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2021 IEEE 12th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)最新文献

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Development of a Smart Automatic Gas Leakage Detector and Alarming System 燃气泄漏智能自动检测报警系统的研制
Sayeda Islam Nahid, Navid Anjum, N. Chowdhury, Laila Tamanna Anni, M. Mahmud, Mohammad Monirujjaman Khan, R. H. Ashique
In comparison to firewood and charcoal, LPG is widely used as a source of fuel, mainly in urban regions. Due to the extremely combustible nature of the gas, there is always the risk of gas leakage as a consequence of carelessness or failure of the regulating valve on the gas cylinder, which poses a significant risk. Gas-related fires are on the rise, which may be prevented by utilizing a gas leakage detection system, necessitating the creation of a microcontroller-based cooking gas detector. The use of a microcontroller allows for the creation of a highly precise and quick reaction time detecting system. The detector includes a MQ-6 LPG gas sensor, a PIC16F690 microcontroller, an LCD, a buzzer, and a number of LEDs to learn about the gas leak's condition. When a voltage signal is present from the MQ-6 sensor exceeds a specific threshold, the microcontroller detects the presence of a gas and sends an audiovisual alert. All peripherals are linked to the microcontroller through its pins, which are coded in the PIC assembly language. When the system was turned on, the microcontroller turned on a green LED to indicate that there was no gas leakage. A digital multimeter is used to monitor the sensor voltage signal when LPG gas is discharged. Whenever the voltage is less than 2.0V, the green light remains illuminated; when the voltage is more than 2.0V, the microcontroller blinks a red LED and sounds an alarm to indicate the presence of a gas. The alert can be recognized by pressing a button on the sensor. When the system was turned on, the microcontroller turned on a green LED to indicate that there was no gas leakage. A digital multimeter is used to monitor the sensor voltage signal when LPG gas is discharged. Whenever the voltage is less than 2.0V, the green light remains illuminated; when the voltage is more than 2.0V, the microcontroller blinks a red LED and sounds an alarm to indicate the presence of a gas. The alert can be recognized by pressing a button on the sensor.
与木柴和木炭相比,液化石油气被广泛用作燃料来源,主要是在城市地区。由于气体的极端可燃性,由于气瓶上的调节阀不小心或故障,总是存在气体泄漏的风险,这构成了重大风险。燃气相关的火灾正在上升,可以通过使用燃气泄漏检测系统来防止,这就需要创建一个基于微控制器的烹饪燃气探测器。微控制器的使用允许创建一个高度精确和快速反应时间检测系统。该探测器包括一个MQ-6 LPG气体传感器、一个PIC16F690微控制器、一个LCD、一个蜂鸣器和一些led,用于了解气体泄漏情况。当来自MQ-6传感器的电压信号超过特定阈值时,微控制器检测到气体的存在并发送视听警报。所有外设都通过引脚连接到微控制器,这些引脚用PIC汇编语言编码。当系统开机时,微控制器亮绿色LED,表示没有气体泄漏。数字万用表用于监测液化气放电时传感器的电压信号。当电压低于2.0V时,绿灯常亮;当电压大于2.0V时,微控制器闪烁红色LED并发出警报,指示存在气体。警报可以通过按下传感器上的按钮来识别。当系统开机时,微控制器亮绿色LED,表示没有气体泄漏。数字万用表用于监测液化气放电时传感器的电压信号。当电压低于2.0V时,绿灯常亮;当电压大于2.0V时,微控制器闪烁红色LED并发出警报,指示存在气体。警报可以通过按下传感器上的按钮来识别。
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引用次数: 1
Twitter Sentiment Analysis in Covid-19 Pandemic Covid-19大流行中的推特情绪分析
Samaneh Madanian, David Airehrour, Nabilah Ahmad Samsuri, M. Cherrington
We have yet to realise the full capability of social media as an innovative information platform during emergencies and crisis response and management. Sentiment analysis can systematically identify, extract, and scrutinise emotional states and subjective information in social media data. Exploring reactions and perceptions to response messaging is invaluable and proved especially useful for a pandemic response as it can demonstrate general population reaction to the pandemic and governments response actions. This can be further analysed to identify the gap between government response actions and communications and citizens' perceptions. In this paper, an analysis of Twitter data explores population reaction towards COVID-19 health messaging. A Natural Language Processing Python tool is known as TextBlob was used to discover general data sentiment. Data were divided into three sentiments and text extraction of health messages was conducted to explore subsequent tweets in predefined categories. Our findings show the outcome of Tweets analysis could help us to identify the general population concerns and their reactions to COVID-19 to give a better understanding of the situation to governments and support them in implementing appropriate policies.
