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2021 IEEE International Conference on Autonomous Systems (ICAS)最新文献

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River Flow Path Control With Reinforcement Learning 河道路径控制与强化学习
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551113
Dongqi Liu, Yutaka Naito, Chen Zhang, S. Muramatsu, H. Yasuda, Kiyoshi Hayasaka, Y. Otake
In this study, a cyber-physical system (CPS) for river flow path control is proposed using reinforcement learning. Recently, there has been a frequent occurrence of river flooding due to heavy rains, resulting in serious economic losses and victims. One cause of river flooding is the meandering due to the river bed growing and flow path change. As a mean of avoiding the meandering, river groynes can be used to regularize the flow. However, the mechanism of the flow path growing, and its optimal control is unclear. Therefore, in this study, a dynamic flow path control system is proposed using a data-driven approach to solve the problem at once. As a data-driven approach, reinforcement learning is adopted. The proposed system is designed to control meandering by adaptively deforming and moving the groynes with the reward of the flow path health. The effectiveness of the proposed flow path control system is verified through a simulation of the river model.
本文提出了一种基于强化学习的信息物理控制系统(CPS)。近年来,由于暴雨导致的河流洪水频繁发生,造成了严重的经济损失和人员伤亡。河流泛滥的原因之一是河床的生长和流道的改变所造成的曲流。作为避免曲流的一种手段,河沟可以用来调节水流。然而,流路增长的机制及其最优控制尚不清楚。因此,本研究提出了一种采用数据驱动方法的动态流路控制系统,可以一次性解决这一问题。作为一种数据驱动的方法,采用了强化学习。该系统通过自适应地变形和移动流道,并以流道健康度作为奖励来控制流道。通过对河流模型的仿真,验证了所提出的流道控制系统的有效性。
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引用次数: 2
Information-Bottleneck-Based Behavior Representation Learning for Multi-Agent Reinforcement Learning 基于信息瓶颈的多智能体强化学习行为表示学习
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551171
Yue Jin, Shuangqing Wei, Jian Yuan, Xudong Zhang
In multi-agent deep reinforcement learning, extracting sufficient and compact information of other agents is critical to attain efficient convergence and scalability of an algorithm. In canonical frameworks, distilling of such information is often done in an implicit and uninterpretable manner, or explicitly with cost functions not able to reflect the relationship between information compression and utility in representation. In this paper, we present Information-Bottleneck-based Other agents’ behavior Representation learning for Multi-agent reinforcement learning (IBORM) to explicitly seek low-dimensional mapping encoder through which a compact and informative representation relevant to other agents’ behaviors is established. IBORM leverages the information bottleneck principle to compress observation information, while retaining sufficient information relevant to other agents’ behaviors used for cooperation decision. Empirical results have demonstrated that IBORM delivers the fastest convergence rate and the best performance of the learned policies, as compared with implicit behavior representation learning and explicit behavior representation learning without explicitly considering information compression and utility.
在多智能体深度强化学习中,提取其他智能体的充分而紧凑的信息是实现算法高效收敛和可扩展性的关键。在规范框架中,这些信息的提取通常以隐式和不可解释的方式完成,或者明确地使用无法反映信息压缩与表示中的实用程序之间关系的成本函数。本文提出了基于信息瓶颈的多智能体强化学习(IBORM)中其他智能体行为表示学习,明确地寻找低维映射编码器,通过该编码器建立与其他智能体行为相关的紧凑且信息丰富的表示。IBORM利用信息瓶颈原理压缩观测信息,同时保留足够的与其他agent行为相关的信息,用于合作决策。实证结果表明,在不明确考虑信息压缩和效用的情况下,与内隐行为表示学习和显式行为表示学习相比,IBORM具有最快的收敛速度和最佳的学习策略性能。
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引用次数: 1
A Classical Machine Learning Approach For Emg-Based Lower Limb Intention Detection For Human-Robot Interaction Systems 基于脑电信号的人机交互系统下肢意图检测的经典机器学习方法
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551190
Hasti Khiabani, M. Ahmadi
Surface Electromyography (sEMG)-based intention-detection systems of lower limb can intelligently augment human- robot interaction (HRI) systems to detect subject’s walking direction prior-to or during walking. Ten Subject-Exclusive (Subj-Ex) and Generalized (Gen) Classical Machine Learning (C-ML)-based models are employed to detect direction intentions and evaluate inter-subject robustness in one knee/foot- gesture and three walking-related scenarios. In each, sEMG signals are collected from eight muscles of nine subjects during at least nine distinct gestures/activities. Linear Discriminant Analysis (LDA) and Random Forest (RF) classifiers, applied to the Time-Domain (TD) feature set (of the four input sets), provided the best accuracy. Subj-Ex approach achieves the highest prediction accuracy, facing occasional competition from the Gen approach. In knee/foot gesture scenario, LDA reaches an accuracy of 91.67%, signifying its applicability to robotic-assisted walking, prosthetics, and orthotics. The overall prediction accuracy among walking- related scenarios, though not as remarkably high as in the knee/foot gesture recognition scenario, can reach up to 75%.
