一种模糊神经网络在故障分类中的应用研究

针对故障分类中的非线性映射问题,提出了一种基于模糊逻辑作为激活函数的人工神经网络。该网络容易由硬件实现,同时增加基于IF-THEN规则的神经网络的解释性,提高了模糊神经网络作为分类器进行实时识别和分类的可行性。将所提出模糊神经网络分类器用于高压输电线路故障分类,仿真实验结果表明,该分类器对故障类型有较强的识别能力,适合于在线故障识别系统。     

基于堆叠模型的司法短文本多标签分类

司法文书短文本的语义多样性和特征稀疏性等特点,对短文本多标签分类精度提出了很大的挑战,传统单一模型的分类算法已无法满足业务需求。为此,提出一种融合深度学习与堆叠模型的多标签分类方法。该方法将分类器划分成两个层次,第一层使用BERT、卷积神经网络、门限循环单元等深度学习方法作为基础分类器,每个基础分类器模型通过K折交叉验证得到所有数据的多标签分类概率值,将此概率值数据进行融合形成元数据;第二层使用自定义的深度神经网络作为混合器,以第一层的元数据为输入,通过训练多标签概率矩阵获取模型参数。该方法将强分类器关联在一起,获得比单个分类器更加强大的性能。实验结果表明,深度学习堆叠模型实现了87%左右的短文本分类F1分数,优于BERT、卷积神经网络、循环神经网络及其他单个模型的性能。     

纸币冠字号识别率改进算法

针对被污染纸币的冠字号的识别常见的几种干扰选择合适解决方法,并改进神经网络分类器,使用多层分类方法进行识别.现有的清分机和点钞机都能很好得识别八到十成新钱币的冠字号,然而,随着纸币流通不断做旧,清分机对纸币冠字号的识别明显下降,其中磨损、汗渍、折痕等是对清分机的识别影响很大的因素.本文提出多种新颖的算法,能够很好的解决被污染纸币的冠字号识别问题,并使用多层神经网络判别树架构,有效得提高了纸币识别率和容错率,最终实验结果表明,本算法能获得98.3％的识别率.     

基于模糊积分的多神经网络集成信息融合

使用模糊积分实现集成神经网络中的子分类器信息融合,提出一种更加有效和全面的模糊密度,用于模糊积分的计算。以双螺旋分类问题为实验对象,使用集成神经网络实现具有较高正确率的分类方法,对神经网络集成的有效性和各类参数的设定作实验分析,并通过多种模糊密度的比较数据说明该模糊密度函数的有效性。     

一种基于动态聚类的模糊分类规则的生成方法

介绍了一种基于动态聚类的模糊分类规则的生成方法，这种方法能决定规则数目，隶属函数的位置及形状．首先，介绍了基于超圆雏体隶属函数的模糊分类规则的基本形式；然后，介绍动态聚类算法，该算法能将每一类训练模式动态的分为成簇，对于每簇，则建立一个模糊规则；通过调整隶属函数的斜度，来提高对训练模式分类识别率，达到对模糊分类规则进行优化调整的目的；用两个典型的数据集评测了这篇文章研究的方法，这种方法构成的分类系统在识别率与多层神经网络分类器相当，但训练时间远少于多层神经网络分类器的训练时间．     

一种神经网络文本分类器的设计与实现

论文着重介绍了一种基于神经网络的文本分类器,分类器使用神经网络作为分类工具,特征词的词频组成原始特征向量,和神经网络输入层的神经元一一对应。并引入了信息检索中的常用技术——潜在语义索引,训练过程中结合遗传算法,优化神经网络的初始权值。最后对分类器进行了开放性测试,实验表明分类器对文本分类具有较高的平均查全率和平均精度。     

基于Sugeno模糊积分神经网络分类器融合方法在手写数字识别中的应用

神经网络是模式识别中一种常见的分类器.针对同一个分类问题,构建多个分类器并把多个分类器进行融合可以提高分类系统的分类正确率、改善系统的稳健性.首先介绍了Sugeno模糊积分及Sugeno模糊积分神经网络分类器融合方法的一般原理,而后将其应用于手写数字识别,通过实际的案例验证了该融合方法的有效性和可行性.     

