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A Comparative Review on DDoS Attack Detection Using Machine Learning Techniques 使用机器学习技术检测 DDoS 攻击的比较综述
Pub Date : 2024-03-09 DOI: 10.56532/mjsat.v4i2.208
Zerin Hasan Sahosh, Azraf Faheem, Marzana Bintay Tuba, Syeda Anika Tasnim, Syeda Anika, Tasnim
The rapid growth of the internet and the increasing reliance on digital infrastructures have posed significant challenges to cybersecurity. Among the other variants of attacks, Distributed Denial of Service (DDoS) attacks have emerged as one of the most destructive and common threats. These attacks disrupt or slow down network services by overwhelming the network infrastructure with a massive volume of malicious traffic. To effectively identify and mitigate DDoS attacks, machine learning techniques have been extensively employed in intrusion detection systems. Machine learning approaches offer the advantage of automating the detection process by learning patterns and characteristics of DDoS attacks from historical data. Researchers have explored various machine learning algorithms such as K-Nearest Neighbours (KNN), Support Vector Machine (SVM), Random Forest (RF), and Naïve Bayes to classify and detect DDoS attacks. These algorithms leverage features extracted from network traffic data, including packet size, packet delay patterns, and traffic behaviour, to differentiate between normal and malicious traffic.
互联网的快速发展和对数字基础设施的日益依赖给网络安全带来了巨大挑战。在其他各种攻击中,分布式拒绝服务(DDoS)攻击已成为最具破坏性和最常见的威胁之一。这些攻击通过大量恶意流量压垮网络基础设施,从而破坏或减缓网络服务。为了有效识别和缓解 DDoS 攻击,机器学习技术已被广泛应用于入侵检测系统中。机器学习方法通过从历史数据中学习 DDoS 攻击的模式和特征,实现了检测过程的自动化。研究人员探索了各种机器学习算法,如 K-Nearest Neighbours (KNN)、Support Vector Machine (SVM)、Random Forest (RF) 和 Naïve Bayes,用于对 DDoS 攻击进行分类和检测。这些算法利用从网络流量数据(包括数据包大小、数据包延迟模式和流量行为)中提取的特征来区分正常流量和恶意流量。
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引用次数: 0
Does Number Changes of Open Manometers Filled with Pure Water Impact Wind Speeds in Venturi Tube Systems? 注入纯水的开口压力计的数量变化是否会影响文丘里管系统中的风速?
Pub Date : 2024-03-09 DOI: 10.56532/mjsat.v4i2.283
Gede Rasagama
Fluid flow in a venturi tube (VT) is a dynamic fluid phenomenon that plays an important role in human life. Flow safety control is necessary by installing several manometers of open (MoO) containing static fluid. The study's purpose was to know the change impacts of the number of installed MoOs against flow speed characters within VTs from conditions of 1 to 2 MoOs. The research uses experimental methods. The main research equipment includes 1 blower-rheostat system, 1 VT with 8 different diameters, and 2 MoOs containing pure water. Data analysis was done using SPSS. Within measurement intervals of 4 Ω ≤ R ≤ 281 Ω and 4.58 cm ≤ d ≤ 9.45 cm, the study showed the comparison of the mean of wind speed, wind speed gradient to R (d fixed), convergent wind speed gradient to d (R fixed), and divergent wind speed gradient to d (R fixed) between 1-MoO and 2-MoO type, respectively, were1. 21E+01 ms-1 vs 1.55E+01 ms-1, -2.73E-02 ms-1Ω-1 vs -4.11E-02 ms-1Ω-1, -3.13E+02 s-1 vs -4.25E+02 s-1, and -4.31E+02 s-1 vs -4.84E+02 s-1. While its impact differences are insignificant, insignificant, significant, and insignificant, respectively.
