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2020 IEEE International Conference on Human-Machine Systems (ICHMS)最新文献

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Gait analysis of people relying on mobility aids by using laser range finder 利用激光测距仪分析依靠助行器的人的步态
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209532
Tao Jiang, Yanhong Ge, Wenfeng Li
Gait analysis provides an effective way for the elderly to monitor abnormal gait, predict fall risk, and evaluate rehabilitation training. The laser range finder mounted on the mobility aids is used to analyze gait characteristics in this paper. The leg data segment recognition method based on Kalman filtering and difference measure is proposed to estimate legs position. The system is developed that detects gait cycle by integrating the zero-point constraint and the crests-based detection method and extracts spatiotemporal gait characteristics. The experimental results demonstrate the effectiveness of the methods.
步态分析为老年人异常步态监测、跌倒风险预测、康复训练评价等提供了有效的手段。本文利用安装在助行器上的激光测距仪对步态特性进行了分析。提出了一种基于卡尔曼滤波和差分测度的腿部数据段识别方法来估计腿部位置。该系统将零点约束与基于波峰的检测方法相结合,检测步态周期,提取步态的时空特征。实验结果证明了该方法的有效性。
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引用次数: 0
Thermal comfort management leveraging deep reinforcement learning and human-in-the-loop 热舒适管理利用深度强化学习和人在循环
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209555
F. Cicirelli, A. Guerrieri, C. Mastroianni, G. Spezzano, Andrea Vinci
The design and implementation of effective systems devoted to the thermal comfort management in a building is a challenging task because they require to consider both objective and subjective parameters, tied for instance to human profile and behavior. This paper presents a novel approach for the management of thermal comfort in buildings by leveraging cognitive technologies, namely the Deep Reinforcement Learning paradigm. The approach is able to learn how to automatically control the HVAC system and improve people’s comfort. The learning process is driven by a reward that includes and combines an environmental reward, related to objective environmental parameters, with a human reward, related to subjective human perceptions that are implicitly inferred by the way people interact with the HVAC system. Simulation results aim to assess the impact of the two types of reward on the achieved comfort level.
在建筑中设计和实施有效的热舒适管理系统是一项具有挑战性的任务,因为它们需要考虑客观和主观参数,例如与人的侧面和行为有关。本文提出了一种利用认知技术(即深度强化学习范式)管理建筑热舒适的新方法。该方法能够学习如何自动控制暖通空调系统,提高人们的舒适度。学习过程是由奖励驱动的,这种奖励包括并结合了与客观环境参数相关的环境奖励和与人类主观感知相关的人类奖励,这些感知是通过人们与暖通空调系统互动的方式隐含推断出来的。模拟结果旨在评估两种类型的奖励对达到的舒适度的影响。
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引用次数: 3
An Analytical Target Cascade Mechanism for Smart Configuration of Collaboration Framework in 5G-Based Industrial Parks 5g产业园区协同框架智能配置的目标级联机制分析
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209448
Qiaomei Han, Yanjun Shi, Weiming Shen
With the rapid development of 5G communication technology, various applications of this emerging technology are being developed and deployed in industrial parks. Under a major ongoing project, we are developing a multi-layer collaboration framework to coordinate IoT devices and other resources for the efficient operation of smart factories and the optimal utilization of various resources in industrial parks. This paper focuses on the analytical target cascading mechanism for the smart configuration of this collaboration framework. A virtual industrial park scenario is used to demonstrate the feasibility of the proposed approach.
随着5G通信技术的快速发展,这一新兴技术的各种应用正在工业园区开发和部署。在一个正在进行的重大项目中,我们正在开发一个多层协作框架,以协调物联网设备和其他资源,以实现智能工厂的高效运行和工业园区各种资源的最佳利用。本文重点分析了该协作框架智能配置的目标级联机制。以虚拟工业园区为例,论证了该方法的可行性。
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引用次数: 1
Toward a Standard User-Centered Design Framework for Medical Applications of Brain-Computer Interfaces 面向脑机接口医疗应用的标准用户中心设计框架
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209416
Florencia Garro, Z. McKinney
The brain-computer interface (BCI) field has been growing rapidly, resulting in a wide variety of systems that use different technologies and paradigms to allow interaction between a person and the external world using brain signal responses. The complexity and diversity of BCI-based systems make it difficult to address their usability in a standardized fashion, therefore it is often difficult to correctly identify use-related errors, in order to elaborate robust metrics for improving the system design and to compare it with others. In addition, when a BCI system’s final intended use is a medical application, it must comply with regulatory requirements governing the design process, risk management, and usability assessment in order to be validated and commercialized. Most early-stage BCI designs do not take such requirements into account, which leads to failure in translating functional prototypes into commercial medical devices for further clinical evaluation in advanced stages of the design. This paper proposes a unified framework for usability assessment of BCI design throughout the research and development (R&D) process using a user-centered approach. It focuses on providing a general guideline for BCI for medical applications, considering the risk management process mandatory for medical devices, in which usability is a key aspect for ensuring safety and performance.
