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2020 International Conference on Machine Learning and Cybernetics (ICMLC)最新文献

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Uncertainty-Observer-Based Dynamic Sliding Mode Formation Control for Multi-Agent Systems 基于不确定性观测器的多智能体系统动态滑模编队控制
Pub Date : 2020-12-02 DOI: 10.1109/ICMLC51923.2020.9469539
Yang Fei, Xin Yuan, P. Shi, C. Lim
For practical applications of multi-agent systems, agents could be continuously subject to external disturbances, which is likely to negatively affect their tracking performances. Furthermore, the unknown or inaccurate factors in system dynamics can also bring negative effects to a system’s performance. In this paper, an uncertainty-observer-based dynamic sliding mode control scheme is proposed to deal with time-varying formation control problems of second-order nonlinear multi-agent systems. An uncertainty observer is first implemented for each agent to estimate the combination of the agent’s external and internal uncertainties and its time derivative. An observer-based dynamic sliding mode formation control law is developed for a cluster of second-order nonlinear agents to achieve time-varying formation. Finally, a numerical simulation is provided to illustrate the validity of the proposed control approach.
在多智能体系统的实际应用中,智能体可能持续受到外界干扰,这可能会对其跟踪性能产生负面影响。此外,系统动力学中未知或不准确的因素也会给系统的性能带来负面影响。针对二阶非线性多智能体系统的时变群体控制问题,提出了一种基于不确定性观测器的动态滑模控制方法。首先为每个agent实现一个不确定性观测器来估计agent的外部和内部不确定性及其时间导数的组合。针对一类二阶非线性智能体,提出了一种基于观测器的动态滑模编队控制律,以实现时变编队。最后,通过数值仿真验证了所提控制方法的有效性。
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引用次数: 0
Supervised Neighborhood Based Ensemble Attribute Reduction 基于监督邻域的集成属性约简
Pub Date : 2020-12-02 DOI: 10.1109/ICMLC51923.2020.9469592
Jingjing Song, Zehua Jiang, Huili Dou, Eric C. C. Tsang
In neighborhood based attribute reduction, neighborhood relation is a typical tool for distinguishing samples. Notably, the neighborhood relation may be powerless in providing satisfactory distinguishing ability. In view of this, the supervised neighborhood based attribute reduction has been explored. However, the supervised neighborhood based reduct may be lack of universality. To file such gap, an ensemble strategy for computing supervised neighborhood based reduct is proposed in our paper. Such ensemble strategy is realized through considering the requirement of each decision class. The experimental results on 8 UCI data sets show that the supervised neighborhood based ensemble strategy can generate reduct not only with higher generalization performance but also with higher stability.
在邻域属性约简中,邻域关系是典型的样本识别工具。值得注意的是,邻域关系可能无法提供令人满意的区分能力。鉴于此,本文对基于监督邻域的属性约简进行了探索。然而,基于监督邻域的约简可能缺乏通用性。为了弥补这种差距,本文提出了一种基于监督邻域约简的集成策略。这种集成策略是通过考虑各个决策类的需求来实现的。在8个UCI数据集上的实验结果表明,基于监督邻域的集成策略生成的约简不仅具有较高的泛化性能,而且具有较高的稳定性。
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引用次数: 0
Object Recognition Using Enhanced Particle Swarm Optimization 基于增强粒子群优化的目标识别
Pub Date : 2020-12-02 DOI: 10.1109/ICMLC51923.2020.9469584
Michael Willis, Li Zhang, Han Liu, Hailun Xie, Kamlesh Mistry
The identification of the most discriminative features in an explainable AI decision-making process is a challenging problem. This research tackles such challenges by proposing Particle Swarm Optimization (PSO) variants embedded with novel mutation and sampling iteration operations for feature selection in object recognition. Specifically, five PSO variants integrating different mutation and sampling strategies have been proposed to select the most discriminative feature subsets for the classification of different objects. A mutation strategy is firstly proposed by randomly flipping the particle positions in some dimensions to generate new feature interactions. Moreover, instead of embarking the position updating evolution in PSO, the proposed PSO variants generate offspring solutions through a sampling mechanism during the initial search process. Two offspring generation sampling schemes are investigated, i.e. the employment of the personal and global best solutions obtained using the mutation mechanism, respectively, as the starting positions for the subsequent search process. Subsequently, several machine learning algorithms are used in conjunction with the proposed PSO variants to perform object classification. As evidenced by the empirical results, the proposed PSO variants outperform the original PSO algorithm, significantly, for feature optimization.