文丘里管(VT)中的流体流动是一种动态流体现象,在人类生活中发挥着重要作用。有必要通过安装多个包含静态流体的开放式压力计(MoO)来进行流量安全控制。本研究的目的是了解从 1 个到 2 个 MoO 的条件下,安装 MoO 的数量对 VT 内流速特征的变化影响。研究采用了实验方法。主要研究设备包括 1 个鼓风机-恒温器系统、1 个 8 种不同直径的 VT 和 2 个含有纯水的 MoO。数据分析采用 SPSS。研究表明,在 4 Ω ≤ R ≤ 281 Ω 和 4.58 cm ≤ d ≤ 9.45 cm 的测量区间内,1-MoO 型和 2-MoO 型的风速平均值、风速对 R 的梯度(d 固定)、风速对 d 的收敛梯度(R 固定)和风速对 d 的发散梯度(R 固定)的比较分别为 1.21E+01 ms-1 vs 1.55E+01 ms-1,-2.73E-02 ms-1Ω-1 vs -4.11E-02 ms-1Ω-1,-3.13E+02 s-1 vs -4.25E+02 s-1,以及-4.31E+02 s-1 vs -4.84E+02 s-1。而其影响差异分别为不显著、不显著、显著和不显著。
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引用次数: 0
Designing an Autonomous Mobile Robot based on Rocker-Bogie Concept for Terrain Purposes 基于 Rocker-Bogie 概念设计用于地形的自主移动机器人
Pub Date : 2024-03-09 DOI: 10.56532/mjsat.v4i2.263
Nurul Muthmainnah, Mohd Noor, Zarith Sofia Ahmad, Razali, Rohidatun Mahmod, Salmiah Ahmad
Currently, extensive research has been done on improving self-controlling mobile robots. This robot is called autonomous mobile robots (AMRs) and it was designed for various applications like moving around in places such as libraries, restaurants, and healthcare. This paper focuses on designing a six-wheeled mobile robot using Fusion 360 software, based on Rocker-Bogie structure. The main idea from the Rocker-Bogie concept is that it does not use springs or separate stub axles for each wheel, allowing the robot’s body to overcome obstacles like rocks, ditches, and sand. The actuator of the DC motor for each wheel was used to study the robot’s stability and its movement. Meanwhile, the movement of the robot was controlled by implementing a user graphical interface (GUI) using Blynk software.  There are four main directions for the movement of the robot: moving forward, backward, and turning left and right position. Importantly, the Rocker-Bogie can be a starting point for developing an independent mobile robot that can navigate different terrains like sand, grass, and roads. This capability comes by using various sensors that help the robot navigate its surroundings effectively.
目前,人们对改进自控移动机器人进行了广泛的研究。这种机器人被称为自主移动机器人(AMR),设计用于图书馆、餐厅和医疗保健等场所的移动等各种应用。本文的重点是使用 Fusion 360 软件,基于 Rocker-Bogie 结构设计六轮移动机器人。Rocker-Bogie 概念的主要思想是,它不使用弹簧,也不为每个轮子单独安装短轴,从而使机器人的身体能够克服岩石、沟渠和沙子等障碍。每个轮子的直流电机驱动器被用来研究机器人的稳定性和运动情况。同时,通过使用 Blynk 软件实现用户图形界面(GUI)来控制机器人的运动。 机器人的运动主要有四个方向:前进、后退、左右转弯。重要的是,Rocker-Bogie 可以作为开发独立移动机器人的起点,这种机器人可以在沙地、草地和道路等不同地形上行走。这种能力是通过使用各种传感器来实现的,这些传感器可以帮助机器人有效地导航周围的环境。
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引用次数: 0
Assessment of Rock Engineering Risk Management Frameworks Used in Underground Mines 地下矿山岩石工程风险管理框架评价
Pub Date : 2023-09-11 DOI: 10.56532/mjsat.v3i3.161
None Desire Runganga, None Simbarashe Geja, None Maidei Meck
Over 40% percent of the accidents encountered at Unki Mines are related to ground failure and other geotechnical complications. This research sought to address the monetary losses incurred in revenue and productivity through absenteeism and injury. With the development of mine production in Zimbabwe, the depth of mines gradually increased, and the ecological environment developed complex conditions. Deep mining unlike shallow mining is characterized by extra ground pressure, more gas, and faster deformation rates. These factors affect the safety of mining production. Therefore, as the mining depth and breadth increase, the difficulty of mine rock engineering is also increasing. The deepening of mining depth and the improvement of the mechanization level have brought increasing difficulties regarding the stability of surrounding rock hence risk issues arise. The ultimate objective of this study was to ensure a robust design of support systems at Unki Mine that would eventually reduce the risks associated with rock engineering excavations. Findings from the study and its analysis established the following conclusions. On the fore is the fact that hanging wall instability at Unki Mine are predominantly governed by geological and span attributes. The computed k value is 7% less the k value of 57.33 MPa used for existing pillars. An analysis of FOS and its relationship with recovery and Pillar W/H ratio shows that over-break has a huge impact on the span stability hence the effect of the ANFO need to be reviewed for an alternative explosive that ensures recovery within 80% range to ensure that the FOS is maintained above 1.6. A decrease in FoS increases the probability of failure, hence it is also important to device a pillar support system that is less prone to effects of over-break since the ground conditions are poor.
