化农产品滞销事件危害,提出农产品滞销风险等级评估方法.首先,搜集近3年来发生的农产品滞销较大事件209起,分析确定农产品滞销风险等级评价指标体系.其次,考虑到决策过程的复杂性和不确定,提出三角模糊数的层次分析法确定评价指标权重.将农产品滞销风险划分为五个等级,构建各等级的标准模糊状态向量,利用模糊模式识别法计算农产品与等级标准模糊状态向量之间的贴近度.然后,基于权重和贴进度建立农产品滞销风险等级决策模型.最后,实例和对比分析研究验证了基于三角模糊数的层次分析法和模糊模式识别的农产品滞销风险等级评估模型的有效性和可行性.     

Modeling subjective evaluation for fuzzy group multicriteria decision making

This paper presents a new fuzzy multicriteria decision making (MCDM) approach for evaluating decision alternatives involving subjective judgements made by a group of decision makers. A pairwise comparison process is used to help individual decision makers make comparative judgements, and a linguistic rating method is used for making absolute judgements. A hierarchical weighting method is developed to assess the weights of a large number of evaluation criteria by pairwise comparisons. To reflect the inherent imprecision of subjective judgements, individual assessments are aggregated as a group assessment using triangular fuzzy numbers. To obtain a cardinal preference value for each decision alternative, a new fuzzy MCDM algorithm is developed by extending the concept of the degree of optimality to incorporate criteria weights in the distance measurement. An empirical study of aircraft selection is presented to illustrate the effectiveness of the approach.     

基于TOPSIS的模糊群体多属性决策方法

针对模糊群体多属性决策问题,给出一种基于理想点法(TOPSIS)的多属性决策方法.方法先用三角模糊数的形式表示专家评价值的模糊性和不确定性,而后考虑了专家在不同评价属性中的重要程度和意见的相似度,并将专家意见进行集结得到专家群体关于方案集的模糊决策矩阵,最后定义了三角模糊数形式的正负理想方案,通过计算各方案与正负理想方案的距离以及各方案与理想点的相对接近度,最终确定最优方案.通过实例分析说明了该方法的可行性和有效性.     

Group decision making based on novel fuzzy modified TOPSIS method

The aim of this paper is to present a novel fuzzy modified technique of order preference by a similarity to ideal solution (TOPSIS) method by a group of experts, which can select the best alternative by considering both conflicting quantitative and qualitative evaluation criteria in real-life applications. The proposed method satisfies the condition of being the closest to the fuzzy positive ideal solution and also being the farthest from the fuzzy negative ideal solution with multi-judges and multi-criteria. The performance rating values of alternatives versus conflicting criteria as well as the weights of criteria are described by linguistic variables and are transformed into triangular fuzzy numbers. Then a new collective index is introduced to discriminate among alternatives in the evaluation process with respect to subjective judgment and objective information. This paper shows that the proposed fuzzy modified TOPSIS method is a suitable decision making tool for the manufacturing decisions with two examples for the robot selection and rapid prototyping process selection.     

基于区间值直觉模糊不确定语言变量的灰色关联度分析方法

给出了区间值直觉模糊不确定语言环境下的灰色关联度分析方法。首先确定了区间值直觉模糊不确定语言正负理想解, 然后计算每个评价值与正负理想解的灰色关联度, 利用属性的权重向量, 计算方案与正负理想解的灰色关联度, 最后计算出方案的相对关联度, 并根据方案的相对关联度对方案进行排序。如果属性权重部分可知, 则需要根据与正理想解有最大的灰色关联度而与负理想解有最小的关联度的原则建立数学规划确定属性的权重。最后, 为了说明算法的可行性和有效性, 将其应用到房地产开发项目的风险评价上。 实例说明了算法的可行性和有效性。     

Multicriteria fuzzy decision-making method using entropy weights-based correlation coefficients of interval-valued intuitionistic fuzzy sets

