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| 1 | 基于属性权重的Fuzzy C Mean算法显示文摘提出CF-WFCM算法,该算法分为属性权重学习算法和聚类算法两部分.属性权重学习算法,从数据自身的相似性出发,通过梯度递减算法极小化属性评价函数CFuzziness(w),为每个属性赋予一个权重.将属性权重应用于Fuzzy C Mean聚类算法,得到CF-WFCM算法的聚类算法.CF-WFCM算法强化重要属性在聚类过程中的作用,消减冗余属性的作用,从而改善聚类的效果.我们选取了部分UCI数据库进行实验,实验结果证明:CF-WFCM算法的聚类结果优于FCM算法的聚类结果.函数CFuzziness(w)不仅可以评价属性的重要性,而且可以评价属性评价函数的优劣.实验说明了这一问题.最后我们对CF-WFCM算法进行了讨论. | 王丽娟 关守义 王晓龙 王熙照 | 2006 | 计算机学报2006,29,10: | 45 |
| 2 | Autonomous air combat maneuver decision using Bayesian inference and moving horizon optimization显示文摘To reach a higher level of autonomy for unmanned combat aerial vehicle(UCAV) in air combat games, this paper builds an autonomous maneuver decision system. In this system,the air combat game is regarded as a Markov process, so that the air combat situation can be effectively calculated via Bayesian inference theory. According to the situation assessment result,adaptively adjusts the weights of maneuver decision factors, which makes the objective function more reasonable and ensures the superiority situation for UCAV. As the air combat game is characterized by highly dynamic and a significant amount of uncertainty,to enhance the robustness and effectiveness of maneuver decision results, fuzzy logic is used to build the functions of four maneuver decision factors. Accuracy prediction of opponent aircraft is also essential to ensure making a good decision; therefore, a prediction model of opponent aircraft is designed based on the elementary maneuver method. Finally, the moving horizon optimization strategy is used to effectively model the whole air combat maneuver decision process. Various simulations are performed on typical scenario test and close-in dogfight, the results sufficiently demonstrate the superiority of the designed maneuver decision method. | HUANG Changqiang DONG Kangsheng HUANG Hanqiao TANG Shangqin ZHANG Zhuoran | 2018 | Journal of Systems Engineering and Electronics2018,29,1: | 49 |
| 3 | Fuzzy interface treatment in Eulerian method显示文摘In this paper, we incorporate fuzzy mathematics approach into the Eulerian method to simulate three dimensional multi-material interfaces. In particular, we propose a fuzzy interface treatment for describing interfaces, designing transport plans, and computing transport quantities. Using a set of three-dimensional inviscid isothermal elastic-plastic hydrodynamic equations, we simulate shaped charge jet in different filled dynamite structures. Strain and stress have been under consideration in simulations. Numerical results demonstrate that the fuzzy interface treatment is correct and efficient for three-dimensional multi-material problems. | NING Jianguo1 & CHEN Longwei1,2 1. National Key Laboratory of Protection and Control of Explosive Disaster, Beijing Institute of Technology, Beijing 100081, China 2. The Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China Correspondence should be addressed to Ning Jianguo | 2004 | Science China(Technological Sciences)2004,47,5: | 40 |
| 4 | Interpolation mechanism of fuzzy control显示文摘The fuzzy control algorithms used commonly at present are all regarded as some interpolation functions, which is in essence equivalent to discrete response functions to be fitted. This means that fuzzy control method is similar to finite element method in mathematical physics, which is a kind of direct manner or numerical method in control systems. | 李洪兴 | 1998 | Science China(Technological Sciences)1998,41,3: | 32 |