基于表面肌电图(sEMG)的下肢意图检测系统可以智能地增强人-机器人交互(HRI)系统,以检测受试者在行走前或行走过程中的行走方向。采用10个基于主体排他(subject - ex)和广义(Gen)经典机器学习(C-ML)的模型来检测方向意图并评估一个膝关节/足部手势和三个步行相关场景的主体间鲁棒性。在每个实验中,从9个受试者的8块肌肉中收集至少9种不同的手势/活动的表面肌电信号。线性判别分析(LDA)和随机森林(RF)分类器应用于时域(TD)特征集(四个输入集),提供了最好的准确性。subject - ex方法达到了最高的预测精度,但偶尔会面临来自Gen方法的竞争。在膝关节/足部手势场景中,LDA的准确率达到91.67%,表明其适用于机器人辅助行走、假肢和矫形器。在与行走相关的场景中,总体预测准确率虽然没有膝盖/脚手势识别场景那么高,但可以达到75%。
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引用次数: 2
On Future Development of Autonomous Systems: A Report of the Plenary Panel at IEEE ICAS’21 关于自主系统的未来发展:IEEE ICAS ' 21全体小组报告
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551188
Yingxu Wang, I. Pitas, K. Plataniotis, C. Regazzoni, Brian M. Sadler, A. Roy-Chowdhury, Ming Hou, Arash Mohammadi, L. Marcenaro, Farokh Atashzar, S. alZahir
Autonomous Systems (AS) are perceived as the most advanced intelligent systems evolved from those of reflexive, imperative, and adaptive intelligence. A plenary panel on “Future Development of Autonomous Systems” is organized at the inaugural IEEE ICAS’21. This paper reports the panel discussions about the-state-of-the-art and paradigms of AS, the basic research on theoretical foundations and mathematical means of AS, and challenges to the future development of AS. As an emerging and increasingly demanded field, AS provide an unprecedented approach to contemporary intelligent industries including deep machine learning, highly intelligent robotics, cognitive computers, general AI technologies, and industrial applications enabled by transdisciplinary advances in intelligence science, system science, brain science, cognitive science, robotics, computational intelligence, and intelligent mathematics.
自治系统(AS)被认为是由反射性、命令性和适应性智能进化而来的最先进的智能系统。在首届IEEE ICAS ' 21上组织了一个关于“自主系统的未来发展”的全体会议小组。本文介绍了AS的发展现状和范式、AS的理论基础和数学方法的基础研究以及AS未来发展面临的挑战。作为一个新兴且需求日益增长的领域,As为当代智能产业提供了前所未有的途径,包括深度机器学习、高度智能机器人、认知计算机、通用人工智能技术,以及智能科学、系统科学、脑科学、认知科学、机器人、计算智能和智能数学等跨学科进展的工业应用。
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引用次数: 9
Real-Time Learning for THZ Radar Mapping and UAV Control 太赫兹雷达测绘与无人机控制的实时学习
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551141
Anna Guerra, Francesco Guidi, D. Dardari, P. Djurić
In this paper we consider a joint detection, mapping and navigation problem by an unmanned aerial vehicle (UAV) with real-time learning capabilities. We formulate this problem as a Markov decision process (MDP), where the UAV is equipped with a THz radar capable to electronically scan the environment with high accuracy and to infer its probabilistic occupancy map. The navigation task amounts to maximizing the desired mapping accuracy and coverage and to decide whether targets (e.g., people carrying radio devices) are present or not. With the numerical results, we analyze the robustness of the considered Q-learning algorithm, and we discuss practical applications.
