共查询到20条相似文献,搜索用时 78 毫秒
1.
《Expert systems with applications》2014,41(7):3297-3305
The fuzzy analytic hierarchy process (FAHP) has been used to solve various multi-criteria decision-making problems where trapezoidal type-1 fuzzy sets are utilized in defining decision-makers’ linguistic judgment. Previous theories have suggested that interval type-2 fuzzy sets (IT2 FS) can offer an alternative that can handle vagueness and uncertainty. This paper proposes a new FAHP characterized by IT2 FS for linguistic variables. Differently from the typical FAHP, which directly utilizes trapezoidal type-1 fuzzy numbers, this method introduces IT2 FS to enhance judgment in the fuzzy decision-making environment. This new model includes linguistic variables in IT2 FS and a rank value method for normalizing upper and lower memberships of IT2 FS. The proposed model is illustrated by a numerical example of work safety evaluation. Comparable results are also presented to check the feasibility of the proposed method. It is shown that the ranking order of the proposed method is consistent with the other two methods despite difference in weight priorities. 相似文献
2.
把信息技术项目当作组合来管理可以通过平衡风险和收益来促进企业目标和IT应用的结合,但由于决策信息的不确定性和IT项目目标与企业战略的难以对应,企业面临IT项目组合选择的挑战。构建基于战略对应的IT项目组合选择模型,其中模糊集和模糊层次分析法用来刻画不确定信息和评估IT项目风险、成本及收益,关键成功因素法用来提高IT项目与企业战略的对应,并建立模糊0-1整数规划。利用定性可能性理论把模糊组合选择模型转化为一般可求解的整数规划形式,最后用一个案例说明模型的用法。 相似文献
3.
4.
Sujit Singh Ezutah Udoncy Olugu Siti Nurmaya Musa Abu Bakar Mahat 《Journal of Intelligent Manufacturing》2018,29(1):1-18
Sustainability has become a necessity, partly due to the threats created by traditional manufacturing practices, and due to regulations imposed by stakeholders. Performance evaluation is an important component of sustainability initiatives in manufacturing organizations. This study proposes a sustainability evaluation method for manufacturing SMEs using integrated fuzzy analytical hierarchal process (FAHP) and fuzzy inference system (FIS) approach. The performance indicators are identified from literature considering the characteristics of SMEs. Balanced scorecard framework is used to categorize the indicators among its four aspects. The linguistic variables are used to collect the opinions of decision makers about the performance ratings and importance of the aspects and corresponding indicators. The FAHP method is applied to determine the relative weights of measures and indicators. The performance ratings of the organization with respect to indicators and relative weights of indicators are combined to obtain the weighted performance ratings. The weighted performance ratings are considered as inputs to FIS. The hierarchal FIS is applied to derive the overall sustainability performance. Using a case study of manufacturing SME, the sustainability score of the organization was elicited in accordance with this procedure. Consequently, a sensitivity analysis of the proposed method reveals the most important basic indicators affecting overall sustainability, identifying areas which decision makers should place special attention. This method can also assist managers of larger enterprises to assess the effectiveness of their sustainability strategies, especially when dealing with suppliers from the SMEs. 相似文献
5.
基于层次结构的信息安全评估模型研究 总被引:20,自引:3,他引:20
论文提出了一种包含管理因素在内的模糊风险评估模型。采用了ISO17799国际标准作为风险的分类标准,以多层分析的模糊逻辑为模型,同时考虑到安全因素间的相互影响,引入了关系矩阵,实现了安全评估综合决策。通过使用三层结构将复杂关系分解为由局部简单关系构成的递增层次结构关系,同时,考虑到评判打分的主观性,制定了七种评判准则及其到评判集元素间的映射关系,增加了评判的客观性。总之,所提出的模糊风险评估模型是有效而实用的。 相似文献
6.
一种灰色模糊油田区块水驱指标评价模型 总被引:1,自引:0,他引:1
针对油田开发中的不确定因素,结合油藏开发因素中的定性化指标,提出了一种基于油田开发水驱指标的模糊综合评价模型.通过灰色关联法定量筛选影响油田开发水驱因素的九项指标,运用层次分析法确定了各指标的权重,结合模糊数学中的判断矩阵实现了油田各区块的模糊综合评价.此方法不仅可以对所有区块进行总体评价,还能对各个具体区块进行精细的评价,为油田开发与管理提供了有效的指导.最后,通过实际例子验证了模型的有效性以及可行性. 相似文献
7.
