基于隐马尔可夫模型与神经网络混合的被动声目标分类技术

提出了一种改进型隐马尔可夫模型／神经网络混合分类器,该分类器将隐马尔可夫模型的时间校正能力与神经网络的静态区分能力结合在一起。它首先利用循环无跳转ＨＭＭ模型对第一测试特征序列进行全状态分割。将Ｔ帧特征序列按时间演化顺序校正成Ｎ帧平均状态序列。然后 交其作为ＲＢＦ网络的输入矢量进行分类。实验结果表明,该分类器比单纯的神经网络或隐马尔可夫模型分类器具有更限的分类效果。     

基于遗传算法的神经网络被动声呐目标分类研究

被动声呐目标识别系统中目标分类器的设计和训练是一项重要内容，本文设计了目标分类器的神经网络结构，提出了一种用改进的遗传算法训练神经网络分类器的新方法，最后，对海上实录的Ａ，Ｂ，Ｃ三类目标噪声进行了分类识别，实验结果表明基于遗传算法的神经网络分类器比传统的基于ＢＰ算法的神经网络分类源泛化性能有明显提高。     

一种无师训练的模糊极小极大人工神经网络

提出了一种无师训练的fuzzy min-max人工神经网络，它兼有一般fuzzy min-max网与ART2网的优点，既弥补了fuzzy min-max网不能自适应在线学习新类的缺陷，又消除了ART2网警戒门限过高的弊病，经模式识别仿真对比，对同样的输入数据，文中提出的网络用较低的警戒门限值即可达到ART2用很高的警戒门限值才能达到的分类效果，且计算量大大减少，得到的结论是：对模式识别而言，文中提出的网络比fuzzy min-max网和ART2网更具有实用价值。     

基于进化规划的自适应高斯神经网络

自适应高斯神经网络能够对目标信号的功率谱有效识别特征进行自动提取和分类，但此网络使用BP算法，其误差能量函数是一个不规则的超曲面，容易陷入局部极小值．因此，提出了一种使用进化规则来设计和训练自适应高斯神经网络的新方法．该方法能够自动地确定网络的最优结构和联结权值，同时避免网络的局部优化．实验结果表明，将该方法用于被动声纳目标的分类识别，能够有效地克服局部最小问题，具有更好的识别率．     

无限制手写数字自动识别系统的研究

给出了一个高性能的自由手写数字识别系统，提出了在不同尺度下抽取结构上的粗特征和细特征并分层实现的方法。在粗分类阶段，基于结构粗特征用分类树进行稳定的粗分类，并进行属性确认，还用小波分解技术进行细分类识别；又提出并实现以微小线段及其邻域作为比较匹配的相关匹配方法来减少候选类别数（限制性分类），最后，提出并实现用二分类ＢＰ网对非相似二类别字进行非限制性分类，另外，在识别的前端，还对书写工整的文字进行Ｆ     

遗传算法应用于目标识别系统在线学习

在线学习是水声目标识别系统的重要功能之一，本文提出了遗传算法用于水声目标识别系统多层感知器分类网络在线学习的一种实现方法，实验表明，所提出的方法能够取得一定的效果，使原样本训练地宾ＭＬＰ网络经过在线学习对新增目标的识别率有明显增加。     

唐山水泥机械厂零件编码（SJBM）系统的制订

本文结合ＳＪＢＭ系统的制订，提出借鉴公开分类系统制订专用分类系统具体做法，实践证明是成功的，可大大缩短专用分类系统开发周期，并指出ＳＪＢＭ系统对水泥机械行业各工厂专用分类系统的制订有重要参考价值。     

计算机网络故障的一般识别与排查

文章主要就网络常见故障的分类诊断进行了阐述。     

基于深度神经网络的货架商品识别方法

目的为快速统计货架商品信息,提出一种基于深度神经网络的货架商品自动识别方法。方法摄像头采集的货架商品图像经过深度神经网络算法处理,得到了图像中商品的SKU和位置。针对货架商品识别这种密集检测场景,文中方法改进了通用深度神经网络目标检测算法,将算法分为检测和分类2个阶段且重新设计了部分网络结构。最后,将文中方法和传统货架商品识别方法以及通用深度神经网络目标检测方法进行了比较。结果实验证明该方法的检测阶段的模型平均正确率达到96.5%,分类阶段的分类准确率达到99.9%。整图测试的查准率为97.56%,查全率为99.26%。结论相较于以往使用传统的目标检测模型进行货架商品识别以及使用SIFT等人工算子提取特征并分类识别商品具体SKU,文中方法的商品检出率和分类准确率都有了大幅度的提升,具有很好的应用潜力。     

