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2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)最新文献

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Analyzing Risky Behavior in Traffic Accidents 交通事故中的危险行为分析
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283330
Mayank Chaudhari, S. Sarkar, Divyasheel Sharma
Among all the transportation systems that people use, the public traffic-ways are most common and dangerous resulting in a significant number of fatalities per day worldwide. Statistics have shown that the mortality rates related to traffic accident are more among youth. Although various road safety strategies and rules are developed by the government and law-enforcement agencies to combat the situation, these methods mainly target design, operation, and usability of traffic-ways. Most of the recent data-driven analysis papers model the traffic patterns or predict accidents from the past data. In this paper, we consider a comprehensive, year long fatality analysis reporting system (FARS) data to analyze the role of various factors related to humans, weather and physical conditions (e.g., road surface, light condition etc.) involved in traffic accidents. We build an intelligent risk prediction model that can help decision-makers to ensure road safety. The proposed model estimates (i.) the accident risk over a future time frame, and (ii.) the risk associated with the drivers present on the traffic-way based on the driver’s behavior, history, environmental conditions and physical conditions related to traffic-way.
在人们使用的所有交通系统中,公共交通方式是最常见和最危险的,每天在世界范围内造成大量死亡。统计数据表明,与交通事故有关的死亡率在青少年中较高。尽管政府和执法机构制定了各种道路安全战略和规则来应对这种情况,但这些方法主要针对交通道路的设计、运营和可用性。最近大多数数据驱动的分析论文都是根据过去的数据建立交通模式模型或预测事故。在本文中,我们考虑了一个全面的、长达一年的死亡分析报告系统(FARS)数据,以分析与人类、天气和物理条件(如路面、光照条件等)相关的各种因素在交通事故中的作用。我们建立了智能风险预测模型,可以帮助决策者确保道路安全。该模型根据驾驶员的行为、历史、环境条件和与交通道路相关的物理条件,估计(i)未来时间框架内的事故风险,以及(ii)与交通道路上的驾驶员相关的风险。
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引用次数: 1
Effectiveness of neural language models for word prediction of textual mammography reports 神经语言模型对文本乳房x光检查报告词预测的有效性
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283304
Mihai David Marin, Elena Mocanu, C. Seifert
Radiologists are required to write free paper text reports for breast screenings in order to assign cancer diagnoses in a later step. The current procedure requires considerable time and needs efficiency. In this paper, to streamline the writing process and keep up with the specific vocabulary, a word prediction tool using neural language models was developed. Consequently, challenges as different languages (English, Dutch), small data sizes and low computational power have been overcome by introducing a novel English-Dutch Radiology Language Modelling process. After defining model architectures, the process involves data preparation, bilevel hyperparameters optimization, configuration transfer and evaluation. The model is able to improve the current workflow and successfully meet the computational constraints, based on both an intrinsic and extrinsic evaluation. Given its flexibility, the model opens the door for future research involving other languages and also an extensive set of real-world applications.
放射科医生被要求为乳房筛查编写免费的纸质文本报告,以便在稍后的步骤中分配癌症诊断。目前的程序需要相当的时间和效率。为了简化写作过程并跟上特定的词汇量,本文开发了一个基于神经语言模型的单词预测工具。因此,通过引入一种新颖的英荷放射学语言建模过程,克服了不同语言(英语、荷兰语)、小数据量和低计算能力的挑战。在定义模型体系结构之后,该过程包括数据准备、双层超参数优化、配置传递和评估。该模型能够改进当前的工作流程,并成功地满足计算约束,基于内在和外在的评估。鉴于其灵活性,该模型为未来涉及其他语言的研究以及广泛的现实应用程序打开了大门。
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引用次数: 1
Preliminary Investigation of Visual Information Influencing Driver’s Steering Control based on CNN 基于CNN的视觉信息对驾驶员转向控制的影响初探
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283290
Yuki Okafuji, Toshihito Sugiura, T. Wada
Understanding the relationship between driving behavior and visual information is an important issue in order to understand driving behavior holistically. In this study, we constructed a driver model that reproduces the driver’s steering behavior from visual information based on the Convolutional Neural Network (CNN) with human physical characteristics. We obtained the driving behavior in a simulator study to train the proposed CNN model. Which region in the visual field influencing drivers’ steering behavior was analyzed using the results of the feature maps generated by the trained CNN model and the driver’s gaze behavior. The results indicate that the drivers perform steering action using the information within 20 degrees from the gaze point.