As the number of new products developed by new technologies has increased, the importance of the commercialization of new technology products has become crucial to manufactures in the successful delivery of valuable new products and services. This study classified success factors for commercialization of new products and analyzed which factors should be primarily considered. Based on the literature review and Delphi method, we identified four decision areas and further prioritized the sixteen factors under a hierarchy model structured by fuzzy AHP (analytic hierarchy process) approach. The FAHP is conducted by 111 R&D and business experts working at the world’s major players in machinery industry; using the priorities of success factors derived by FAHP, we devise an example of commercialization assessment model. The paper drives the assessment initiatives of the new product development in manufactures and provides them with practical implications about the commercialization of new technology product. 相似文献
8.
儿童滑板车设计评价的影响因素复杂多样,难以通过量化的方法衡量这些因素对于产品设计的
重要性。采用模糊德尔菲法(FDM)定量地筛选产品设计评价指标要素,建立儿童滑板车设计层级指标模型。
然后,运用模糊层次分析法(FAHP)计算出各项指标要素权重,综合评价设计方案,得出儿童滑板车总体评价
分值,最终提出优化与改良意见。FDM 与 FAHP 结合可以较为系统地对产品进行量化设计与评价,减少设
计过程中的主观因素,使设计更加科学、理性与严谨,也为儿童产品设计方案的选择和优化提供了可量化的
参考依据。 相似文献
9.
针对电力监控系统风险评估中存在的系统建模不完整、专家评价意见的模糊性和缺乏对系统整体风险的考虑的问题, 提出了基于云模型和改进证据理论的电力监控系统风险评估方法. 首先根据电力监控系统的结构和安全需求, 对电力监控系统的设备、安全目标和威胁进行分析, 建立系统整体风险评估模型; 然后结合FAHP和修正的熵权法, 使用最优化组合赋权的方法得到各元素的权重; 最后利用云模型和改进证据理论完成对电力监控系统的综合风险评估, 得到系统的风险等级. 仿真实验证明了该方法的适用性和有效性, 为电力监控系统的安全管理工作提供了新的思路. 相似文献
10.
基于FAHP和FMCDM构建软件可信性评估模型* 总被引:1,自引:0,他引:1
结合软件可信性评估的特点及模糊理论的最新进展,提出一种基于模糊层次分析法和模糊多指标决策理论的评估模型。首先针对软件可信性没有一致定义的现状,提出了相对可信性的概念;接着基于模糊数理论,用三角模糊数表示专家评估中语言变量的主观性和模糊性,结合专家给出的模糊指标权重及待评软件可信等级的模糊评价,得到软件可信性的集成模糊评价;最后,将该模型应用到国内某汽车制造企业整车产品开发项目管理软件评估中,实例说明软件可信性评估的具体过程,结果验证了该模型的实效性。 相似文献
11.
12.
为合理地确定用户需求偏好及其优先程度以适应大规模定制生产模式,最大限度
提升用户满意度,提出一种改进的产品用户需求配置方法。将模糊聚类分析方法融入Kano 模
型中对用户需求进行归属分类,根据用户需求对满意度提升的贡献程度进行筛选,计算需求
满意度及重要度评价因子,建立产品用户需求递阶层次结构模型。在模糊层次分析法(FAHP)
中通过采用模糊最优最劣法(FBWM)构造一致性三角模糊数互补判断矩阵,引入可能度概念实
现去模糊化,得到用户需求初始权重,并将需求评价因子作为初始权重的修正因子,将修正
后的权重进行归一化处理,得到用户需求综合权重,以此为依据实现产品需求配置。以某企
业眼镜产品设计开发为例,验证了该方法的有效性,为眼镜及其他产品设计开发提供了用户
需求配置策略。 相似文献
13.
文章针对信息系统风险评估易受主观因素的影响,存在模糊性和不确定性等问题,提出了一个新的风险评估模型。通过建立基于等级保护的层次化评估体系,并运用基于层次分析法的评估方法处理评估中存在的模糊值,最终量化评估结果。实证结果表明,该模型能够减小风险评估中的模糊性和不确定性,可以较好地解决信息系统风险评估的实际困难和问题。 相似文献
14.