本文研究了具有实时学习能力的无人机的联合探测、测绘和导航问题。我们将此问题描述为马尔可夫决策过程(MDP),其中无人机配备了能够以高精度电子扫描环境并推断其概率占用图的太赫兹雷达。导航任务相当于最大限度地提高所需的测绘精度和覆盖范围,并确定目标(例如,携带无线电设备的人)是否存在。结合数值结果,分析了所考虑的q -学习算法的鲁棒性,并讨论了实际应用。
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引用次数: 7
Thermal Face Image Generator 热人脸图像发生器
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551148
X. Cao, K. Lai, S. Yanushkevich, M. Smith
This work addresses two image-to-image translation tasks. The first task is to convert a visible face image into a thermal face image (V2T) and the second task is to convert a thermal face image into another thermal face image with a given target temperature (T2T). We propose to use conditional generative adversarial networks to solve the two tasks. We train our models using Carl and SpeakingFaces Datasets, and use SSIM to measure the performance of our models. The SSIM of the generated thermal images reach 0.82 and 0.84 for the V2T and T2T tasks respectively.
这项工作解决了两个图像到图像的翻译任务。第一个任务是将可见人脸图像转换为热人脸图像(V2T),第二个任务是将热人脸图像转换为具有给定目标温度的另一热人脸图像(T2T)。我们建议使用条件生成对抗网络来解决这两个任务。我们使用Carl和SpeakingFaces数据集训练我们的模型,并使用SSIM来衡量我们模型的性能。V2T和T2T任务生成的热图像SSIM分别达到0.82和0.84。
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引用次数: 2
Improving a User’s Haptic Perceptual Sensitivity by Optimizing Effective Manipulability of a Redundant User Interface 通过优化冗余用户界面的有效可操作性来提高用户的触觉感知灵敏度
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551140
Teng Li, A. Torabi, Hongjun Xing, M. Tavakoli
Human perceptual sensitivity of various types of forces, e.g., stiffness and friction, is important for surgeons during robotic surgeries such as needle insertion and palpation. However, force feedback from robot end-effector is usually a combination of desired and undesired force components which could have an effect on the perceptual sensitivity of the desired one. In presence of undesired forces, to improve perceptual sensitivity of desired force could benefit robotic surgical outcomes. In this paper, we investigate how users’ perceptual sensitivity of friction and stiffness can be improved by taking advantage of kinematic redundancy of a user interface. Experimental results indicated that the perceptual sensitivity of both friction and stiffness can be significantly improved by maximizing the effective manipulability of the redundant user interface in its null space. The positive results provide a promising perspective to enhance surgeons’ haptic perceptual ability by making use of the robot redundancy.
人类对各种力的感知敏感性,例如刚度和摩擦力,对于外科医生在机器人手术中(如针头插入和触诊)是很重要的。然而,来自机器人末端执行器的力反馈通常是期望力分量和不期望力分量的组合,这可能会影响期望力的感知灵敏度。在不期望力存在的情况下,提高期望力的感知灵敏度可以提高机器人的手术效果。在本文中,我们研究了如何利用用户界面的运动冗余来提高用户对摩擦和刚度的感知灵敏度。实验结果表明,通过最大化冗余用户界面在零空间的有效可操纵性,可以显著提高摩擦和刚度的感知灵敏度。这些积极的结果为利用机器人冗余来提高外科医生的触觉感知能力提供了一个有希望的前景。
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引用次数: 0
Towards Explainable Semantic Segmentation for Autonomous Driving Systems by Multi-Scale Variational Attention 基于多尺度变分关注的自动驾驶系统可解释语义分割研究
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551172
Mohanad Abukmeil, A. Genovese, V. Piuri, F. Rundo, F. Scotti
Explainable autonomous driving systems (EADS) are emerging recently as a combination of explainable artificial intelligence (XAI) and vehicular automation (VA). EADS explains events, ambient environments, and engine operations of an autonomous driving vehicular, and it also delivers explainable results in an orderly manner. Explainable semantic segmentation (ESS) plays an essential role in building EADS, where it offers visual attention that helps the drivers to be aware of the ambient objects irrespective if they are roads, pedestrians, animals, or other objects. In this paper, we propose the first ESS model for EADS based on the variational autoencoder (VAE), and it uses the multiscale second-order derivatives between the latent space and the encoder layers to capture the curvatures of the neurons’ responses. Our model is termed as Mgrad2 VAE and is bench-marked on the SYNTHIA and A2D2 datasets, where it outperforms the recent models in terms of image segmentation metrics.