Unki矿山超过40%的事故与地面破坏和其他岩土工程并发症有关。这项研究试图解决因缺勤和受伤而造成的收入和生产力损失。随着津巴布韦矿山生产的发展,矿山深度逐渐增加,生态环境发育复杂条件。与浅层开采不同,深层开采的特点是额外的地压、更多的气体和更快的变形速率。这些因素影响着矿山的安全生产。因此,随着开采深度和广度的增加,矿山岩石工程的难度也在增加。随着开采深度的加深和机械化水平的提高,给围岩稳定性带来了越来越大的困难,从而产生了风险问题。本研究的最终目标是确保Unki矿山的支持系统设计稳健,从而最终降低与岩石工程挖掘相关的风险。研究结果及其分析确立了以下结论。综上所述,Unki矿上盘失稳主要受地质属性和跨度属性的控制。计算的k值比现有矿柱57.33 MPa的k值低7%。对FOS及其与回弹率和支柱W/H比的关系的分析表明,过断对跨度稳定性有巨大影响,因此需要对ANFO的效果进行审查,以确保在80%的范围内回弹,以确保FOS保持在1.6以上。FoS的减少增加了失效的可能性,因此,由于地面条件较差,因此安装一个不容易受到超溃影响的支柱支撑系统也很重要。
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引用次数: 0
Prediction of Flyrocks, Airblasts and Ground Vibrations Using Neural Computing and Applications at ZCDC Mine 飞岩、空爆和地面振动的神经网络预测及其在ZCDC矿山的应用
Pub Date : 2023-09-11 DOI: 10.56532/mjsat.v3i3.135
Charles Chewu, Tonderai Chikwere, Desire Runganga, None Elia Chipfupi, Tatenda Nyamagudza
When an explosive detonates in a blasthole, approximately 20 to 30% of the energy is only utilized for fragmenting the rock mass whilst the bulk of the energy is lost in the form of ground vibrations, flyrocks and airblasts. Employees’ residences, mine offices, processing plants and engineering workshops built close to the mining area and are in danger of being damaged by blast induced hazards. In addition, due to flyrocks there was a high level of ore losses, ore dilution, equipment damages, mine roads and powerlines. To assess and reduce these negative impacts, monitoring of flyrocks, ground vibrations and airblast was carried out and generate a prediction model. A three-layer, feed-forward back-propagation of a 9-10-3 network architecture was trained, validated, and tested using the Bayesian regularization algorithm. A total of 100 monitored blast records obtained from the mine were used as input parameters for the ANN prediction model. Subsequently a Multivariate Regression analysis prediction model was run and used to compare with the results obtained from ANN model. Based on the study's findings, an ANN model proved to be the best for field predictions.To determine the relative impact of each input parameter on flyrocks, gound vibration, and Airblast, a sensitivity analysis was also carried out and lastly blast optimization which managed to reduce blast induced impacts by over 30%.