理解驾驶行为与视觉信息之间的关系是全面理解驾驶行为的一个重要问题。在这项研究中,我们构建了一个基于卷积神经网络(CNN)的驾驶员模型,该模型从视觉信息中再现驾驶员的转向行为,并具有人类的身体特征。我们在模拟器研究中获得了驾驶行为,以训练所提出的CNN模型。利用训练后的CNN模型生成的特征图和驾驶员注视行为的结果,分析视野中哪些区域影响驾驶员的转向行为。结果表明,驾驶员在距注视点20度范围内使用信息进行转向操作。
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引用次数: 1
Design and Characterization of low frequency Capacitive Micromachined Ultrasonic Transducer (CMUT) 低频电容式微机械超声换能器(CMUT)的设计与表征
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9282903
Mayank B. Thacker, D. Buchanan
The CMUT devices presented in this paper were fabricated using a commercially available MEMSCAPs PolyMUMPs process. The moveable membrane evolves from the available single layer polysilicon. COMSOL simulations were used to model and investigate the effects of a 140 μm and 105 μm radius membranes that are 1.5 μm and 2 μm thick respectively. The results for two different structures designed to operate below 350 kHz are demonstrated in this work. Simulations show that both the devices presented show displacement of over 40 nm. The device snap shut was observed beyond 40 V. This frequency range is suitable to have high SNR and accurate distance measurements. Reducing the size of CMUT devices for the proposed frequency range was a challenge, sorted in this paper. A device capable to generate ultrasound close to 50kHZ is also presented.
本文介绍的CMUT器件是使用市售MEMSCAPs PolyMUMPs工艺制造的。可移动膜是从现有的单层多晶硅发展而来的。采用COMSOL模拟方法,对半径为140 μm、厚度为1.5 μm和2 μm的薄膜进行了模拟和研究。本文展示了两种不同的结构在350 kHz以下工作的结果。仿真结果表明,两种器件的位移均大于40 nm。当电压超过40 V时,观察到器件突然关闭。该频率范围适用于高信噪比和精确的距离测量。在提出的频率范围内减小CMUT设备的尺寸是一个挑战,本文对此进行了分类。本文还介绍了一种能够产生接近50kHZ超声波的装置。
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引用次数: 3
Robust Vaccination Strategy based on Dynamic Game for Uncertain SIR Time-Delay Model 基于动态博弈的不确定SIR时滞模型鲁棒疫苗接种策略
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283389
Hiroya Kikuchi, H. Mukaidani, Ramasamy Saravanakumar, W. Zhuang
In this paper, a robust Pareto suboptimal strategy for an uncertain susceptible-infected-recovered (SIR) model with state delay is investigated, based on the static output feedback (SOF). After linearizing the original nonlinear SIR model, a sufficient condition for the existence of a proposed strategy set is derived in terms of high-order cross-coupled matrix equations (HCMEs). Using the guaranteed cost control technique, both robust stability and existence of the cost bound are attained. To avoid high complexity of directly solving the HCMEs, a recursive algorithm based on the linear matrix inequality (LMI) is presented. Finally, a practical SIR time-delay model is used to demonstrate the effectiveness and reliability of the proposed strategy.