在可解释的人工智能决策过程中识别最具歧视性的特征是一个具有挑战性的问题。本研究提出粒子群优化(PSO)变体嵌入新的突变和采样迭代操作,用于目标识别中的特征选择,以解决这些挑战。具体来说,我们提出了5种整合了不同突变和采样策略的PSO变体,以选择最具判别性的特征子集对不同的目标进行分类。首先提出了一种突变策略,通过在某些维度上随机翻转粒子位置来产生新的特征交互。此外,所提出的PSO变体在初始搜索过程中通过抽样机制产生子代解,而不是在PSO中进行位置更新进化。研究了两种子代抽样方案,即分别使用利用突变机制获得的个体和全局最优解作为后续搜索过程的起始位置。随后,将几种机器学习算法与提出的PSO变体结合使用以执行对象分类。实验结果表明,本文提出的粒子群算法变体在特征优化方面明显优于原粒子群算法。
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引用次数: 1
Parkinson’s Disease Detection Using FMRI Images Leveraging Transfer Learning on Convolutional Neural Network 利用卷积神经网络迁移学习的FMRI图像检测帕金森病
Pub Date : 2020-12-02 DOI: 10.1109/ICMLC51923.2020.9469530
Asaduzzaman Sajeeb, A. Sakib, Sanjida Ali Shushmita, S. Kabir, Md. Tanzim Reza, M. Parvez
Parkinson’s disease(PD) is a neurological condition that is dynamic and steadily influences the movement of the human body. PD influences the central apprehensive system which happens because of the hardship of dopaminergic neurons brought about in a neuro-degenerative incubation. The patients who have PD usually suffer from tremor, unyielding nature, postural shifts, and lessen in unconstrained advancements. There is no particular diagnosis process for PD. PD varies from one person to another person depending on the situation and the family history.Magnetic Resonance Imaging (MRI), Computed Tomography (CT), ultrasound of the brain, Positron Emission Tomography (PET) scans are common imaging tests to figure out this disease but these tests are not particularly effective. In this research, several tests are run on two types of data group - control and PD affected people. The dataset is collected from the Parkinson’s Progression Markers Initiative (PPMI) repository. Then MRI slices are processed from the selected data group into the CNN models. Three different Convolutional Neural Network (CNN) architectures are used in this work to extract features from the data group. The CNN models are InceptionV3, VGG16 and VGG19. These models are used in this research to compare and to get better accuracy. Among these models, VGG19 worked best in the dataset because the accuracy for VGG19 is 91.5% where VGG16 gives 88.5% and inceptionV3 gives 89.5% accuracy on detecting PD.
帕金森病(PD)是一种动态且稳定地影响人体运动的神经系统疾病。PD对中枢焦虑系统的影响是由于神经退行性发育过程中多巴胺能神经元出现困难所致。PD患者通常表现为震颤、不屈服、体位移位和不受约束的进展。PD没有特定的诊断过程。PD因人而异,取决于情况和家族史。磁共振成像(MRI)、计算机断层扫描(CT)、脑超声、正电子发射断层扫描(PET)扫描是诊断这种疾病的常用影像学检查,但这些检查并不是特别有效。在本研究中,对两类数据组-对照组和PD患者进行了多项测试。该数据集收集自帕金森病进展标志物倡议(PPMI)存储库。然后将所选数据组的MRI切片处理成CNN模型。在这项工作中使用了三种不同的卷积神经网络(CNN)架构来从数据组中提取特征。CNN模型为InceptionV3、VGG16和VGG19。在本研究中使用这些模型进行比较,以获得更好的准确性。在这些模型中,VGG19在数据集中表现最好,因为VGG19的准确率为91.5%,VGG16的准确率为88.5%,inceptionV3的准确率为89.5%。
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引用次数: 1
Detection of Modulated Motor Cortex using Anodal and Cathodal TDCS based Neurofeedback 利用基于TDCS的阳极和阴极神经反馈检测调制运动皮层
Pub Date : 2020-10-28 DOI: 10.1109/ICMLC51923.2020.9469038
Zarif Ahmed Chowdhury, Dewan Nahidul Alam, Md. Abu Fattah Hossain Bhuiyan Nahid, Md Anisur Rahman, M. Parvez
Over the centuries, human aimed to achieve the ability to understand the inner functions of the mind and brain. One of the techniques to understand such functions is the application of neurofeedback. Neurofeedback is the procedure which has an influence on physiological brain conditions that takes place by allowing self-regulation of brain activities. Several techniques have been used in the application of neurofeedback to improve different kinds of brain-related conditions including attention capacity and other disabilities. However, literature shows that there are still chances of further improvement in this field, since neurofeedback often causes complications anxiety, discontent and discomfort. Therefore in this paper, we proposed a method to detect modulated motor cortex using anodal and cathodal tDCS based neurofeedback to achieve a better result in the application of neurofeedback. The proposed method showed a higher percentage of accuracy (98.67%) for both anodal and cathodal using Electroencephalography(EEG) based neurofeedback data for twenty subjects. The accuracy of our proposed method is better than three other existing techniques on neurofeedback application. The experimental results demonstrate that our proposed method is suitable in the application of neurofeedback.
