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1.
模糊神经网络理论研究综述   总被引:22,自引:1,他引:22  
本文对于近年来受到普遍重视的前向模糊神经网络及有反馈的模糊神经网络的性质、学习算法及应用等方面的研究进行了较为详尽的综述,分析了所取得的主要成果及其特点,并指出了今后模糊神经网络理论研究中有待解决的许多问题。  相似文献   

2.
神经网络与模糊逻辑   总被引:2,自引:0,他引:2  
本文把神经网络模型理论分为四个部分:①神经元模型及其理论;②单层神经网络;③多层神经网络;④模糊神经网络。并分析了一些重要的神经网络模型的结构、算法及其性能。在此基础上,本文还着重分析了神经网络与模糊逻辑的关系,并指出了它们对新一代计算机的研制有着重要的影响。  相似文献   

3.
一种新型的模糊神经网络及其应用   总被引:8,自引:1,他引:7  
本文提出了一种新型的模糊神经网络,从理论上论证了其推理的合理性和逼近能力,同时应用于系统辩识,取得较好的效果。  相似文献   

4.
软计算中的协作和融合技术综述   总被引:5,自引:0,他引:5  
本文综述了软计算中的协作和融合技术,包括的专题是:模糊系统与遗传算子,模糊系统与神经网络,神经网络与遗传算法。最后探讨了今后的发展趋势。  相似文献   

5.
模糊神经网络在数据融合技术中的应用   总被引:5,自引:0,他引:5  
本文主要阐述了模糊神经网络技术,尤其是模糊联结聚合神经网络技术在数据融合技术中的理论与应用。  相似文献   

6.
本文对具有不确定性控制对象提出了一种自学习模糊神经网络控制方法,模糊控制器采用误差,误差变化及误差加速度的加权和解析描述形式,利用人工神经网络直接对过程的建模,实现对模糊加权因子的自学习优化调整。将上述方法用于焊接熔池动态过程控制实实验,结果表明本文提出的自学习模糊神经网络控制方案有效。  相似文献   

7.
集成神经网络快速估价模型   总被引:2,自引:0,他引:2  
本文将模糊逻辑和神经网络结合起来,并利用系统的层次性和可分性原理,建立起一个集成的模糊神经网络,用以解决在不确定信息下的快速估价问题,并给出了模型算法。  相似文献   

8.
基于GA-BP的模糊神经网络控制器与Elman辨识器的系统设计   总被引:6,自引:0,他引:6  
提出了一种基于神经网络的模糊控制系统 ,该系统由模糊神经网络控制器和模型辨识网络组成 .文中介绍了模糊神经网络控制器采用遗传算法离线优化与 BP算法在线调整 ,给出了具体控制算法 ,推导了变形 Elmam网络的系统辨识算法 .仿真结果表明了此法的可行性和有效性 .  相似文献   

9.
基于神经网络的模糊推理   总被引:2,自引:0,他引:2  
为了使模糊推理符合推理原则,目前已定义了10多种模糊关系,但各种模糊关系定义都存在一定的缺陷。本文提出的基于神经网络的模糊推理,能很好地符合模糊推理原则。  相似文献   

10.
本文根据T-S模糊模型提出了一种新的基于神经元的自适应模糊推理网络,给出了连接结构和学习算法,它能自动学习和修正隶属函数及模糊规则,将其用于Box的煤气炉,太阳黑子预报以及降雨量预报等不同类型的复杂系统建模,仿真结果表明,该模糊神经网络具有收敛速度快,辨识精度高,泛化能力强和适应范围广等特点,可当作复杂系统建模的一种有效工具。  相似文献   

11.
Evaluation of fuzzy regression models by fuzzy neural network   总被引:1,自引:0,他引:1  
In this paper, a novel hybrid method based on fuzzy neural network for approximate fuzzy coefficients (parameters) of fuzzy linear and nonlinear regression models with fuzzy output and crisp inputs, is presented. Here a neural network is considered as a part of a large field called neural computing or soft computing. Moreover, in order to find the approximate parameters, a simple algorithm from the cost function of the fuzzy neural network is proposed. Finally, we illustrate our approach by some numerical examples.  相似文献   

12.
Recently, fuzzy linear regression is considered by Mosleh et al. [1]. In this paper, a novel hybrid method based on fuzzy neural network for approximate fuzzy coefficients (parameters) of fuzzy polynomial regression models with fuzzy output and crisp inputs, is presented. Here a neural network is considered as a part of a large field called neural computing or soft computing. Moreover, in order to find the approximate parameters, a simple algorithm from the cost function of the fuzzy neural network is proposed. Finally, we illustrate our approach by some numerical examples.  相似文献   