本文基于静态输出反馈(SOF),研究了具有状态延迟的不确定敏感-感染-恢复(SIR)模型的鲁棒Pareto次优策略。在对原始的非线性SIR模型进行线性化之后,用高阶交叉耦合矩阵方程(HCMEs)的形式导出了策略集存在的充分条件。利用保证成本控制技术,既保证了系统的鲁棒稳定性,又保证了系统成本界的存在性。为了避免直接求解HCMEs的高复杂度,提出了一种基于线性矩阵不等式的递归算法。最后,通过一个实际的SIR时延模型验证了所提策略的有效性和可靠性。
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引用次数: 2
Population Size Specification for Fair Comparison of Multi-objective Evolutionary Algorithms 多目标进化算法公平比较的种群大小规范
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9282850
H. Ishibuchi, Lie Meng Pang, Ke Shang
In general, performance comparison results of optimization algorithms depend on the parameter specifications in each algorithm. For fair comparison, it may be needed to use the best specifications for each algorithm instead of using the same specifications for all algorithms. This is because each algorithm has its best specifications. However, in the evolutionary multi-objective optimization (EMO) field, performance comparison has usually been performed under the same parameter specifications for all algorithms. Especially, the same population size has always been used. In this paper, we discuss this practice from a viewpoint of fair comparison of EMO algorithms. First, we demonstrate that performance comparison results depend on the population size. Next, we explain a new trend of performance comparison where each algorithm is evaluated by selecting a pre-specified number of solutions from the examined solutions (i.e., by selecting a solution subset with a pre-specified size). Then, we discuss the selected subset size specification. Through computational experiments, we show that performance comparison results do not strongly depend on the selected subset size while they depend on the population size.
通常,优化算法的性能比较结果取决于每种算法的参数规范。为了公平比较,可能需要对每个算法使用最佳规范,而不是对所有算法使用相同的规范。这是因为每种算法都有其最佳规范。然而,在进化多目标优化(EMO)领域,通常在相同的参数规范下对所有算法进行性能比较。特别是,一直使用相同的人口规模。在本文中,我们从EMO算法的公平比较的观点来讨论这一实践。首先,我们证明了性能比较结果取决于人口规模。接下来,我们解释了性能比较的新趋势,其中通过从检查的解决方案中选择预先指定数量的解决方案来评估每个算法(即,通过选择具有预先指定大小的解决方案子集)。然后,我们讨论选择的子集大小规范。通过计算实验,我们表明性能比较结果不依赖于所选择的子集大小,而依赖于总体大小。
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引用次数: 1
Evolutionary Generative Contribution Mappings 进化生成贡献映射
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283014
Masayuki Kobayashi, Satoshi Arai, T. Nagao
Although convolutional neural networks (CNNs) have significantly evolved and demonstrated outstanding performance, their uninterpretable nature is still considered to be a major problem. In this study, we take a closer look at CNN interpretability and propose a new method called Evolutionary Generative Contribution Mappings (EGCM). In EGCM, CNN models incorporate both a classification mechanism and an interpreting mechanism in an end-to-end training process. Specifically, the network generates the class contribution maps, which indicate the discriminative regions for the model to identify a specific class. Additionally, these maps can be directly used for classification tasks; all that is needed is a global average pooling and a softmax function. The network is represented by a directed acyclic graph and optimized using a genetic algorithm. Architecture search enables EGCM to deliver reasonable classification performance while maintaining high interpretability. We apply the EGCM framework on several datasets and empirically demonstrate that the EGCM not only achieves excellent classification performance but also maintains high interpretability.
虽然卷积神经网络(cnn)已经有了显著的发展,并表现出出色的性能,但其不可解释的性质仍然被认为是一个主要问题。在这项研究中,我们仔细研究了CNN的可解释性,并提出了一种名为进化生成贡献映射(EGCM)的新方法。在EGCM中,CNN模型在端到端训练过程中结合了分类机制和解释机制。具体来说,网络生成类贡献图,它指示模型识别特定类的判别区域。此外,这些地图可以直接用于分类任务;所需要的只是一个全局平均池和一个softmax函数。该网络用有向无环图表示,并采用遗传算法进行优化。架构搜索使EGCM能够在保持高可解释性的同时提供合理的分类性能。我们将EGCM框架应用于多个数据集上,实证表明EGCM不仅取得了优异的分类性能,而且保持了较高的可解释性。
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引用次数: 0
Slip Ratio Optimization in Vehicle Safety Control Systems Using Least-Squares Based Adaptive Extremum Seeking 基于最小二乘自适应极值求法的车辆安全控制系统滑移率优化
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283109
Nursefa Zengin, Halit Zengin, B. Fidan, A. Khajepour
Tire-road friction coefficient is an essential parameter in vehicle safety control systems. In particular, friction information is required by antilock braking systems (ABS) during deceleration and by traction control systems (TCS) during acceleration. The characteristic of the force acting on the tires has an extremum, which is dependent in the road condition. This paper develops a recursive least squares (RLS) based extremum seeking algorithm that estimates the optimum slip ratio on-line to produce maximum deceleration/acceleration. Results of simulation studies in both Matlab and CarSim environments are presented to illustrate the effectiveness of the developed algorithm and numerically compare with gradient based estimation.