在突发事件和危机应对和管理中,我们尚未充分发挥社交媒体作为创新信息平台的全部能力。情绪分析可以系统地识别、提取和审查社交媒体数据中的情绪状态和主观信息。探索对应对信息传递的反应和看法是非常宝贵的,事实证明对大流行应对特别有用,因为它可以显示大众对大流行的一般反应和政府的应对行动。这可以进一步分析,以确定政府的应对行动和沟通与公民的看法之间的差距。在本文中,对Twitter数据的分析探讨了人们对COVID-19健康信息的反应。一个被称为TextBlob的自然语言处理Python工具被用于发现一般数据情感。将数据分为三种情绪,并对健康信息进行文本提取,以探索预定义类别的后续推文。我们的研究结果表明,推文分析的结果可以帮助我们确定一般人群的担忧及其对COVID-19的反应,从而更好地了解政府的情况,并支持他们实施适当的政策。
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引用次数: 3
A Survey on User Authentication Factors 用户认证因素调查
A. A. AlQahtani, Zakaria El-Awadi, Manki Min
Today, digital information decisively permeates all aspects of modern society. In such a connected world, one of the critical factors in maintaining the security of transmitted data is user authentication, which establishes confidence in the user identities presented to an information system. Over time, the definition of user authentication has not changed; however, a simple password is no longer the only factor used for authenticating a user. Two-factor Authentication (2FA) and Multi-factor Authentication (MFA) were proposed to provide a high level of security by adding more than one layer of authentication. For the most part, these layers of Authentication are based on knowledge, ownership, biometrics, and/or users' behaviors. This paper presents and analyzes authentication factors that are utilized to authenticate a user and prove his/her identity to a resource.
今天,数字信息决定性地渗透到现代社会的各个方面。在这样一个互联的世界中,维护传输数据安全性的关键因素之一是用户身份验证,它建立了对呈现给信息系统的用户身份的信任。随着时间的推移,用户认证的定义并没有改变;但是,简单的密码不再是用于验证用户身份的唯一因素。提出了双因素身份验证(2FA)和多因素身份验证(MFA),通过增加一层以上的身份验证来提供高级别安全性。在大多数情况下,这些身份验证层基于知识、所有权、生物识别和/或用户行为。本文提出并分析了用于对用户进行身份验证并向资源证明其身份的认证因素。
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引用次数: 3
Efficient FPGA Implementation of Parameterized Real Time Color Based Object Tracking 基于颜色的参数化实时目标跟踪的高效FPGA实现
Robert Morris, Shahnam Mirzaei
This paper presents an efficient color based tracking method applied on a sequence of live video frames for use in real time applications such as surveillance, video conferencing, and robot navigation. The proposed integrated system architecture consists of an attached camera that communicates with the FPGA through HDMI interface. The deployed computer vision algorithm in the FPGA can capture video frames at the rate of 60 fps with the large image sizes of up to 1280×1024 pixels. It then identifies the object based on the specified color, removes noise via spatial filtering and calculates the centroid allowing the object to be tracked during motion. The proposed algorithm leverages a reduction method to minimize the FPGA area as well as power consumption by averaging values over a range of several pixels; thus logarithmically reduces the design size. Our implementation is parameterized to be made as accurate or small as an application requires, with minimal error. The proposed tracking system is implemented on a Xilinx ZYNQ-7000 series XC7Z010 FPGA housed on Xilinx Zybo development board. The utilization reports show for a selected reduction rate of 16, 86.5% reduction in Slice LUTs and 81.3% in Slice registers with the maximum error of 1.5% in centroid calculation.
本文提出了一种有效的基于颜色的跟踪方法,应用于实时视频帧序列,用于监控,视频会议和机器人导航等实时应用。提出的集成系统架构包括一个附加的摄像头,通过HDMI接口与FPGA通信。在FPGA中部署的计算机视觉算法可以以60fps的速率捕获视频帧,图像大小可达1280×1024像素。然后,它根据指定的颜色识别物体,通过空间滤波去除噪声,并计算质心,使物体在运动过程中被跟踪。所提出的算法利用缩减方法通过在几个像素的范围内取平均值来最小化FPGA面积以及功耗;因此以对数方式减小设计尺寸。我们的实现是参数化的,以使其与应用程序所需的一样精确或小,并且误差最小。该跟踪系统在Xilinx ZYNQ-7000系列XC7Z010 FPGA上实现,该FPGA安装在Xilinx Zybo开发板上。利用率报告显示,切片lut的减少率为16,86.5%,切片寄存器的减少率为81.3%,质心计算的最大误差为1.5%。
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引用次数: 2
Neighborhood Search in Differential Evolution for Solving Trusted Ridesharing Problems 基于差分进化的邻域搜索求解可信拼车问题
Fu-Shiung Hsieh
The lack of trust is one of the barriers that hinders the acceptance of ridesharing. In the past years, one of the hot research issue in the context of ridesharing is to enhance trust. Such trust based ridesharing problem can be described as an optimization problem in which a large number of constraints must be satisfied. Due to complexity of this optimization problem, exact methods are limited and cannot be applied. Therefore, approximate methods are usually applied to find the solutions. This problem can be solved by evolutionary algorithms. The purpose of this study is to develop an algorithm for trust based ridesharing problems by applying neighborhood search in Differential Evolution approach. We compare the proposed algorithm with other competitive algorithms. The numerical results indicate that applying neighborhood search in Differential Evolution approach leads to a more efficient solution algorithm.