对已有的安全态势评估方法进行了详细分析和比较,针对现有态势评估方法中存在的主观随机性,结合信息系统规模庞大、结构复杂、信息交互频繁等问题,依据层次分析法AHP基本原理建立了信息系统安全态势评估指标体系。针对现有的模糊层次分析法FAHP存在的一致性问题,提出了新的一致性修正算法并将其应用到了安全态势评估中。另外,吸收了模糊综合评价方法 FCE计算态势值的技术,建立了一种新的安全态势评估模型—层次分析法-改进的模糊层次法-模糊综合评价法模型(AHP-IFAHP-FCE)。介绍了该模型的组成原理,给出了具体构成方法,描述了各个步骤的主要任务。实验结果表明,在信息系统安全态势评估方面,该模型比已有的模型更加有效、更加准确。 相似文献
15.
Risk analysis of swell and shrinkage is essential to properly evaluate engineering stability and safety of expansive soils. Herein a novel model for risk analysis of swell and shrinkage of expansive soils was proposed by means of coupling set pair analysis with stochastic simulation of triangular fuzzy numbers. A concept of multi-element connection number for a set pair, which consisted of measured evaluation index sets and classification standard sets of shrink and expansion grade, was described to express hierarchy and fuzziness of membership between the evaluation sample and the classification standard. Moreover, triangular fuzzy numbers simulated by the stochastic simulation method were presented to depict the changing process and fuzziness of component coefficients of discrepancy degree. Combined with the weight of the evaluation index, integrated connection number was calculated to specify the swell and shrinkage grade of the evaluation sample. A confidence level of evaluation result was also given corresponding to a confidence interval. Finally, a practical example was used to confirm and to compare with the fuzzy mathematic method and extension method. The results show that this presented method is more feasible and easy to operate, and the result is good. It can provide a reliable degree of evaluation results for risk design and risk management of projects on expansive soils. 相似文献
16.
可适应性企业级整体 IT成熟度模型及其评价 总被引:1,自引:1,他引:0
目前部分企业计划或已经采用不同的成熟度模型和指标对其 IT成熟度进行评估 ,如 IT服务成熟度、软件成熟度、信息风险成熟度等方法 ,但无有效的方法对整体 IT成熟度进行评估。基于 SEI开发的能力成熟度框架( CMM)提出可适应性整体 IT成熟度模型 ( adaptive total IT maturity model / ATITMM/ @ ITMM, @ ITMM)的概念,并建立可适应性的企业级通用 IT成熟度模型 ;运用一种合适的通用评估纬度反映企业整体 IT状况 ,同时采用模糊综合评价法对整体 I 相似文献
17.
18.
提取有效的雷达辐射源信号特征是复杂体制下雷达辐射源信号识别的重要基础。为实现对复杂体制雷达辐射源信号特征的评价,提出了复杂体制雷达辐射源信号特征的模糊层次分析评价模型。该模型在构建复杂体制雷达辐射源信号特征评价指标体系的基础上,针对层次分析法在权重确定方面存在的不足,通过引入三角模糊数来刻画专家评判的模糊性,将该模型应用于雷达辐射源信号特征评价的算例分析,并将计算结果与标准层次分析法的分析计算结果进行了对比,结果表明该模型的计算结果与标准层次分析法的计算结果是一致的,从而证明了该模型的可行性和有效性。 相似文献
19.
为提高多关节主被动训练仪的可用性水平,以用户体验理论为基础构建了以用户为触点的多关
节主被动训练仪可用性评价指标体系,运用模糊层次分析法(FAHP)和隶属度定量化处理的方法构建多关节主被
动训练仪可用性评价模型。以某公司生产的一款多关节主被动训练仪为例,先由专家测评确定评价指标并计算
出各指标因素的权重值,再由评分小组操作该产品后得出对每项可用性评价指标的评价等级,结合多关节主被
动训练仪可用性评价模型计算得出最终的评价结果。结果表明,运用该模型能对产品的可用性进行全面准确的
评价,进而发现产品存在的可用性问题,提出改进意见,为产品的升级创新提供参考。 相似文献
20.