基于MATLAB的BP-LVQ神经网络组合分类模型

综合考虑神经网络分类误差率以及训练速率,文中从组合分类器结构出发,提出一种树形多层的BP-LVQ神经网络组合分类器模型。该组合分类器利用BP神经网络独立性以及自适应性解决了一般分类器难以不断学习和适应新攻击的问题,利用LVQ神经网络的竞争性将客观分类信息转变成使用者所定义的类别。利用MATLAB神经网络工具箱对该BP-LVQ神经网络组合分类模型进行仿真实验,实验结果表明,该组合分类器的分类效率明显高于单一分类器。     

基于径向基函数神经网络的红外步态识别

为提高红外步态识别的效果,提出一种基于径向基函数神经网络的多分类器融合算法。对红外步态序列,分别应用基于轮廓线傅立叶描述子特征的模糊分类器和基于下肢关节角度特征的贝叶斯分类器进行识别,再利用径向基函数神经网络的学习和分类功能,对获得的输出信息进行度量层的融合和再识别。仿真实验结果表明,该算法获得更加精确的分类效果。     

基于MATLAB的BP-LVQ神经网络组合分类模型

综合考虑神经网络分类误差率以及训练速率，文中从组合分类器结构出发，提出一种树形多层的BP—LVQ神经网络组合分类器模型。该组合分类器利用BP神经网络独立性以及自适应性解决了一般分类器难以不断学习和适应新攻击的问题，利用LVQ神经网络的竞争性将客观分类信息转变成使用者所定义的类别。利用MATLAB姬神经网络工具箱对该BP—LVQ神经网络组合分类模型进行仿真实验，实验结果表明，该组合分类器的分类效率明显高于单一分类器。     

基于动态模糊集的视觉不变特征融合算法研究

针对目标的决策问题,依据动态模糊逻辑理论,提出一种视觉不变特征的融合算法.在多特征空间训练多个神经网络,根据各个特征空间对最终结果的贡献程度,对投射到每个特征空间所得到的特征向量计算隶属度,并进行动态模糊加权融合处理,以实现机器对特征选择的自适应性,减少人工干预并最终实现机器智能的目标.实验结果表明,该方法在特征信息缺...     

Topology constraint free fuzzy gated neural networks for patternrecognition

A novel topology constraint free neural network architecture using a generalized fuzzy gated neuron model is presented for a pattern recognition task. The main feature is that the network does not require weight adaptation at its input and the weights are initialized directly from the training pattern set. The elimination of the need for iterative weight adaptation schemes facilitates quick network set up times which make the fuzzy gated neural networks very attractive. The performance of the proposed network is found to be functionally equivalent to spatio-temporal feature maps under a mild technical condition. The classification performance of the fuzzy gated neural network is demonstrated on a 12-class synthetic three dimensional (3-D) object data set, real-world eight-class texture data set, and real-world 12 class 3-D object data set. The performance results are compared with the classification accuracies obtained from a spatio-temporal feature map, an adaptive subspace self-organizing map, multilayer feedforward neural networks, radial basis function neural networks, and linear discriminant analysis. Despite the network's ability to accurately classify seen data and adequately generalize validation data, its performance is found to be sensitive to noise perturbations due to fine fragmentation of the feature space. This paper also provides partial solutions to the above robustness issue by proposing certain improvements to various modules of the proposed fuzzy gated neural network.     

Quantum neural networks (QNNs): inherently fuzzy feedforward neuralnetworks

This paper introduces quantum neural networks (QNNs), a class of feedforward neural networks (FFNNs) inherently capable of estimating the structure of a feature space in the form of fuzzy sets. The hidden units of these networks develop quantized representations of the sample information provided by the training data set in various graded levels of certainty. Unlike other approaches attempting to merge fuzzy logic and neural networks, QNNs can be used in pattern classification problems without any restricting assumptions such as the availability of a priori knowledge or desired membership profile, convexity of classes, a limited number of classes, etc. Experimental results presented here show that QNNs are capable of recognizing structures in data, a property that conventional FFNNs with sigmoidal hidden units lack.     