当炸药在爆孔中爆炸时,大约20%到30%的能量仅用于破碎岩体,而大部分能量以地面振动、飞石和空气爆炸的形式损失。在矿区附近建造的职工住宅、矿山办公室、加工厂和工程车间,有被爆炸危害破坏的危险。此外,由于飞石,矿石损失、矿石稀释、设备损坏、矿山道路和电力线的情况也很严重。为了评估和减少这些负面影响,对飞岩、地面振动和空气冲击波进行了监测,并生成了预测模型。使用贝叶斯正则化算法训练、验证和测试了一个三层、前馈反向传播的9-10-3网络架构。从该矿获得的100条监测爆破记录作为人工神经网络预测模型的输入参数。随后运行多元回归分析预测模型,并与人工神经网络模型的预测结果进行比较。根据这项研究的发现,人工神经网络模型被证明是最适合现场预测的。为了确定每个输入参数对飞岩、地面振动和空气爆破的相对影响,还进行了敏感性分析,最后进行了爆破优化,成功地将爆破引起的冲击减少了30%以上。
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引用次数: 0
Computation of VHF Signal Strength for Point to Area Network using Machine Learning Modeling Techniques 基于机器学习建模技术的点到局域网VHF信号强度计算
Pub Date : 2023-09-11 DOI: 10.56532/mjsat.v3i3.163
Kingsley Igwe, None Nurudeen Olawale Adeyemi, None Lukman Folorunso Onadiran
In this paper, computation of very high frequency (VHF) signal strength for point to area network was carried out using machine learning modeling techniques. Seven different machine learning models were adopted: Decision Tree, Random Forest, AdaBoost, k-Nearest Neighbor, Support Vector Machine, Artificial Neural Network and Linear Regression. A total of 120 data points was used in computing the signal strength. 72 data points (60%) was used to train the model, while the remaining 48 data points (40%) were used as test data to determine the accuracy of the computation for all the models. From the results, it was observed that the accuracy of the computations was greatly influenced by the amount of training data that was used. Also, from the results, in highest order of accuracy, AdaBoost was adjudged the best model. This was followed by the Artificial Neural Network model. Generally, the error margin of computation obtained for these two models were low, hence indicating that the models can be effectively relied on for computation of signal strength in the study area.
本文利用机器学习建模技术对点到局域网的甚高频(VHF)信号强度进行计算。采用决策树、随机森林、AdaBoost、k近邻、支持向量机、人工神经网络和线性回归等7种不同的机器学习模型。共使用120个数据点计算信号强度。72个数据点(60%)用于训练模型,其余48个数据点(40%)作为测试数据,以确定所有模型的计算精度。从结果中可以看出,计算的准确性受到所使用的训练数据量的极大影响。此外,从结果来看,AdaBoost被认为是准确率最高的模型。接下来是人工神经网络模型。总体而言,这两种模型的计算误差较小,表明这两种模型可以有效地用于研究区信号强度的计算。
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引用次数: 0
Evaluating the Effectiveness of Machine Learning and Computer Vision Techniques for the Early Detection of Maize Plant Disease 评估机器学习和计算机视觉技术在玉米植物病害早期检测中的有效性
Pub Date : 2023-08-29 DOI: 10.56532/mjsat.v3i3.180
Ahmad Anwar Zainuddin, None Shaun Tatenda Njazi, None Asmarani Ahmad Puzi, None Nur Athirah Mohd Abu Bakar, None Aly Mennatallah Khaled Mohammad Ramada, None Hasbullah Hamizan, None Rohilah Sahak, None Aiman Najmi Mat Rosani, None Nasyitah Ghazalli, None Siti Husna Abdul Rahman, None Saidatul Izyanie Kamarudin
Monitoring plant growth is a crucial agricultural duty. In addition, the prevention of plant diseases is an essential component of the agricultural infrastructure. This technique must be automated to keep up with the rising food demand caused by increasing population expansion. This work evaluates this business, specifically the production of maize, which is a significant source of food worldwide. Ensure that Mazie's yields are not damaged is a crucial endeavour. Diseases affecting maize plants, such as Common Rust and Blight, are a significant production deterrent. To reduce waste and boost production and disease detection efficiencies, the automation of disease detection is a crucial strategy for the agricultural sector. The optimal solution is a self-diagnosing system that employs machine learning and computer vision to distinguish between damaged and healthy plants. The workflow for machine learning consists of data collection, data preprocessing, model selection, model training and testing, and evaluation.