缺乏信任是阻碍人们接受拼车的障碍之一。在过去的几年里,在拼车的背景下,一个热门的研究问题是增强信任。这种基于信任的拼车问题可以被描述为一个必须满足大量约束的优化问题。由于该优化问题的复杂性,精确的方法是有限的,无法应用。因此,通常采用近似方法来求解。这个问题可以用进化算法来解决。本研究的目的是利用差分进化方法中的邻域搜索,开发一种基于信任的拼车问题的算法。我们将该算法与其他竞争算法进行了比较。数值结果表明,在差分进化方法中应用邻域搜索可以得到更有效的求解算法。
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引用次数: 0
Modeling the Effects of SBD, HCI, and NBTI in CMOS Voltage Controlled Oscillator Design for PLL Applications SBD、HCI和NBTI在锁相环CMOS压控振荡器设计中的影响建模
Naheem Olakunle Adesina, Md Azmot Ullah Khan, Jian Xu
In this paper, two different structures of phase locked loop (PLL) are examined and designed in 0.13 µm n-well CMOS process technology. The two PLLs only differ in voltage-controlled oscillator (VCO): current starved and LC VCOs. Using device degradation models and equations, their performances are investigated under the combined effects of soft breakdown, hot carrier injections, and negative bias temperature instability. It is observed in the current starved VCO that the gain reduces by 33.5%, the maximum frequency decreases from 1180 MHz to 1100 MHz, and the phase noise increases from −107.6 dBc/Hz to −103.5 dBc/Hz at 1 MHz offset frequency after 6 hours of stress. The varactor degradation in LC voltage-controlled oscillator causes a decrease in the mean capacitance, resulting in increased oscillation frequency. In addition, the phase noise increases from −120 dBc/Hz to −117.2 dBc/Hz at 1 MHz frequency.
本文采用0.13 μ m n阱CMOS工艺,研究并设计了两种不同结构的锁相环(PLL)。这两个锁相环只在压控振荡器(VCO)上有所不同:电流饥渴和LC VCO。利用器件退化模型和方程,研究了软击穿、热载流子注入和负偏置温度不稳定性共同作用下的器件性能。在电流缺失的压控振荡器中,经过6小时的应力处理,增益降低了33.5%,最大频率从1180 MHz降低到1100 MHz,相位噪声从- 107.6 dBc/Hz增加到- 103.5 dBc/Hz。LC压控振荡器的变容劣化导致平均电容降低,振荡频率增加。在1mhz频率下,相位噪声从−120 dBc/Hz增加到−117.2 dBc/Hz。
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引用次数: 2
Modelling Crowd Dynamics and Crowd Management Strategies 建模人群动力学和人群管理策略
Andrew J. Park, Ryan Ficocelli, Lee D. Patterson, Valerie Spicer, Frank Dodich, Herbert H. Tsang
A crowd is a large number of people who gather at a specific location at the same time with or without shared agendas and/or emotions. A crowd is formed at sporting, holiday, religious, or political events. Proper management of a crowd is one of the major duties for the civic agencies such as police and fire departments to maintain public order and safety. When such management is ill-prepared and poorly executed, it can result in chaotic situations with human injuries and fatalities as well as damage to public properties. Good crowd management requires a good modelling of crowd dynamics and devising strategies accordingly. This paper presents the modelling and simulations of crowd dynamics that resembles the actual crowd behaviours using the social force model. With the realistic crowd dynamics, different scenarios and crowd management strategies were tested for optimal crowd flows. Our framework can be used to test various scenarios of an event that attracts a large crowd and devise suitable strategies for the crowd management.