最近,可解释的自动驾驶系统(EADS)作为可解释的人工智能(XAI)和车辆自动化(VA)的结合出现了。EADS解释了自动驾驶车辆的事件、环境和发动机运行情况,并以有序的方式提供了可解释的结果。可解释语义分割(ESS)在构建EADS中起着至关重要的作用,它提供视觉注意力,帮助驾驶员意识到周围的物体,无论它们是道路、行人、动物还是其他物体。本文提出了基于变分自编码器(VAE)的第一个EADS ESS模型,该模型利用隐空间和编码器层之间的多尺度二阶导数来捕捉神经元响应的曲率。我们的模型被称为Mgrad2 VAE,并在SYNTHIA和A2D2数据集上进行基准测试,在图像分割指标方面优于最近的模型。
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引用次数: 4
An Autonomous Semantic Learning Methodology for Fake News Recognition 用于识别假新闻的自主语义学习方法
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551115
Yingxu Wang, James Y. Xu
A persistent challenge to AI theories and technologies is fake news recognition which demands not only syntactic analyses of language expressions, but also their semantics comprehension. This work presents an autonomous system for fake news recognition based on a novel approach of machine semantic learning. A training-free machine learning algorithm of Differential Sentence Semantic Analyses (DSSA) is designed and implemented for fake news detection. A large set of 876 experiments randomly selected from DataCup’ 19 has demonstrated a level of 70.4% accuracy that outperforms the traditional data-driven neural network technologies normally projected at the accuracy level of 55.0%. The DSSA methodology paves a way towards autonomous, training-free, and real-time trustworthy technologies for machine knowledge learning and semantics composition.
假新闻识别是人工智能理论和技术面临的一个长期挑战,它不仅要求对语言表达进行句法分析,还要求理解其语义。这项工作提出了一种基于机器语义学习新方法的假新闻自主识别系统。为假新闻检测设计并实现了一种无需训练的差分句子语义分析(DSSA)机器学习算法。从 DataCup' 19 中随机选取的 876 个大型实验表明,该算法的准确率高达 70.4%,超过了传统数据驱动神经网络技术通常预计的 55.0% 的准确率水平。DSSA 方法学为机器知识学习和语义合成铺平了一条通往自主、免训练和实时可信技术的道路。
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引用次数: 1
Trustworthy Adaptation with Few-Shot Learning for Hand Gesture Recognition 基于少镜头学习的可信自适应手势识别
Pub Date : 2021-08-11 DOI: 10.1109/ICAS49788.2021.9551144
E. Rahimian, Soheil Zabihi, A. Asif, S. F. Atashzar, Arash Mohammadi
This work is motivated by potentials of Deep Neural Networks (DNNs)-based solutions in improving myoelectric control for trustworthy Human-Machine Interfacing (HMI). In this context, we propose the Trustworthy Few Shot-Hand Gesture Recognition (TFS-HGR) framework as a novel DNN-based architecture for performing Hand Gesture Recognition (HGR) via multi-channel surface Electromyography (sEMG) signals. The main objective of the TFS-HGR framework is to employ Few-Shot Learning (FSL) formulation with a focus on transferring information and knowledge between source and target domains (despite their inherit differences) to address limited availability of training data. The NinaPro DB5 dataset is used for evaluation purposes. The proposed TFS-HGR achieves a performance of 83.17% for new repetitions with few-shot observations, i.e., 5-way 10-shot classification. Moreover, the TFS-HGR with the accuracy of 75.29% also generalize to new gestures with few-shot observations, i.e., 5-way 10-shot classification.
这项工作的动机是基于深度神经网络(dnn)的解决方案在改善可信人机界面(HMI)的肌电控制方面的潜力。在这种背景下,我们提出了可信的少数短手手势识别(TFS-HGR)框架,作为一种新的基于dnn的架构,通过多通道表面肌电信号(sEMG)执行手势识别(HGR)。TFS-HGR框架的主要目标是采用Few-Shot Learning (FSL)公式,重点是在源域和目标域之间传递信息和知识(尽管它们存在继承差异),以解决训练数据的有限可用性。NinaPro DB5数据集用于评估目的。本文提出的TFS-HGR算法对于新重复的少次观测,即5-way 10-shot分类,达到了83.17%的性能。此外,准确率为75.29%的TFS-HGR还可以推广到较少镜头观察的新手势,即5-way 10-shot分类。
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引用次数: 5
期刊
2021 IEEE International Conference on Autonomous Systems (ICAS)
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