A multicriteria fuzzy decision-making method based on weighted correlation coefficients using entropy weights is proposed under interval-valued intuitionistic fuzzy environment for the some situations where the information about criteria weights for alternatives is completely unknown. To determine the entropy weights with respect to a decision matrix provided as interval-valued intuitionistic fuzzy sets (IVIFSs), we propose two entropy measures for IVIFSs and establish an entropy weight model, which can be used to determine the criteria weights on alternatives, and then propose an evaluation formula of weighted correlation coefficient between an alternative and the ideal alternative. The alternatives can be ranked and the most desirable one(s) can be selected according to the values of the weighted correlation coefficients. Finally, two applied examples demonstrate the applicability and benefit of the proposed method: it is capable for handling the multicriteria fuzzy decision-making problems with completely unknown weights for criteria.     

基于不完全权重信息下模糊多属性决策的供应链合作伙伴选择

针对属性权重完全未知或只有部分权重信息且属性值为三角模糊数的供应链合作伙伴选择问题,给出了一种模糊多属性决策方法.提出了一种基于置信度的定性指标的量化方法,通过求解最优化决策模型确定属性的权重,然后根据各方案到模糊理想点的相对贴近度的大小选择最优的合作伙伴.     

基于模糊信息公理与云模型的虚拟企业合作伙伴选择

针对虚拟企业建立过程中的关键问题——合作伙伴选择,本文以合作需求为驱动,建立了一种基于模糊信息公理与云模型的合作伙伴选择方法。利用质量功能展开法将合作需求转化为决策属性及其重要度,采用模糊三角数处理展开过程中的不确定信息,并以相对偏好关系计算属性相对重要度。运用信息公理计算各候选企业的信息量,再以各候选企业信息量作为云滴,利用逆向云生成器求得评价结果的云数字特征,通过云数字特征将其转换为定性评价,并进一步分析评价结果。最后,通过实例分析验证了该方法的可行性和有效性。     

A method of fuzzy preference relation to authorize the worldwide interoperability for microwave access license in Taiwan

This study proposes a preference relation based evaluation framework to help the National Communication Commission (NCC) in Taiwan authorize a worldwide interoperability for microwave access (WiMAX) license under a fuzzy environment where the uncertainty, subjectivity and vagueness are dealt with linguistic variables parameterized by triangular fuzzy numbers. This study applies the fuzzy multi-criteria decision making approach to determine the importance weights of evaluation criteria and consolidate the performance ratings of possible alternatives. Aggregated the evaluators’ opinions toward the criteria and alternatives, the fuzzy preference relation approach is utilized to obtain the non-dominated degree of each alternative for the decision makers to make a final decision. Simultaneously, an empirical case involving sixteen quantitative and fifteen qualitative evaluation criteria, thirteen telecommunication applicants assessed by twelve specialists from various fields of telecommunication industry in Taiwan is solicited to demonstrate the proposed approach.     

Fuzzy decision-making method based on the weighted correlation coefficient under intuitionistic fuzzy environment

A multicriteria fuzzy decision-making method based on weighted correlation coefficients using entropy weights is proposed under intuitionistic fuzzy environment for some situations where the information about criteria weights for alternatives is completely unknown. To determine the entropy weights with respect to a set of criteria represented by intuitionistic fuzzy sets (IFSs), we establish an entropy weight model, which can be used to get the criteria weights, and then propose an evaluation formula of weighted correlation coefficient between an alternative and the ideal alternative. The alternatives can be ranked and the most desirable one(s) can be selected according to the weighted correlation coefficients. Finally, two illustrative examples demonstrate the practicality and effectiveness of the proposed method.     

动态联盟绩效评价的Fuzzy统计模型研究

针对企业动态联盟的绩效指标,利用模糊隶属度理论将绩效的定性评价转化为定量评价,将专家经验与数学模型结合起来确定各指标的权重,建立了企业动态联盟绩效评价的Fuzzy统计模型,并编出模型的计算机程序和软件,实现了评价的计算机操作.