脑机接口(BCI)领域一直在迅速发展,产生了各种各样的系统,这些系统使用不同的技术和范式来允许人与外部世界之间使用大脑信号响应进行交互。基于bci的系统的复杂性和多样性使得很难以标准化的方式处理它们的可用性,因此通常很难正确识别与使用相关的错误,以便精心设计用于改进系统设计的健壮度量并将其与其他系统进行比较。此外,当BCI系统的最终预期用途是医疗应用程序时,它必须遵守管理设计过程、风险管理和可用性评估的法规要求,以便进行验证和商业化。大多数早期的脑机接口设计都没有考虑到这些要求,这导致在设计的后期阶段无法将功能原型转化为商业医疗设备以进行进一步的临床评估。本文提出了一个统一的框架,使用以用户为中心的方法在整个研发(R&D)过程中对BCI设计进行可用性评估。它的重点是为医疗应用的BCI提供一般指南,考虑到医疗设备的强制性风险管理流程,其中可用性是确保安全和性能的关键方面。
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引用次数: 6
Tolerance of time delay to the sense of agency for operating electric prosthetic hands: a preliminary experiment with the appearance and gripping action 操作电动假肢手的时间延迟对代理感的容忍度:外观和抓握动作的初步实验
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209358
Ryuichi Furuhashi, Taro Sugihara, Kenji Sato, A. Gofuku
Rehabilitation in patients with phantom limb pain using an electric prosthetic hand is a promising way to mitigate their pain. This method is thought to reconstruct the patient’s sensory-motor loop that connects a command from the brain for a particular movement with the perception that the electric prosthetic hand is actually being driven by this command. A sense of agency (SoA), offered by the feeling that the prosthetic hand is being operated by the patient’s own intentions, is important for this rehabilitation. However, the relationship between characteristics of the prosthetic hand, especially the degree of reproducibility of its appearance and of gripping actions, and the associated SoA is not clear. This study therefore investigated the influence of the reproducibility of gripping action of an electric prosthetic hand and its appearance on participants’ (n = 60) SoA. In advance of adopting patient with phantom limb pain, this study focused on the difference of SoA scores of healthy participants. Significant differences were observed in SoA scores due to the changes in reproducibility of the appearance and gripping action. It is suggested that SoA is more strongly perceived when the prosthetic hand does not strictly resemble a human hand.
使用电动假肢对幻肢疼痛患者进行康复治疗是一种很有前途的减轻疼痛的方法。这种方法被认为是重建病人的感觉-运动回路,将大脑对特定运动的命令与感知连接起来,即电子假手实际上是由这个命令驱动的。一种代理感(SoA),即患者感觉假手是按照自己的意愿操作的,对这种康复很重要。然而,假手的特征,特别是其外观和抓握动作的可重复性程度与相关SoA之间的关系尚不清楚。因此,本研究调查了电动假手抓握动作的再现性及其外观对参与者(n = 60) SoA的影响。在采用幻肢痛患者之前,本研究主要关注健康参与者的SoA评分差异。由于外观和抓握动作的可重复性的变化,在SoA分数中观察到显着差异。这表明,当假手不完全像人的手时,SoA更容易被感知。
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引用次数: 1
Invulnerability Analysis of Wireless Sensor Networks based on Cellular Automata 基于元胞自动机的无线传感器网络抗毁性分析
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209541
Xiuwen Fu, Xiaolin He, Yongsheng Yang
Network invulnerability is widely considered as one of the main bottlenecks restricting the widespread application of wireless sensor networks (WSNs). Therefore, in this work, we present a 2-D cellular automata model to mimic the failure process of WSNs. In this model, we consider five failure events of sensor nodes (i.e., energy exhaustion, hardware/software malfunctions, intentional attacks, random attacks and isolation from the sink node). The experimental results have shown that the invulnerability of WSNs under random attacks is better than that under intentional attacks. In addition, through composition analysis of failed sensor nodes, we observe that energy exhaustion is mainly responsible for node failures in the case of random attacks. Isolation from the sink node is the main cause of node failures under intentional attacks. The obtained results can provide theoretical guidance to build a more invulnerable WSN.