| 5 | Matlab软件中的Fuzzy Logic工具箱在模糊控制系统仿真中的应用显示文摘根据作者对Matlab仿真软件包的应用研究,阐述了如何在Matlab软件中利用Simulink平台和Fuzzy Logic工具箱实现模糊控制系统的设计、仿真和动态性能分析,并以电站汽温过程控制为例进行了仿真研究,结果表明利用Matlab进行模糊控制系统仿真快速简单精确,可视化强,完全能够满足工程技术人员的需要。 | 刘革辉 单杰峰 郑楚光 | 2000 | 计算机仿真2000,17,5: | 32 |
| 6 | A new algorithm of edge detection for color image: Generalized fuzzy operator显示文摘The definition of the generalized fuzzy set is presented for the first time, and a generalized fuzzy operator is proposed to transform a generalized fuzzy set into a normal fuzzy set. The algorithm theory of the operator, as the newest method of the edge detection of a 2-D image, is successfully established. Many experiments haw proved that the algorithm is simpler, more rapid and more precise in location than other edge detection methods. And a schedule of the concrete performance has been given additionally about the edge detection of color images. | 陈武凡 鲁贤庆 陈建军 吴国雄 | 1995 | Science China Mathematics1995,38,10: | 28 |
| 7 | 基于Fuzzy-DEMATEL法的众包模式下用户参与行为影响因素分析显示文摘众包作为一种新的开放式创新模式,正日益受到人们的关注。为了探讨用户参与行为影响因素之间的作用关系以及关键因素,本文通过文献研究法,总结归纳了发包方、众包平台、接包方三个维度下影响用户参与众包的14种因素,并在专家打分的基础上,运用了模糊集理论和决策实验室分析法揭示了各影响因素之间的综合影响程度,以及影响因素的中心度和原因度。分析发现赏金数额、任务难易程度以及项目规模是影响用户参与众包的主要因素,最后根据分析结果提出了促进用户参与众包的建议。 | 卢新元 王康泰 胡静思 陈勇 | 2017 | 管理评论2017,29,8: | 27 |
| 8 | 一种端元变化的神经网络混合像元分解方法显示文摘遥感图像中普遍存在着混合像元,对混合像元进行分解是遥感图像处理中的难点,在端元(Endm ember)个数不变的情况下,往往得到的分解结果精度不高。本文基于fuzzy ARTMAP神经网络,提出一种基于端元变化的神经网络混合像元分解模型。首先利用混合像元与纯净端元之间的光谱相似性,判断出混合像元包含的端元个数及类别,然后结合fuzzy ARTMAP神经网络进行分解。实验结果表明:本文提出的方法比传统的线性混合模型及fuzzy ARTMAP神经网络模型的精度要高,而且更加符合实际情况。 | 吴柯 张良培 李平湘 | 2007 | 遥感学报2007,11,1: | 25 |
| 9 | FI-代数的多种Fuzzy滤子显示文摘对FI-代数的各种滤子概念进行fuzzy化,引入fuzzy滤子、fuzzy P-滤子、fuzzy Q-滤子和fuzzy C-滤子等概念并给出它们的若干等价刻画。证明了:(1)每个fuzzy Q-滤子都是fuzzy P-滤子;(2)一个fuzzy集成为fuzzy Q-滤子当且仅当它既是fuzzy P-滤子又是fuzzy C-滤子。还给出了多种滤子的扩张定理以及具体的实例和反例。 | 刘春辉 徐罗山 | 2010 | 模糊系统与数学2010,24,2: | 25 |
| 10 | Advances in theory and applications of fuzzy clustering显示文摘The summarization and evaluation of the advances in fuzzy clustering theory are made in the aspects including the criterion functions, algorithm implementations, validity measurements and applications. Several important directions for a further study and the application prospects are also pointed out. | GAO Xinbo & XIE Weixin1. Institute of Electronic Engineering, Xidian University, Xi’an 710071, China 2. President office, Shenzhen University, Shenzhen 518060, China. | 2000 | Chinese Science Bulletin2000,45,11: | 25 |
| 11 | Assessment and sequencing of air target threat based on intuitionistic fuzzy entropy and dynamic VIKOR显示文摘In view of the fact that traditional air target threat assessment methods are difficult to reflect the combat characteristics of uncertain, dynamic and hybrid formation, an algorithm is proposed to solve the multi-target threat assessment problems. The target attribute weight is calculated by the intuitionistic fuzzy entropy(IFE) algorithm and the time series weight is gained by the Poisson distribution method based on multi-times data. Finally,assessment and sequencing of the air multi-target threat model based on IFE and dynamic Vlse Kriterijumska Optimizacija I Kompromisno Resenje(VIKOR) is established with an example which indicates that the method is reasonable and effective. | ZHANG Kun KONG Weiren LIU Peipei SHI Jiao LEI Yu ZOU Jie | 2018 | Journal of Systems Engineering and Electronics2018,29,2: | 24 |
