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2024 Global Digital Health Knowledge Exchange and Empowerment Conference, gDigiHealth.KEE 2024

作者： Naji, Areen Subha, Muath Arab American University PhD in Information Technology Engineering Ramallah Palestine Arab American University Department of Computer Science PHD Coordinator Ramallah Palestine

ISBN: (纸本)9798331531331

This paper evaluates the effect of initial center selection on cluster quality and the rate of convergence in K-means clustering. In this paper, a new approach is proposed that uses random initialization and spatial distribution scores. The main objective is to enhance K-means clustering by creating a simple, novel, and efficient technique shredded for data classification and other high-level image processing tasks. Our approach relies on image color segmentation through the application of a transformation to the image's RGB color space, representing every pixel by three values of different components of color, divided into blocks, and then a calculation of the density of dots in every block. This value of density mark provided information about the distribution of color values around various parts of an image. It uses a tactical approach in selecting initial centers, namely Scored Centers Initialization, or SCI. It chooses the block with the highest score as the initial center block chosen randomly. Then, it selects subsequent centers based on the probability assessed by the Euclidean distance from the nearest one picked center and the density score of the block. It continuously does this until the desired number of centers is reached. The experimental results indicate that the clustering effect of the approach proposed was better than the traditional Random Centers Initialization method, thus proving the proposed strategy was effective. Based on the consideration of point-to-center distances and the spatial distribution score, it captured better data structures to get quicker convergence and higher quality in the cluster assignment. © 2024 IEEE.

关键词： K-means clustering

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Simulating Simple Tasks for a Kinematic Model of Differential-drive Mobile Robots 17

Simulating Simple Tasks for a Kinematic Model of Differentia...

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17th International Conference on engineering of Modern Electric Systems, EMES 2023

作者： Mihalca, Vlad Ovidiu Anton, Daniel Melentie Tarca, Radu Catalin Yildirim, Sahin PhD School of Engineering Sciences University of Oradea Romania

ISBN: (纸本)9798350310634

Controller design and verification by simulation is explored in this paper, for simple mobile robot tasks such as moving to a point, aligning with a line defined on the motion plane or driving to a predefined pose on the plane. The paper is set in the context of a study on vision-based control and is concerned with the step of using software to simulate the behaviour of a differential-drive mobile robot. Kinematic models are reviewed and presented, along with controller formulae for the enumerated tasks. Model implementations using Simulink are described and ran with predefined parameters, while the last part of the paper illustrates simulation results. © 2023 IEEE.

关键词： Simulink

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Low-cost real-time environmental noise monitoring system design and implementation

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International Journal of Environmental Studies 2024年第3期81卷 1045-1057页

作者： Hamamcı, Samet Feyyaz Doğru, Ahmet Özgür Graduate School Geographical Information Technologies PhD Program Istanbul Technical University Istanbul Turkey Faculty of Civil Engineering Department of Geomatics Engineering Istanbul Technical University Istanbul Turkey

Environmental noise has a negative impact on human health and well-being. Real-time noise monitoring for effective noise control and management helps to identify noise sources and areas with high noise pollution, and potential mitigation strategies in urban planning. This paper reports work with a pilot scale system that can continuously collect noise data to assess noise levels accurately for real-time monitoring of environmental noise, focusing on hardware and software aspects and potential applications. The system permits the transfer of measurement data to the central server computer, with storage and display there, with the code written using Python. This system includes Web integration, with open source technologies to provide data access, and is based on Wi-Fi communication and a Control Card with Wi-Fi technology. © 2023 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Noise pollution

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Classification of network slicing threats based on slicing enablers: A survey

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International Journal of Intelligent Networks 2023年第1期4卷 103-112页

作者： Abood, Mohammad J.K. Abdul-Majeed, Ghassan H. PhD Student Dept of Information Networks University of Babylon Iraq Dept of Computer Engineering University of Baghdad Iraq

One of the Main expectation of the 5G environment is supporting various services in many areas such as healthcare, education, energy, streaming, V2X (vehicle to everything) communication, etc. To implement such an expectation, there is a need to assign dedicated resources and functionalities for each service by slicing the network which means creating a virtual network for each service inside a physical network. Each virtual network (Slice) should be isolated from the other virtual network (Slice), and the security of that slice becomes a core issue in most research and studies. In this study, after focusing on security challenges in network slices, we describe the network slicing idea, the isolation concept, and the enablers of the network slicing, as well as the prevention of related attacks, risks, and concerns in each enabler. The research also lists the previous surveys and maps out taxonomies to illustrate the contribution of each survey in presenting threats and attacks against network slicing. © 2023 The Authors

关键词： 5G mobile communication systems

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Application of Machine Learning in Digital Marketing and its Optimization Modeling in Precision Advertising Delivery——Dynamic optimization based on K-Means clustering algorithm and Q-Learning algorithm 24

Application of Machine Learning in Digital Marketing and its...