网络的不脆弱性被广泛认为是制约无线传感器网络广泛应用的主要瓶颈之一。因此,在这项工作中,我们提出了一个二维元胞自动机模型来模拟无线传感器网络的失效过程。在该模型中,我们考虑了传感器节点的五种故障事件(即能量耗尽、硬件/软件故障、故意攻击、随机攻击和与汇聚节点的隔离)。实验结果表明,无线传感器网络在随机攻击下的抗毁性优于故意攻击。此外,通过对失效传感器节点的组成分析,我们发现在随机攻击情况下,能量耗尽是导致节点失效的主要原因。与汇聚节点的隔离是节点遭受故意攻击失败的主要原因。所得结果可为构建更加无懈可击的无线传感器网络提供理论指导。
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引用次数: 1
EMG-based Abnormal Gait Detection and Recognition 基于肌电图的异常步态检测与识别
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209449
Yao Guo, Raffaele Gravina, Xiao Gu, G. Fortino, Guang-Zhong Yang
The early detection of gait abnormalities plays a key role in medical applications, where most of the previous abnormal gait recognition methods rely on kinematic data captured with vision-based systems or wearable inertial sensors. This paper, conversely, puts forward the ambitious objective to employ multiple wearable Electromyography (EMG) sensors for gait abnormalities detection. Our proposed approach uses eight wireless EMG sensors attached with skin electrodes on four muscles (i.e., Tibialis Anterior, Peroneus Longus, Gas-trocnemius, and Rectus Femoris) per each leg to measure the muscle response during walking activity. In the recognition stage, both meta-features with SVM and Bidirectional Long Short-Term Machine (BiLSTM) are exploited for gait abnormalities recognition from raw EMG data, Discrete Wavelet Transform (DWT) coefficients, and the reconstructed EMG signals, respectively. Experimental results on our gait dataset demonstrate the efficacy of EMG-based abnormal gait detection and recognition.
步态异常的早期检测在医疗应用中起着关键作用,其中大多数先前的异常步态识别方法依赖于基于视觉系统或可穿戴惯性传感器捕获的运动学数据。相反,本文提出了一个雄心勃勃的目标,即使用多个可穿戴式肌电(EMG)传感器来检测步态异常。我们提出的方法是在每条腿的四块肌肉(即胫骨前肌、腓骨长肌、气股肌和股直肌)上安装八个无线肌电图传感器,并连接皮肤电极,以测量行走活动时的肌肉反应。在识别阶段,分别利用支持向量机元特征和双向长短期机元特征对原始肌电信号、离散小波变换(DWT)系数和重构肌电信号进行步态异常识别。在步态数据集上的实验结果证明了基于肌电图的异常步态检测和识别的有效性。
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引用次数: 12
Towards an Adaptive Assistance System for Monitoring Tasks: Assessing Mental Workload using Eye-Tracking and Performance Measures 面向任务监测的自适应辅助系统:使用眼动追踪和性能测量评估心理工作量
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209435
Victoria Buchholz, S. Kopp
With the introduction of more and more autonomous machines into the work environment, the role of a worker changes from the sole executor of a task to the observer and supervisor of a system that carries out tasks on her behalf. Often, the transparency and predictability of these systems decrease, making it difficult to comprehend underlying processes for the worker. Moreover, monitoring tasks can impose different levels of workload on the human operator leading to an increased risk of making serious errors. The present research aims at developing an adaptive assistance system for these types of tasks that is able to monitor a worker’s current level of mental workload and provides support without reducing the worker’s autonomy and sense of responsibility. We report results of an experiment using a monitoring task incorporating repeated event sequences to simulate underlying workings of a complex system. Results show that performance in connection with eye-tracking measures are suitable indicators of the level of mental workload and that making the worker aware of underlying structures may reduce workload. Further steps towards an adaptive assistance system for monitoring tasks are discussed.