| 12 | Evaluation model for service life of dam based on time-varying risk probability显示文摘For many dam projects in China, the 50-year designed life time is coming to an end. It is urgent to study the theory and method to evaluate the dam service life. In this paper, firstly, the probability theory of fuzzy event and time-varying effect theory are used to analyze the time-variety of various risk factors in the process of dam operations. A method is proposed to quantify the above time-variety and a model to describe the fuzzy time-varying risk probability for the dam structure is also built. Secondly, the information entropy theory is used to analyze the uncertain degree relationship between the characteristic value of membership function and fuzzy risk probability, and a mathematical method is presented to calculate the time-varying risk probability accordingly. Thirdly, the relation mode between time-varying risk probability and service life is discussed. Based on this relation mode and the acceptable risk probability of dams in China, a method is put forward to evaluate and forecast the dam service life. Finally, the proposed theory and method are used to analyze one concrete dam. The dynamic variability and mutation feature of the dam risk probability are analyzed. The remaining service life of this dam is forecasted. The obtained results can provide technology support for the project management department to make treatment measures of engineering and reasonably arrange reinforce cost. The principles in this paper have wide applicability and can be used in risk analysis for slope instability and other fields. | SU HuaiZhi WEN ZhiPing HU Jiang WU ZhongRu | 2009 | Science China(Technological Sciences)2009,52,7: | 23 |
| 13 | 基于ISM-fuzzy MICMAC方法的PPP项目关键风险层级关系识别显示文摘PPP项目失败往往并非由单一风险因素引起,准确分析导致PPP项目失败的风险因素间的相互影响关系至关重要。采用多种风险识别方法,识别出20项易导致PPP项目失败的关键风险因素;利用ISM-fuzzy和MICMAC方法构建关键风险因素相互影响的递阶层级结构,并结合各关键风险因素的依赖性和驱动力对风险因素进行分类,揭示出PPP项目的失败机理;最后,分析了各类关键风险因素的关联影响关系并提出了相应的风险管理建议。研究结果有助于PPP项目利益相关者识别项目执行过程中的关键风险因素和风险因素间的层级关系,尽早采取风险防范措施以降低项目失败的可能性,同时也可作为PPP项目风险管理和决策的有效辅助方法。 | 江小燕 闫碧琼 于竞宇 刘勇 | 2018 | 土木工程与管理学报2018,35,6: | 22 |
| 14 | 常用溶剂的Fuzzy聚类分析显示文摘本文报道了应用Fuzzy聚类分析方法,以计算机为工具,对常用的81种溶剂按选择性的五个参数进行分类。分类结果较L.R.Snyder等人的分类有较大的改进。同时,本文还优选出21种色谱分析常用溶剂。 一、问题的提出 色谱工作者经常遇到溶剂选择问题,如溶剂萃取,液相色谱流动相的选择等。若事先知道常用溶剂的分类情况,则有可能从众多的溶剂中选择出性能较好、价格较低或毒性较小的溶剂,以满足实际工作的需要。 | 张敬宝 班允东 孙毓庆 | 1989 | 色谱1989,7,5: | 18 |
| 15 | Adaptive fuzzy controllers based on variable universe显示文摘Adaptive fuzzy controllers by means of variable universe are proposed based on interpolation forms of fuzzy control. First, monotonicity of control rules is defined, and it is proved that the monotonicity of interpolation functions of fuzzy control is equivalent to the monotonicity of control rules. This means that there is not any contradiction among the control rules under the condition for the control rules being monotonic. Then structure of the contraction-expansion factor is discussed. At last, three models of adaptive fuzzy control based on variable universe are given which are adaptive fuzzy control model with potential heredity, adaptive fuzzy control model with obvious heredity and adaptive fuzzy control model with successively obvious heredity. | 李洪兴 | 1999 | Science China(Technological Sciences)1999,42,1: | 17 |