几个世纪以来,人类的目标是获得理解心灵和大脑内部功能的能力。理解这些功能的技术之一是应用神经反馈。神经反馈是通过允许大脑活动的自我调节而对大脑生理状况产生影响的过程。在神经反馈的应用中,已经使用了几种技术来改善不同类型的大脑相关疾病,包括注意力和其他残疾。然而,文献表明,在这一领域仍有进一步改善的机会,因为神经反馈经常导致并发症焦虑,不满和不适。因此,本文提出了一种基于tDCS的神经反馈检测调制运动皮层的方法,以获得更好的神经反馈应用效果。采用基于脑电图(EEG)的神经反馈数据,该方法对20名受试者的正确率均达到98.67%。在神经反馈的应用上,我们提出的方法的准确性优于其他三种现有的技术。实验结果表明,该方法适用于神经反馈的应用。
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引用次数: 1
In-House Deep Environmental Sentience for Smart Homecare Solutions Toward Ageing Society 面向老龄化社会的智能家居解决方案的内部深度环境感知
Pub Date : 2020-08-25 DOI: 10.36227/techrxiv.12846563.v1
Philip Easom, A. Bouridane, Feiyu Qiang, Li Zhang, Carolyn Downs, Richard M. Jiang
With an increasing amount of elderly people needing home care around the clock, care workers are not able to keep up with the demand of providing maximum support to those who require it. As medical costs of home care increase the quality is care suffering as a result of staff shortages, a solution is desperately needed to make the valuable care time of these workers more efficient. This paper proposes a system that is able to make use of the deep learning resources currently available to produce a base system that could provide a solution to many of the problems that care homes and staff face today. Transfer learning was conducted on a deep convolutional neural network to recognize common household objects was proposed. This system showed promising results with an accuracy, sensitivity and specificity of 90.6%, 0.90977 and 0.99668 respectively. Real-time applications were also considered, with the system achieving a maximum speed of 19.6 FPS on an MSI GTX 1060 GPU with 4GB of VRAM allocated.
随着越来越多的老人需要全天候在家照顾,护理人员无法满足为有需要的人提供最大限度支持的需求。由于家庭护理的医疗费用增加,由于工作人员短缺,护理质量受到影响,迫切需要一种解决方案,使这些工作人员的宝贵护理时间更有效。本文提出了一个系统,该系统能够利用当前可用的深度学习资源来生成一个基础系统,该系统可以为养老院和工作人员今天面临的许多问题提供解决方案。提出了一种基于深度卷积神经网络的迁移学习方法来识别常见的家庭物品。该系统的准确率为90.6%,灵敏度为0.90977,特异度为0.99668。实时应用也被考虑在内,系统在分配4GB VRAM的MSI GTX 1060 GPU上实现了19.6 FPS的最大速度。
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引用次数: 0
Detection of Brain Tumor and Identification of Tumor Region Using Deep Neural Network On FMRI Images 基于FMRI图像的深度神经网络脑肿瘤检测及肿瘤区域识别
Pub Date : 2020-05-19 DOI: 10.1109/ICMLC51923.2020.9469565
Afsara Mashiat, Reza Rifat Akhlaque, Fahmeda Hasan Fariha, Md. Tanzim Reza, Md Anisur Rahman, M. Parvez
As brain is the most vital organ of the human body, the affects of brain related diseases can be severe. One of the most harmful diseases is brain tumor, which results in a very short life expectancy of the affected patient. Detection of brain tumor is a challenging task in the early stages. Still, with the help of modern technology and machine learning algorithms, it has become a matter of great interest for research. While detecting the brain tumor of an affected person, we are considering the fMRI data of the patient. Our aim is to identify whether the tumor is present in the patient’s brain or not. We use a Convolutional Neural Network(CNN) that is good enough to generate high accuracy. We have used some deeper architecture design VGG16, VGG19, and Inception v3 for better accuracy. Three classification techniques are used namely binary classification, lobe based classification, and position based classification. The main contribution of our proposed work is that we have identified the specific region of the brain where the tumor is located. The region-based classification distinguishes our work from others that are applied on the same dataset. For binary classification, we found approximately 95% accuracy from all the three architectures. Furthermore, we found approximately 78% accuracy for lobe based classification and approximately 97% accuracy for position based classification. The experimental results indicate the superiority of our proposed method in terms of identifying the brain tumor.