基于模糊细胞神经网络的彩色图像形态学重构

利用彩色图像的ＲＧＢ空间分解,在模糊细胞神经网络上实现了彩色图像数学形态学的基本算子,并讨论了该实现相对于常规串行计算机算法的优越性和局阴,进一步地利用按分量的灰度重构,实现了彩色重构算法,最后讨论了该重构算法在抑帛镐频噪声中的应用,给出的仿真结果对对于推广模糊细胞神经网络在彩色图像实时处理和硅眼等模拟逻辑中的应用有着重要的意义。     

基于模糊神经网络味觉信号识别的研究

文中提出了一种基于模糊神经网络方法的味觉信号识别模型,利用小波变换实现了对传感器所采集的味觉信号进行数据压缩及特征抽取,以模糊神经网络作为味觉信号的识别工具。     

Driving Profile Modeling and Recognition Based on Soft Computing Approach

Advancements in biometrics-based authentication have led to its increasing prominence and are being incorporated into everyday tasks. Existing vehicle security systems rely only on alarms or smart card as forms of protection. A biometric driver recognition system utilizing driving behaviors is a highly novel and personalized approach and could be incorporated into existing vehicle security system to form a multimodal identification system and offer a greater degree of multilevel protection. In this paper, detailed studies have been conducted to model individual driving behavior in order to identify features that may be efficiently and effectively used to profile each driver. Feature extraction techniques based on Gaussian mixture models (GMMs) are proposed and implemented. Features extracted from the accelerator and brake pedal pressure were then used as inputs to a fuzzy neural network (FNN) system to ascertain the identity of the driver. Two fuzzy neural networks, namely, the evolving fuzzy neural network (EFuNN) and the adaptive network-based fuzzy inference system (ANFIS), are used to demonstrate the viability of the two proposed feature extraction techniques. The performances were compared against an artificial neural network (NN) implementation using the multilayer perceptron (MLP) network and a statistical method based on the GMM. Extensive testing was conducted and the results show great potential in the use of the FNN for real-time driver identification and verification. In addition, the profiling of driver behaviors has numerous other potential applications for use by law enforcement and companies dealing with buses and truck drivers.     

基于模糊神经网络的人脸识别方法研究

人脸识别是模式识别研究领域的重要课题，具有广阔的应用前景。本文提出了基于模糊神经网络的人脸识别方法。首先用最优鉴别分析方法提取人脸的最优鉴别矢量集，构成特征空间，然后在特征空间中设计模糊神经网络分类器。在ORL人脸图象库上的实验结果表明了该方法的有效性。     

模糊神经网络补偿的伺服系统二次型最优控制

针对伺服系统二次型最优控制存在的问题,提出了基于模糊神经网络补偿的二次型最优控制方法,该控制方法利用模糊神经网络的实时学习能力,能够及时补偿被控对象建模不准确、参数摄动和外界干扰等非线性因素对控制系统性能的影响,增强控制系统的自适应能力,有效提高控制系统的跟踪性能和抗干扰鲁棒性能.仿真试验结果验证了该控制方法的有效性.     

基于异构特征聚合的局部视图扭曲型纸币识别

如何识别同一物体的不同结构的表现形式,对于机器而言,是一个比较困难的识别工作.本文以易变形的纸币为例,提出了一种基于异构特征聚合的局部视图扭曲型纸币识别方法.首先利用灰度梯度共生矩阵、Haishoku算法和圆形LBP分别获得纹理风格、色谱风格和纹理,这些特征从不同的角度描述了局部纸币图像,然后通过VGG-16、ResN...     

Hierarchical Singleton-Type Recurrent Neural Fuzzy Networks for Noisy Speech Recognition

This paper proposes noisy speech recognition using hierarchical singleton-type recurrent neural fuzzy networks (HSRNFNs). The proposed HSRNFN is a hierarchical connection of two singleton-type recurrent neural fuzzy networks (SRNFNs), where one is used for noise filtering and the other for recognition. The SRNFN is constructed by recurrent fuzzy if-then rules with fuzzy singletons in the consequences, and their recurrent properties make them suitable for processing speech patterns with temporal characteristics. In n words recognition, n SRNFNs are created for modeling n words, where each SRNFN receives the current frame feature and predicts the next one of its modeling word. The prediction error of each SRNFN is used as recognition criterion. In filtering, one SRNFN is created, and each SRNFN recognizer is connected to the same SRNFN filter, which filters noisy speech patterns in the feature domain before feeding them to the SRNFN recognizer. Experiments with Mandarin word recognition under different types of noise are performed. Other recognizers, including multilayer perceptron (MLP), time-delay neural networks (TDNNs), and hidden Markov models (HMMs), are also tested and compared. These experiments and comparisons demonstrate good results with HSRNFN for noisy speech recognition tasks