监测植物生长是一项重要的农业责任。此外,预防植物病害是农业基础设施的一个重要组成部分。这项技术必须实现自动化,以跟上人口增长带来的粮食需求增长。这项工作评估了这一业务,特别是玉米的生产,玉米是世界范围内重要的食物来源。确保Mazie的产量不受损害是一项至关重要的努力。影响玉米植株的疾病,如普通锈病和枯萎病,是一个重大的生产障碍。为了减少浪费,提高生产和疾病检测效率,疾病检测自动化是农业部门的一项关键战略。最佳解决方案是一个自我诊断系统,该系统利用机器学习和计算机视觉来区分受损和健康的植物。机器学习的工作流程包括数据收集、数据预处理、模型选择、模型训练和测试以及评估。
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引用次数: 0
Performance Analysis of a 5-DOF Robotic Arm by Implementing a Graphical User Interface 基于图形用户界面的五自由度机械臂性能分析
Pub Date : 2023-08-22 DOI: 10.56532/mjsat.v3i3.170
Nurul Muthmainnah Mohd Noor, Muhamad Safwan Sabin, Rohidatun Mahmod@Wahab
Today, the topic of performance in industrial robotics is being addressed by researchers at a much faster pace than a few years ago. In 2023, there are a variety of applications for industrial robotics, such as agriculture, education, and the film industry. In this paper, the implementation of Graphical User Interface (GUI) as a controller input between an Android smartphone and the Arduino was discussed. This GUI was developed to help the user in controlling the robotic arm. For the movement of 5-degree motion of a robot, the concept of inverse kinematics (IK) was applied to the system. To test the performance of the robot, a simple test had done by drawing the basic shape by putting the pencil into the gripper. Then, these drawings were compared with the original by calculating the percentage error of the dimensions from the center to the outside. The result shows that the robotic arm is capable of performing all the tasks assigned to it and can also be controlled through the graphical user interface of a smartphone. Therefore, implementing Bluetooth Wi-Fi as a communication between smartphone and robot is a good way to study the performance of robots, especially for small and lightweight robotic arms.
今天,研究人员正在以比几年前快得多的速度研究工业机器人的性能问题。2023年,工业机器人将会有各种各样的应用,比如农业、教育和电影行业。本文讨论了图形用户界面(GUI)作为Android智能手机和Arduino之间的控制器输入的实现。开发这个图形用户界面是为了帮助用户控制机械臂。针对机器人的5度运动,将逆运动学的概念应用到系统中。为了测试机器人的性能,他们做了一个简单的测试,把铅笔放进夹子里,画出了机器人的基本形状。然后,通过计算从中心到外的尺寸误差百分比,将这些图纸与原始图纸进行比较。结果表明,该机械臂能够完成分配给它的所有任务,也可以通过智能手机的图形用户界面进行控制。因此,实现蓝牙Wi-Fi作为智能手机和机器人之间的通信是研究机器人性能的一个很好的方法,特别是对于小而轻的机械臂。
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引用次数: 0
An Extended Type-2 Fuzzy Relational Database Model for Aggregate and Grouping Operations 用于聚合和分组操作的扩展型2型模糊关系数据库模型
Pub Date : 2023-08-22 DOI: 10.56532/mjsat.v3i3.169
Hoa Nguyen
This paper introduces an extended type-2 fuzzy relational database model (ET-2FRDB) for aggregate and grouping operations that can represent and query uncertain and imprecise information in the real world applications. In ET-2FRDB, each fuzzy relation is represented by a type-2 fuzzy set whose membership degree of each tuple is a fuzzy number on [0, 1], the fuzzy aggregate functions, the fuzzy relational algebraic, aggregate and grouping operations are defined as extensions of those in the classical relational database model thereby the membership degree of tuples associated by using the minimum and maximum of fuzzy numbers. Also, some properties of the fuzzy relational algebraic, aggregate and grouping operations in ET-2FRDB are formulated and proven.
本文介绍了一种扩展的2型模糊关系数据库模型(ET-2FRDB),用于实际应用中的聚合和分组操作,可以表示和查询不确定和不精确的信息。在ET-2FRDB中,每个模糊关系用一个2型模糊集来表示,每个元组的隶属度是[0,1]上的一个模糊数,将模糊聚合函数、模糊关系代数、聚合和分组操作定义为经典关系数据库模型中那些操作的扩展,从而利用模糊数的最小值和最大值来关联元组的隶属度。给出了ET-2FRDB中模糊关系代数、聚合和分组运算的一些性质,并给出了证明。
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引用次数: 0
期刊
Malaysian Journal of Science and Advanced Technology
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