轮胎-路面摩擦系数是车辆安全控制系统中的一个重要参数。特别是,减速时的防抱死制动系统(ABS)和加速时的牵引控制系统(TCS)需要摩擦信息。作用在轮胎上的力的特性有一个极值,它取决于路况。本文提出了一种基于递推最小二乘(RLS)的求极值算法,用于在线估计产生最大减速/加速度的最佳滑移比。给出了在Matlab和CarSim环境下的仿真研究结果,以说明所开发算法的有效性,并与基于梯度的估计进行了数值比较。
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引用次数: 2
A Deep Learning Approach for Fault Detection and Diagnosis of Industrial Processes using Quantum Computing 基于量子计算的工业过程故障检测与诊断的深度学习方法
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9283034
Akshay Ajagekar, F. You
Quantum computing and deep learning methods hold great promise to open up a new era of computing and have been receiving significant attention recently. This paper presents quantum computing (QC) based deep learning methods for fault diagnosis that are capable of overcoming the computational challenges faced by conventional techniques performed on classical computers. The shortcomings of such classical data-driven techniques are addressed by the proposed QC-based fault diagnosis model. A quantum computing assisted generative training process followed by supervised discriminative training is used to train this model. The applicability of proposed model and methods is demonstrated by applying them to process monitoring of Tennessee Eastman (TE) process. The proposed QC-based deep learning approach enjoys superior performance with an average fault diagnosis rate of 80% and tremendously low false alarm rates for the TE process.
量子计算和深度学习方法有望开启一个新的计算时代,最近受到了极大的关注。本文提出了基于量子计算(QC)的深度学习故障诊断方法,该方法能够克服在经典计算机上执行的传统技术所面临的计算挑战。本文提出的基于qc的故障诊断模型解决了传统数据驱动技术的不足。采用量子计算辅助生成训练过程,然后进行有监督判别训练来训练该模型。将所提出的模型和方法应用于田纳西伊士曼(TE)过程监控,验证了其适用性。本文提出的基于qc的深度学习方法在TE过程中具有优异的性能,平均故障诊断率为80%,虚警率极低。
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引用次数: 0
Optimal Trajectory Planning for a Robotic Manipulator Palletizing Tasks * 机器人码垛作业的最优轨迹规划[j]
Pub Date : 2020-10-11 DOI: 10.1109/SMC42975.2020.9282868
F. Parisi, A. M. Mangini, M. P. Fanti
In recent years, the employment of robots has become a value-added entity in the industries in gaining their competitive advantages. Moreover, thanks to Industry 4.0 paradigm, many production tasks have grown in terms of dimensionality, complexity and higher precision and need to be performed by robots. Among them, the palletizing task is still highly dependent on the particular problem to solve, and its optimization needs to be performed basing on the ground condition. In this paper a palletizing task problem performed by a robotic manipulator is studied. More in detail, some objects have to be transported from a pre-determined storage area to a delivery area. In the storage area the objects are stacked one on the other in columns, while in the delivery area the robotic manipulator poses the objects in horizontal levels, one over another. The process is optimized by minimizing the total distance travelled by the robotic manipulator to transport all the objects from the storage area to the delivery area. An Integer Linear Programming (ILP) problem is formalized and tested by simulations and experimental results.
近年来,机器人的使用已经成为各行业获得竞争优势的增值实体。此外,由于工业4.0范式,许多生产任务在维度,复杂性和更高精度方面都有所增长,需要由机器人执行。其中,码垛任务仍然高度依赖于要解决的具体问题,需要根据地面情况进行优化。本文研究了一个由机器人机械手执行的码垛任务问题。更详细地说,一些对象必须从预定的存储区域运输到交付区域。在储存区,物品以列的形式一个接一个地堆叠在一起,而在配送区,机器人机械手将物品放置在水平水平上,一个接一个。通过最小化机器人将所有物体从存储区运输到交付区所走的总距离来优化该过程。对整数线性规划(ILP)问题进行形式化,并通过仿真和实验结果进行了验证。
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引用次数: 2
期刊
2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)
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