企业瓶颈管理法（BNA）及其应用

为改善企业管理、提高整体效益、介绍了一种企业管理优化新方法－－企业瓶颈管理法（ＢＮＡ）。内容包括以下几个方面：企业瓶颈（ＢＮ）的定义及其特征分析、企业ＢＮ的系统分类、企业ＢＮ的识别方法，包括检核表法、专家诊断法、问题暴露法及对比法；企业ＢＮ成因分析；企业ＢＮ评价方法，包括ＢＮ价值评价法与ＢＮ矩阵评价法；企业ＢＮ消除原则，消除方法及工作程序等。最后。给出了一个实际企业应用案例，结果表明该方法具有良好     

基于径向基函数神经网络的滚动轴承故障模式的识别

径向基函数（RBF）神经网络是一种3层前馈性神经网络，它具有较强的函数逼近能力和分类能力。鉴于径向基函数神经网络的优点，在对滚动轴承振动信号特征分析的基础上，提出了采用时序方法对其建立AR模型，利用AR模型参数建立径向基函数神经网络，并用该网络对滚动轴承的故障模式进行了识别。理论和试验证明了该方法的有效性，且具有较高的识别精度。     

目标地震动信号的特征提取及识别研究

地面目标的地震动信号是目标识别的关键,本文研究了机动目标地震动特性,总结出目标的地震动信号的特征提取规律,并将神经网络方法用于目标的地震动信号的分类识别中。给出了识别结构及改进的BP算法,并将改进的BP算法用于实际目标的地震动信号的分类识别,得到令人满意的结果。     

A novel RBF neural network for radar emitter recognition based on Rough Sets

With the spreading of radar emitter technology, it is more difficult for traditional methods to recognize radar emitter signals. In this article, a new method is proposed to establish a novel radial basis function (RBF) neural network for radar emitter recognition based on Rough Sets theory. First of all, radar emitter signals describing words are processed by Rough Sets, and the importance weight of each attribute is obtained and the classification rules are extracted. The classification rules are the basis of initial centers of Rough k-means. These initial centers can reduce the computational complexity of Rough k-means efficiently because of a priori knowledge from Rough Sets. In addition, basis functions of neural units of an RBF neural network are improved with attribute importance weights based on Rough Sets theory. The novel network structure makes the RBF neural network more effective. The simulation results show that novel RBF neural network radar emitter recognition can recognize radar emitter signals more effectively than a traditional RBF neural network, because of the improved Rough k-means and the network structure with attribute importance weights.     

Ground Nephogram Recognition Algorithm Based on Selective Neural Network Ensemble

In view of the low accuracy of traditional ground nephogram recognition model, the authors put forward a k-means algorithm-acquired neural network ensemble method, which takes BP neural network ensemble model as the basis, uses k-means algorithm to choose the individual neural networks with partial diversities for integration, and builds the cloud form classification model. Through simulation experiments on ground nephogram samples, the results show that the algorithm proposed in the article can effectively improve the Classification accuracy of ground nephogram recognition in comparison with applying single BP neural network and traditional BP AdaBoost ensemble algorithm on classification of ground nephogram.     

Picture-Induced EEG Signal Classification Based on CVC Emotion Recognition System

Emotion recognition systems are helpful in human–machine interactions and Intelligence Medical applications. Electroencephalogram (EEG) is closely related to the central nervous system activity of the brain. Compared with other signals, EEG is more closely associated with the emotional activity. It is essential to study emotion recognition based on EEG information. In the research of emotion recognition based on EEG, it is a common problem that the results of individual emotion classification vary greatly under the same scheme of emotion recognition, which affects the engineering application of emotion recognition. In order to improve the overall emotion recognition rate of the emotion classification system, we propose the CSP_VAR_CNN (CVC) emotion recognition system, which is based on the convolutional neural network (CNN) algorithm to classify emotions of EEG signals. Firstly, the emotion recognition system using common spatial patterns (CSP) to reduce the EEG data, then the standardized variance (VAR) is selected as the parameter to form the emotion feature vectors. Lastly, a 5-layer CNN model is built to classify the EEG signal. The classification results show that this emotion recognition system can better the overall emotion recognition rate: the variance has been reduced to 0.0067, which is a decrease of 64% compared to that of the CSP_VAR_SVM (CVS) system. On the other hand, the average accuracy reaches 69.84%, which is 0.79% higher than that of the CVS system. It shows that the overall emotion recognition rate of the proposed emotion recognition system is more stable, and its emotion recognition rate is higher.     