人群是指在同一时间聚集在特定地点的一大群人,他们有或没有共同的议程和/或情绪。在体育、节日、宗教或政治活动中形成一群人。妥善管理人群是警察、消防等市民机关维护公共秩序和安全的主要职责之一。当这种管理准备不足和执行不力时,可能会导致混乱局面,造成人员伤亡和公共财产损失。良好的人群管理需要对人群动态进行良好的建模并制定相应的策略。本文采用社会力模型对人群动力学进行建模和模拟,使其与实际人群行为相似。结合真实的人群动态,对不同场景和人群管理策略进行了优化。我们的框架可用于测试吸引大量人群的事件的各种场景,并为人群管理设计合适的策略。
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引用次数: 3
The Application of the Graph Laplacian in Network Forensics 图拉普拉斯在网络取证中的应用
Connor McGee, Jing Guo, Zhaohong Wang
Understanding the behavior of a virus spreading inside a computer network is crucial. In recent years, devices have become increasingly interconnected via communication protocols. Since computer networks are more ubiquitous than ever before, one infected device threatens several others. In order to better defend against network infections, the current methods need more novel means to combat network infections. Spectral graph theory may assist the study of network forensics by better understanding how a virus spreads throughout a networked system. This paper analyzes the spread of a virus throughout a computer network using actual data. The novelty is the calculation of various Laplacian matrices to observe the changes to the network, modeled as a graph resulting from the virus spread. Our discoveries may provide implications to gain early awareness and insights into the infectious situation.
了解病毒在计算机网络中传播的行为是至关重要的。近年来,设备越来越多地通过通信协议相互连接。由于计算机网络比以往任何时候都更加普遍,一个受感染的设备会威胁到其他几个设备。为了更好地防御网络感染,现有的方法需要更多新颖的手段来对抗网络感染。谱图理论可以通过更好地理解病毒如何在网络系统中传播来帮助研究网络取证。本文利用实际数据分析了病毒在计算机网络中的传播。新颖之处在于计算各种拉普拉斯矩阵来观察网络的变化,并将其建模为病毒传播产生的图形。我们的发现可能会对早期认识和了解感染情况提供启示。
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引用次数: 1
A Survey of Deep Learning Methods on Semantic Similarity and Sentence Modeling 语义相似度和句子建模的深度学习方法综述
Samira Zad, Maryam Heidari, P. Hajibabaee, Masoud Malekzadeh
Semantics is a research field that has gained an extensive interest recently. This survey describes recent works in the field of semantics, a part of the broader area of computational linguistics. One of the important aspects of computational linguistics is using proper methods to distribute semantics for obtaining representations of the meaning of words. This survey summarizes the latest state of the art approaches in semantics that use deep learning methods, datasets, and lexical databases, specifying semantics under two categories such as semantic similarity and sentence modeling.
语义学是近年来引起广泛关注的一个研究领域。这篇综述描述了语义学领域的最新研究成果,语义学是计算语言学这一更广泛领域的一部分。计算语言学的一个重要方面是使用适当的方法来分配语义以获得词的意义表示。本调查总结了使用深度学习方法、数据集和词汇数据库的最新语义技术,并将语义分为语义相似度和句子建模两类。
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引用次数: 14
Pothole Detection Using Advanced Neural Networks 利用先进的神经网络进行坑穴检测
Narayana Darapaneni, Naresh Suresh Reddy, Anitha Urkude, A. Paduri, Arati Alok Satpute, Aakash Yogi, Dilip Krishna Natesan, Sarang Surve, Utkarsh Srivastava
A pothole is one among the first reasons for road accidents and is becoming increasingly important to detect while driving on roads. Detection and warning can significantly reduce accidents and damages caused to vehicles. Advanced neural networks process the pictures from the camera on a realtime basis to spot if there is a pothole within the image. Detection of potholes using neural networks will be time-consuming. Recently, the advances in artificial neural network have led to varied high-performance single-shot detection algorithms. These algorithms are especially useful in real-time applications. Hence, in this paper, we present a study of various object detection algorithms towards pothole detection with its speed and accuracy. The dataset comprises around 9000 training images with and without potholes. The article analyzes Yolo V3, Yolo V4, Yolo V5, and SSD algorithms to judge the results with the identical dataset for training and evaluation.
坑洼是交通事故的首要原因之一,在道路上驾驶时,探测坑洼变得越来越重要。探测和预警可以显著减少事故和对车辆造成的损害。先进的神经网络实时处理来自相机的照片,以发现图像中是否有坑洞。使用神经网络检测坑洞将是耗时的。近年来,随着人工神经网络的发展,出现了各种高性能的单镜头检测算法。这些算法在实时应用中特别有用。因此,在本文中,我们对各种目标检测算法进行了研究,以达到坑洞检测的速度和精度。该数据集包括大约9000张有坑洼和没有坑洼的训练图像。本文分析了Yolo V3、Yolo V4、Yolo V5和SSD算法,用相同的数据集来判断训练和评估的结果。
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引用次数: 1
期刊
2021 IEEE 12th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON)
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