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2024 International Conference on Digital Economy and Computer Science, DECS 2024

作者： Nu, Zhang Zhou, Wei Changzhou Vocational Institute of Engineering Jiangsu Changzhou China Phd of Lyceum of the Philippines University Manila Philippines

ISBN: (纸本)9798400711855

With the rapid development of digital marketing, precision ad placement has become a key strategy to improve advertising effectiveness. This paper explores the application of machine learning in digital marketing, especially its optimization role in precise ad placement. The article analyzes four core areas: segmenting user groups through K-Means clustering algorithm, personalized ad recommendation with collaborative filtering technology, ad click rate prediction using logistic regression model, and dynamic optimization of ad placement budget through Q-Learning algorithm. Combining these machine learning methods, advertisers can build more intelligent and personalized advertising strategies based on user behavioral data and advertisement effect feedback, thus realizing precise advertisement placement and maximizing benefits. However, issues such as data privacy, algorithmic fairness, and technical scalability remain challenges in digital marketing. In the future, with the popularization of 5G and IoT technologies, the role of machine learning in ad placement will be further strengthened to provide advertisers with more intelligent solutions. © 2024 Copyright held by the owner/author(s).

关键词： Adversarial machine learning

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Stratum ventilation, a novel approach for energy reduction and improving indoor environments 9

Stratum ventilation, a novel approach for energy reduction a...

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9th International Conference on Technology and Energy Management, ICTEM 2024

作者： Afzalian, Mahdi Rateghi, Roya Zolfaghari, Seyed Alireza University of Birjand Phd in Mechanical Engineering Birjand Iran University of Birjand MSc in Mechanical Engineering Birjand Iran University of Birjand Mechanical Engineering Birjand Iran

ISBN: (纸本)9798350329797

Over the past few decades, there has been a heightened recognition of the significance of air quality, comfort, productivity, and health in built environments. As a result, there has been a rise in the need for improved thermal comfort, air quality, and flexible ventilation systems. This research focuses on the analysis of a modeled presentation room facilitated by stratum ventilation as a low-consumption system and determines the indoor conditions. The present occupants numbered 18, and due to the non-uniformity of the conditions, a specific individual occupied zone was considered for each of them. The findings revealed that regardless of the varying distances of occupants from the inlet air diffusers, the implementation of Stratum Ventilation effectively maintained satisfactory levels of comfort. For instance, the maximum temperature difference among occupied zones showed by the results is about 2.6°. The predicted mean vote of all occupants is about 0.2 units. So, this study indicated that stratum ventilation can provide an acceptable non-uniform condition. © 2024 IEEE.

关键词： Indoor air pollution

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Implementation of Six Sigma Methodology in Indian Plastic Manufacturing Industry-A case Study

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Journal of The Institution of Engineers (India): Series C 2025年第1期106卷 299-321页

作者： Patel, Pritesh Desai, Darshak Mechanical Engineering Department PhD Scholar Gujarat Technological University Ahmedabad Drs. Kiran and Pallavi Patel Global University Gujarat Vadodara India University Gujarat Vidhyanagar India

This paper demonstrates the effective application of the Six Sigma DMAIC methodology in a small-scale plastic manufacturing industry to address defects, resolve customer complaints, and enhance overall product quality. Focusing on twocritical plastic components and their assembly, the implementation led to a substantial drop in rejection rates, improved process stability, and a transition from problemsolving to efficient serial production. The methodology incorporated tailored tools and techniques specifically relevant to the plastic injection industry, aiming to reduce defect rates and address root causes of customer complaints, ultimately reducing the risk of losing customers. Key interventions included redesigning components and optimizing the assembly process. Notably, this improvement increased the Sigma level of Component A from 3.4 to 4.36, Component B from 3.56 to 4.46, and the assembly process from 3.36 to 4.27. Economic impacts included a decrease in rejection costs as a percentage of sales by 47.3%, a rework cost reduction of 78.25%, and a total loss reduction of 67.39%. Theinitiative successfully addressed customer complaints, enhanced assembly line efficiency, and maintained competitive pricing with improved quality. Through Six Sigma DMAIC, the company achieved continuous improvement, leading to a notable decrease in customer complaints and enhanced product reliability. © The Institution of Engineers (India) 2024.