| 16 | Data Fusion Algorithm Based on Fuzzy Sets and D-S Theory of Evidence显示文摘In cyber-physical systems, multidimensional data fusion is an important method to achieve comprehensive evaluation decisions and reduce data redundancy. In this paper, a data fusion algorithm based on fuzzy set theory and Dempster-Shafer(D-S) evidence theory is proposed to overcome the shortcomings of the existing decision-layer multidimensional data fusion algorithms. The basic probability distribution of evidence is determined based on fuzzy set theory and attribute weights, and the data fusion of attribute evidence is combined with the credibility of sensor nodes in a cyber-physical systems network. Experimental analysis shows that the proposed method has obvious advantages in the degree of the differentiation of the results. | Guangzhe Zhao Aiguo Chen Guangxi Lu Wei Liu | 2020 | Tsinghua Science and Technology2020,25,1: | 17 |
| 17 | 运用Fuzzy公式法对大学生社会适应能力的综合评价显示文摘社会适应能力(社会健康)是整体健康的重要组成部分。运用Fuzzy(模糊)公式法,建立大学生社会适应能力综合评价模式,通过分值量化以评价其社会适应能力的高低,为学校培养高素质的人才提供依据,并为维护学生心理健康、促进能力发展、塑造良好德行、形成健全完善人格、提高社会适应能力服务。 | 肖丽琴 | 2004 | 武汉体育学院学报2004,38,5: | 16 |
| 18 | 基于Fuzzy ARTMAP神经网络的高分辨率图象土地覆盖分类及其评价显示文摘主要讨论了基于 Fuzzy ARTMAP神经网络的高分辨率遥感图象土地覆盖分类方法及其实践 .首先介绍了 Fuzzy ARTMAP神经网络的原理 ,然后用 SPOT XS图象试验数据进行土地覆盖分类 .分类结果与传统的最大似然监督分类 (ML C)、反馈式 (Back Propagation,BP)神经网络的分类结果进行了比较 .通过抽取 5 0 0个样点对 3种分类结果进行精度评价表明 ,Fuzzy ARTMAP神经网络相对其他两种方法 ,分类精度均有不同程度的改善 ,具有更好的分类结果 ,总分类精度比 ML C和 BP算法分别提高 17.4 1%、7.32 % .最后 ,对不同分类方法对于土地覆盖分类结果的影响进行了评价和分析 .试验表明 ,Fuzzy | 刘正军 王长耀 延昊 牛铮 王雷 | 2003 | 中国图象图形学报(A辑)2003,8,2: | 16 |
| 19 | Fuzzy PID Control of Space Manipulator for Both Ground Alignment and Space Applications显示文摘Considering gravity change from ground alignment to space applications, a fuzzy proportional-integral-differential(PID)control strategy is proposed to make the space manipulator track the desired trajectories in different gravity environments. The fuzzy PID controller is developed by combining the fuzzy approach with the PID control method, and the parameters of the PID controller can be adjusted on line based on the ability of the fuzzy controller. Simulations using the dynamic model of the space manipulator have shown the effectiveness of the algorithm in the trajectory tracking problem. Compared with the results of conventional PID control,the control performance of the fuzzy PID is more effective for manipulator trajectory control. | Fu-Cai Liu Li-Huan Liang Juan-Juan Gao | 2014 | International Journal of Automation and computing2014,11,4: | 16 |
| 20 | Mission decision-making method of multi-aircraft cooperatively attacking multi-target based on game theoretic framework显示文摘Coordinated mission decision-making is one of the core steps to effectively exploit the capabilities of cooperative attack of multiple aircrafts. However, the situational assessment is an essential base to realize the mission decision-making. Therefore, in this paper, we develop a mission decision-making method of multi-aircraft cooperatively attacking multi-target based on situational assessment. We have studied the situational assessment mathematical model based on the Dempster-Shafer(D-S) evidence theory and the mission decision-making mathematical model based on the game theory. The proposed mission decision-making method of antagonized airfight is validated by some simulation examples of a swarm of unmanned combat aerial vehicles(UCAVs)that carry out the mission of the suppressing of enemy air defenses(SEAD). | Yao Zongxin Li Ming Chen Zongji Zhou Rui | 2016 | Chinese Journal of Aeronautics2016,29,6: | 16 |