Acoustic Emission Recognition Based on a Two-Streams Convolutional Neural Network

The Convolutional Neural Network (CNN) is a widely used deep neural network. Compared with the shallow neural network, the CNN network has better performance and faster computing in some image recognition tasks. It can effectively avoid the problem that network training falls into local extremes. At present, CNN has been applied in many different fields, including fault diagnosis, and it has improved the level and efficiency of fault diagnosis. In this paper, a two-streams convolutional neural network (TCNN) model is proposed. Based on the short-time Fourier transform (STFT) spectral and Mel Frequency Cepstrum Coefficient (MFCC) input characteristics of two-streams acoustic emission (AE) signals, an AE signal processing and classification system is constructed and compared with the traditional recognition methods of AE signals and traditional CNN networks. The experimental results illustrate the effectiveness of the proposed model. Compared with single-stream convolutional neural network and a simple Long Short-Term Memory (LSTM) network, the performance of TCNN which combines spatial and temporal features is greatly improved, and the accuracy rate can reach 100% on the current database, which is 12% higher than that of single-stream neural network.     

卷积神经网络在印刷品缺陷检测的应用

目的 为了改善传统机器检测印刷产品缺陷存在误费率高的不足。方法 提出以卷积神经网络为控制核心的印刷品缺陷检测系统。设计可在实际检测中应用的卷积神经网络,设计在线印刷质量检测系统的硬件结构。结果 对结构相同而训练次数、学习率不同的卷积神经网络进行了缺陷检测的性能对比,验证了该卷积神经网络在学习率小于0.01时,可以获得较好的识别效果;在学习率大于0.05时,网络不容易收敛。网络训练次数越多,精度越高,相应的训练时间也较长。在满足快速性和精确度的条件下,确定了适应某印刷品的缺陷检验网络训练次数为50,学习率为0.005,此时的识别率为90%。结论 经过实验证明,该检测系统具有良好的缺陷识别能力,缺陷类型的分类准确率较高。该系统具有一定的实用价值。     

一种基于YOLOv3算法的3D打印点阵结构缺陷识别方法

针对3D打印点阵结构中缺陷目标因尺寸小、缺陷特征微弱而难以准确自动识别的问题,提出了一种基于YOLOv3算法的点阵结构缺陷智能识别新方法.该方法利用深度学习网络模型在特征提取方面的优势,采用多尺度网络进行预测,将缺陷的分类和定位问题作为回归问题处理.实验结果表明,所提算法实现了一种3D打印点阵结构内部典型缺陷的识别,缺...     

基于人工鱼群算法-极限学习机的多手势精准识别

手势作为人机交互的重要方式,因灵活性与便捷性强,已成为控制领域的研究重点。针对上肢康复机器人手势识别技术存在的不足,结合特征组合与滑动窗口法,提出一种基于人工鱼群算法（artificial fish swarm algorithm,AFSA）优化的极限学习机（extreme learning machine,ELM）的多手势精准识别方法,以提高手势识别的准确率。首先,运用表面肌电测量系统采集人体常用的8种手势对应的表面肌电信号（surface electromyography,SEMG）,作为后续分类模型的信号源,并运用去噪技术与起止点检测技术对SEMG进行预处理;然后,选取通过主成分分析（principal components analysis,PCA）降维处理后的最优特征组合与最优滑动窗口;接着,采用AFSA搜寻ELM的最优输入权值和隐含阈值,以提高其分类准确率;最后,对AFSA优化的ELM（AFSA-ELM）分类模型、反向传播（back propagation,BP）神经网络分类模型和未优化的ELM分类模型进行比较,以验证所提出方法的精准性。实验结果表明,结合最优特征组合与最优滑动窗口设计的AFSA-ELM分类模型对多种手势的平均识别准确率高达97.4%,比BP神经网络分类模型和未优化的ELM分类模型分别高3.5%和1.6%,验证了所提出方法的识别精准性。研究结果可为手势识别提供新思路,进而为人体上肢动作的深度分析和上肢康复机器人手势识别算法的优化提供理论基础和参考。     

Optical implementation of a translation-invariant second-order neural network for multiple-pattern classification

A novel approach to the optical implementation of second-order neural networks that can recognize multiple patterns is reported. The systems issues, especially the accuracy required for the weighted interconnections, are discussed for numeric character (0-9) recognition. It is shown that the accuracy of the weighted interconnections has a far greater influence on the network performance during training than on classification. To lessen the problem, we introduce an adaptive learning rule, whereby the optical power is adjusted during training. Finally, numeric character recognition using an experimental system with a liquid-crystal display is demonstrated.