关键词： Six sigma

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Framework for Crack-Based Assessment of Existing Lightly Reinforced Concrete Deep Members

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ACI STRUCTURAL JOURNAL 2022年第1期119卷 255-266页

作者： Trandafir, Alexandru N. Palipana, Dhanushka K. Proestos, Giorgio T. Mihaylov, Boyan, I PhD Researcher at the University of Liege Liege Belgium PhD Student at North Carolina State University Raleigh NC Assistant Professor at North Carolina State University Assistant Professor of Civil Engineering at the University of Liege

Throughout the life of existing concrete structures, there is often a need to assess the condition of members exhibiting shear cracks. This paper presents a framework for the crack-based assessment of lightly reinforced concrete deep beams that uses the observed crack geometry in conjunction with the two-parameter kinematic theory to provide member and crack-specific assessments of structural response. The results indicate that the method is able to capture the difference in shear response of nominally identical members that exhibit different crack geometries and is capable of predicting the stress distribution along the critical cracks. This novel approach is then used to examine large-scale deep beam experiments in the literature, and it is shown that the method can capture the response of members presenting different crack shapes with an average experimental-to-predicted ratio for the peak shear force of 1.04 and a coefficient of variation of 3.39%.

关键词： assessment cracks deep concrete members kinematic model shear

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Non-Linear Increase of the Real Contact Area of PMMA Blocks and the Related Contact Model

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Chinese Journal of Mechanical engineering 2025年第1期38卷 261-272页

作者： Zhijun Luo Kai Wu Shaoze Yan Key Laboratory of Tribology in Advanced Equipment School of Mechanical EngineeringTsinghua UniversityBeijing 100084China PhD Innovation Workstation of Unit 96963 of Rocket Application Center Beijing 100085China China Academy of Launch Vehicle Technology Beijing 100076China

Many experiments have supported the contact models,such as the GW and MB models,but the majority of previous validations have been performed under light loads,resulting in a linear relationship between normal force and contact ***,the real contact area fraction should never equal one;there must be a limit smaller than the apparent area,implying that the real contact area cannot increase linearly *** this paper,the real contact area between two polymethylmethacrylate(PMMA)blocks under heavy load is measured using the total reflection method,and the contact area is analyzed using the image processing *** results show that the real contact area increases with normal load linearly in light loads but non-linearly in heavy loads;the number of contact spots increases with load linearly in light loads but also non-linearly in heavy loads,synchronous with the change in the real contact *** GW,MB,and Zhao,Maietta,and Chang(ZMC)models were used to predict the experiment results,but none of them predicted the non-linear stage.A revised GW model based on the bulk deformation hypothesis performs better in predicting the non-linear *** study’s findings can be applied to PMMA or other similar materials,and they can serve as a useful reference for future research on the contact mechanisms of other materials.

关键词： Real contact area GW model MB model Total reflection Non-linear increase

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A Study on Temporal Health of Mangrove Forest to Identify the Pattern of Degradation and Subsequent Management Options for Indian Sundarbans Using Geo-Informatics

A Study on Temporal Health of Mangrove Forest to Identify th...

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International Conference on Knowledge Transfer in the Sustainable Rehabilitation and Risk Management of the Built Environment, KNOW-RE-BUILT 2021

作者： Chatterjee, Sweta Bhandari, Gupinath PhD Research Scholar School of Water Resources Engineering Jadavpur University Kolkata700032 India Department of Civil Engineering Jadavpur University Kolkata700032 India

ISBN: (纸本)9783031434549

The present research study is associated with the study of mangrove ecosystem of Indian Sundarbans encompassing the change detection analysis of the continued mangrove degradation using geo-informatics giving a temporal health layout of mangroves also recommending subsequent management strategies for preventing existing and further mangrove degradation. Supervised classification using MLC algorithm is used to ascertain that land cover classes are Dense Forest, Degraded Forest, Tidal Creek, Water Body and Open Land that entails the changes in areal coverage e.g. dense forest area declined by 34.16% (1989–2008) and increased slightly by 18.65% (2008–2020), degraded forest area drastically increased by 316.51% (1989–2008) and decreased by 46.90% (2008–2020);Tidal creek area declined by 30.04% (1989–2008) and increased by 180.48% (2008–2020);water body area increased by 13.2% (1989–2008)and declined by 18.85% (2008–2020);open land area declined by 16.59% (1989–2008) and increased by 24.27% (2008–2020).Several vegetation indices were used to assess the health conditions of mangrove which entails that major stressed and deteriorated mangrove cover lies at the western part of Indian Sundarbans. Present study also recommended proper and genuine conservation measures e.g. mangrove regeneration techniques so that future researchers can start over from this section and make a great orientation towards mangrove restoration against the mangrove degradation irrespective of mangrove’s temporal health conditions. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Ecosystems

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