由于大脑是人体最重要的器官,大脑相关疾病的影响可能是严重的。最有害的疾病之一是脑肿瘤,它导致患者的预期寿命非常短。脑肿瘤的早期检测是一项具有挑战性的任务。尽管如此,在现代技术和机器学习算法的帮助下,它已经成为一个非常有兴趣的研究问题。在检测患者的脑肿瘤时,我们正在考虑患者的功能磁共振成像数据。我们的目的是确定肿瘤是否存在于病人的大脑中。我们使用卷积神经网络(CNN),它足以产生高准确性。我们已经使用了一些更深层次的体系结构设计VGG16, VGG19和盗梦空间v3,以获得更好的准确性。使用了三种分类技术,即二元分类、基于叶瓣的分类和基于位置的分类。我们提出的工作的主要贡献是我们已经确定了肿瘤所在的大脑特定区域。基于区域的分类将我们的工作与应用于相同数据集的其他人的工作区分开来。对于二元分类,我们发现所有三种体系结构的准确率约为95%。此外,我们发现基于叶瓣的分类准确率约为78%,基于位置的分类准确率约为97%。实验结果表明了该方法在脑肿瘤识别方面的优越性。
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引用次数: 1
Detection of Stress for Visually Impaired People Using EEG Signals Based on Time-Frequency Domain Analysis 基于时频分析的视障人脑电信号压力检测
Pub Date : 2020-05-19 DOI: 10.1109/ICMLC51923.2020.9469562
S. Sultana, Md Anisur Rahman, M. Parvez
Stress refers to body’s physical, emotional and psychological reaction to any environmental change needing adjustment with major impact on human psychology. Stress is specially difficult to manage for visually impaired people (VIP) as they can become easily stressed in unknown situations. Electroencephalogram (EEG) signals can be used to detect stress as it basically represents the ongoing electrical signal changes in human brain. Literature shows that the stress detection techniques are mostly based on either time or frequency domain analysis. However, using either time or frequency domain analysis may not be sufficient to provide appropriate outcome for stress detection. Hence, in this paper a method is proposed using empirical mode decomposition (EMD) and short-term Fourier transform (STFT) are used to extract features considering spatio-temporal information from EEG signals. In the EMD, the signal is first decomposed into intrinsic mode functions (IMFs) representing a finite number of signals while maintaining the time domain and STFT is used to convert time domain to time-frequency domain. Support vector machine (SVM) is applied to classify the stress of VIP in unfamiliar indoor environments. The performance of the proposed method is compared with a state-of-the-art technique for stress detection. The experimental results demonstrate the superiority of the proposed technique over the existing technique.
压力是指人体对任何需要调整的环境变化所产生的生理、情绪和心理反应,对人的心理产生重大影响。对于视障人士(VIP)来说,压力尤其难以管理,因为他们在未知的情况下很容易感到压力。脑电图(EEG)信号可以用来检测压力,因为它基本上代表了人脑中持续的电信号变化。文献表明,应力检测技术大多基于时域或频域分析。然而,使用时域或频域分析可能不足以为应力检测提供适当的结果。为此,本文提出了一种基于经验模态分解(EMD)和短时傅立叶变换(STFT)的脑电信号时空特征提取方法。在EMD中,信号首先被分解为代表有限数量信号的内禀模态函数(IMFs),同时保持时域,并使用STFT将时域转换为时频域。应用支持向量机(SVM)对陌生室内环境下VIP的应力进行分类。该方法的性能与一种最先进的应力检测技术进行了比较。实验结果表明,该方法优于现有方法。
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引用次数: 1
A Deep Learning Based Wearable Healthcare Iot Device for AI-Enabled Hearing Assistance Automation 一种基于深度学习的可穿戴医疗物联网设备,用于人工智能助听器自动化
Pub Date : 2020-05-16 DOI: 10.1109/ICMLC51923.2020.9469537
Fraser Young, Li Zhang, Richard Jiang, Han Liu, Conor Wall
With the recent booming of artificial intelligence (AI), particularly deep learning techniques, digital healthcare is one of the prevalent areas that could gain benefits from AI-enabled functionality. This research presents a novel AI-enabled Internet of Things (IoT) device operating from the ESP-8266 platform capable of assisting those who suffer from impairment of hearing or deafness to communicate with others in conversations. In the proposed solution, a server application is created that leverages Google’s online speech recognition service to convert the received conversations into texts, then deployed to a micro-display attached to the glasses to display the conversation contents to deaf people, to enable and assist conversation as normal with the general population. Furthermore, in order to raise alert of traffic or dangerous scenarios, an ‘urban-emergency’ classifier is developed using a deep learning model, Inception-v4, with transfer learning to detect/recognize alerting/alarming sounds, such as a horn sound or a fire alarm, with texts generated to alert the prospective user. The training of Inception-v4 was carried out on a consumer desktop PC and then implemented into the AI-based IoT application. The empirical results indicate that the developed prototype system achieves an accuracy rate of 92% for sound recognition and classification with real-time performance.