13.
基于神经网络的模糊决策方法   总被引:4,自引:0,他引:4  
给出用神经网络去处理模糊决策问题的方法,此方法避免了模糊决策计算量大、计算复杂,隶属函数确定带有主观性等问题。  相似文献   

14.
In this paper, a new hybrid method based on fuzzy neural network for approximate solution of fully fuzzy matrix equations of the form AX=DAX=D, where A and D are two fuzzy number matrices and the unknown matrix X is a fuzzy number matrix, is presented. Then, we propose some definitions which are fuzzy zero number, fuzzy one number and fuzzy identity matrix. Based on these definitions, direct computation of fuzzy inverse matrix is done using fuzzy matrix equations and fuzzy neural network. It is noted that the uniqueness of the calculated fuzzy inverse matrix is not guaranteed. Here a neural network is considered as a part of a large field called neural computing or soft computing. Moreover, in order to find the approximate solution of fuzzy matrix equations that supposedly has a unique fuzzy solution, a simple algorithm from the cost function of the fuzzy neural network is proposed. To illustrate the easy application of the proposed method, numerical examples are given and the obtained results are discussed.  相似文献   

15.
In this paper, a novel hybrid method based on fuzzy neural network for approximate solution of fuzzy linear systems of the form Ax = Bx + d, where A and B are two square matrices of fuzzy coefficients, x and d are two fuzzy number vectors, is presented. Here a neural network is considered as a part of a large field called neural computing or soft computing. Moreover, in order to find the approximate solution, a simple and fast algorithm from the cost function of the fuzzy neural network is proposed. Finally, we illustrate our approach by some numerical examples.  相似文献   

16.
模糊处理变结构神经网络日负荷预测方法研究   总被引:3,自引:0,他引:3  
对于受不确定因素影响的日电力负荷,首次提出了基于模糊分类规则的变结构神经网络负荷预测模型,考虑从两方面改进预测精度,一个方面是通过模糊分类规则,使过去的负荷数据分为不同气候特征,选用同类特征数据进行预测,另一方面是通过神经网络变结构优化,确定最优网络和最优拟合逼近,从而得到最优的预测结果,这种新方法同时考虑了天气因素的影响和神经网络的最优确定,因此,较大提高了日负荷预测的精度。  相似文献   

17.
为了进一步提高短时交通流量预测的精度,提出了一种粒子群算法的模糊神经网络组合预测模型,模糊神经网络融合了神经网络的学习机制和模糊系统的语言推理能力等优点,弥补各自不足,将自回归求和滑动平均(ARIMA)和灰色Verhulst模型进行初步预测,并将两种初步预测的结果作为模糊神经网络的输入,构建基于改进模神经网络的组合预测模型,在此基础上进行训练和预测,其中模糊神经网络的相关参数由改进粒子群来优化,利用本方法来对南京市汉中路短时交通流量进行预测,结论表明:方法充分发挥了单一模型的优势,比单一的预测模型更加精确,是短时交通流量预测的一个有效方法。  相似文献   

18.
The fuzzified neural network based on fuzzy number operations is presented as a powerful modelling tool here. We systematically introduce ideas and concepts of a novel neural network based on fuzzy number operations. First we suggest how to compute the results of addition, subtraction, multiplication and division for two fuzzy numbers. Second we propose a learning algorithm, and present some ideas about the choice of fuzzy weights and fuzzy biases and a numerical scheme for the calculation of outputs of the fuzzified neural network. Finally, we show some results of computer simulations.  相似文献   

19.
Group Technology (GT) is a useful way of increasing the productivity for manufacturing high quality products and improving the flexibility of manufacturing systems. Cell formation (CF) is a key step in GT. It is used in designing good cellular manufacturing systems using the similarities between parts in relation to the machines in their manufacture. It can identify part families and machine groups. Recently, neural networks (NNs) have been widely applied in GT due to their robust and adaptive nature. NNs are very suitable in CF with a wide variety of real applications. Although Dagli and Huggahalli adopted the ART1 network with an application in machine-part CF, there are still several drawbacks to this approach. To address these concerns, we propose a modified ART1 neural learning algorithm. In our modified ART1, the vigilance parameter can be simply estimated by the data so that it is more efficient and reliable than Dagli and Huggahalli’s method for selecting a vigilance value. We then apply the proposed algorithm to machine-part CF in GT. Several examples are presented to illustrate its efficiency. In comparison with Dagli and Huggahalli’s method based on the performance measure proposed by Chandrasekaran and Rajagopalan, our modified ART1 neural learning algorithm provides better results. Overall, the proposed algorithm is vigilance parameter-free and very efficient to use in CF with a wide variety of machine/part matrices.  相似文献   

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