随着越来越多的自动机器进入工作环境,工人的角色从任务的唯一执行者转变为代表她执行任务的系统的观察者和监督者。通常,这些系统的透明度和可预测性会降低,使得工作人员很难理解潜在的过程。此外,监控任务可能会给人工操作员施加不同级别的工作量,从而增加犯严重错误的风险。目前的研究旨在为这些类型的任务开发一种适应性辅助系统,该系统能够监测工人当前的精神工作量水平,并在不降低工人的自主性和责任感的情况下提供支持。我们报告了一项实验的结果,该实验使用监测任务结合重复事件序列来模拟复杂系统的潜在工作。结果表明,与眼球追踪测量相关的表现是心理工作量水平的合适指标,让工人意识到潜在的结构可能会减少工作量。讨论了建立监测任务自适应辅助系统的进一步步骤。
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引用次数: 2
Functional Connectivity Analysis by Trial in a Working Memory Task 工作记忆任务的功能连通性试验分析
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209457
S. D'amico, Giovanna Stella, S. Gagliano, M. Bucolo, R. Roche
To identify neuroanatomical abnormalities in the brains of people with psychosis, schizophrenia or children experiencing PLEs have been detected atypical activity levels in specific brain regions using fMRI or event-related potentials analysis. Both of these approaches suffer from drawbacks. In this study using EEG signals, the method implemented surpasses the limitations of both. The proposed method combines advanced signal processing, in time and frequency domain, with graph analysis and evaluates the inference across subjects. The first part of the procedure consists of a data preparation phase and of a data analysis phase, based on functional connectivity evaluation using the peak correlation methods. The second part takes into account parametric and topological aspects of the brain network, extracted by the brain connectivity and the graph analysis, obtaining robust and clinically relevant information.
为了确定精神病患者、精神分裂症患者或经历ple的儿童大脑中的神经解剖学异常,已经使用功能磁共振成像或事件相关电位分析检测到特定大脑区域的非典型活动水平。这两种方法都有缺点。在使用脑电图信号的研究中,所实现的方法超越了两者的局限性。该方法将时域和频域的高级信号处理与图分析相结合,并对跨学科的推理进行评估。该过程的第一部分包括数据准备阶段和数据分析阶段,基于使用峰值相关方法的功能连通性评估。第二部分考虑脑网络的参数和拓扑方面,通过脑连接和图分析提取,获得鲁棒性和临床相关的信息。
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引用次数: 0
Head-mounted, wireless eyetracker for real-time gaze prediction utilizing machine-learning 头戴式无线眼动仪,利用机器学习进行实时凝视预测
Pub Date : 2020-09-01 DOI: 10.1109/ICHMS49158.2020.9209326
Viola Ildikó Matusz, Melinda Rácz, János Rokai, Nikomidisz Eftimiu Jorgosz, Tímea Molnár, Dorina Maráki, I. Ulbert, G. Márton
Eyetracking opens new possibilities for people with physical disabilities, enabling them to explore new ways of communication and interaction with their environment. However, this field of assistive technology is not available to everyone in need and still faces substantial obstacles: high-cost devices for use in real-world environments, difficulty in enhancing the performance of a calibrated system, difficulty in providing a personalized, adaptive setup. The aim of this work is to provide a lightweight, low cost, wireless device with a software performing real-time 2-D gaze prediction in a fixed coordinate system, and the possibility of enhancing performance by recalibration.
眼动追踪为身体残疾人士开辟了新的可能性,使他们能够探索与环境沟通和互动的新方式。然而,这一辅助技术领域并不是每个有需要的人都可以使用,并且仍然面临着重大障碍:在现实环境中使用的高成本设备,难以提高校准系统的性能,难以提供个性化的自适应设置。这项工作的目的是提供一种轻量级、低成本的无线设备,该设备带有在固定坐标系中执行实时二维凝视预测的软件,并有可能通过重新校准来提高性能。
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引用次数: 0
期刊
2020 IEEE International Conference on Human-Machine Systems (ICHMS)
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