随着最近人工智能(AI)的蓬勃发展,特别是深度学习技术,数字医疗保健是可以从人工智能功能中获益的流行领域之一。这项研究提出了一种新型的人工智能物联网(IoT)设备,该设备在ESP-8266平台上运行,能够帮助听力受损或耳聋的人与他人进行对话交流。在建议的解决方案中,创建了一个服务器应用程序,该应用程序利用谷歌的在线语音识别服务将接收到的对话转换为文本,然后部署到附加在眼镜上的微型显示器上,向聋哑人显示对话内容,以启用和协助与一般人群的正常对话。此外,为了提高对交通或危险场景的警报,使用深度学习模型Inception-v4开发了一个“城市紧急”分类器,通过迁移学习来检测/识别警报/报警声音,如喇叭声或火警,并生成文本来提醒潜在用户。Inception-v4的培训在消费者台式PC上进行,然后实施到基于ai的物联网应用中。实验结果表明,所开发的原型系统对声音的识别和分类准确率达到92%,具有实时性。
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引用次数: 2
3D Printed Brain-Controlled Robot-Arm Prosthetic via Embedded Deep Learning From sEMG Sensors 3D打印脑控机械臂假肢,通过嵌入式深度学习从表面肌电信号传感器
Pub Date : 2020-05-04 DOI: 10.1109/ICMLC51923.2020.9469532
David Lonsdale, Li Zhang, Richard Jiang
In this paper, we present our work on developing robot arm prosthetic via deep learning. Our work proposes to use transfer learning techniques applied to the Google Inception model to retrain the final layer for surface electromyography (sEMG) classification. Data have been collected using the Thalmic Labs Myo Armband and used to generate graph images comprised of 8 subplots per image containing sEMG data captured from 40 data points per sensor, corresponding to the array of 8 sEMG sensors in the armband. Data captured were then classified into four categories (Fist, Thumbs Up, Open Hand, Rest) via using a deep learning model, Inception-v3, with transfer learning to train the model for accurate prediction of each on real-time input of new data. This trained model was then downloaded to the ARM processor based embedding system to enable the brain-controlled robot-arm prosthetic manufactured from our 3D printer. Testing of the functionality of the method, a robotic arm was produced using a 3D printer and off-the-shelf hardware to control it. SSH communication protocols are employed to execute python files hosted on an embedded Raspberry Pi with ARM processors to trigger movement on the robot arm of the predicted gesture.
在本文中,我们介绍了通过深度学习开发机械手臂假肢的工作。我们的工作建议使用应用于Google Inception模型的迁移学习技术来重新训练表面肌电图(sEMG)分类的最后一层。使用Thalmic Labs Myo臂带收集数据,并用于生成由8个子图组成的图形图像,每个图像包含从每个传感器40个数据点捕获的肌电信号数据,对应于臂带中的8个肌电信号传感器阵列。然后,通过使用深度学习模型Inception-v3,将捕获的数据分为四类(拳头、竖起大拇指、张开手、休息),并使用迁移学习来训练模型,以便在实时输入新数据时准确预测每种数据。然后将训练好的模型下载到基于ARM处理器的嵌入系统中,使我们的3D打印机制造的脑控机械臂假肢成为可能。为了测试该方法的功能,使用3D打印机和现成的硬件来控制机械臂。SSH通信协议用于执行托管在带有ARM处理器的嵌入式树莓派上的python文件,以触发预测手势的机械臂上的运动。
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引用次数: 7
期刊
2020 International Conference on Machine Learning and Cybernetics (ICMLC)
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