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13th IEEE Power and Energy Society: Innovative Smart Grid Technologies - Asia, ISGT Asia 2024

作者： Tamura, Fumiki Yokogawa, Shinji Hayase, Shuzi Nakamura, Masaki Hirami, Tomoyuki Hirotani, Daisuke Sono, Yuya Takenoya, Toshihiro Nomura, Daishiro Nomura, Takatoshi Hayashi, Masahiro Honma, Kento The University of Electro-Communications Graduate School of Informatics and Engineering Department of Informatics Tokyo Japan The University of Electro-Communications Info-Power Energy System Research Center Tokyo Japan Ushio Inc Marketing Division Climate Solution Department Japan Marketing Division Ushio Inc Global Warming Solution Group Climate Solution Department Japan Fujico CO. Ltd Technology Development Center Japan Ckd Corporation New Business Development Office Japan The University of Electro-Communications Informatics and Computer Engineering Tokyo Japan

ISBN: (纸本)9798350373929

In urban areas of Japan, such as Tokyo, overcrowding in condominiums and office buildings leaves limited flat land for installing solar panels, resulting in inadequate installation of renewable energy. To advance photovoltaic power generation and support Japan's goal of achieving carbon neutrality by 2050, we are exploring the use of cylindrical solar cells in these dense urban settings. Cylindrical solar cells are ideal for metropolitan installations due to their lightweight design and wind resistance. However, it is crucial to consider how installation configurations influence electricity production, especially the need to minimize shadowing from nearby buildings and other urban elements. This study utilized lighting simulation software to model the light flux based on actual installation conditions of cylindrical solar cells to identify optimal placement strategies. Additionally, this configuration was compared with traditional flat-plate solar cells under similar conditions. Findings indicate that cylindrical solar cells offer flexible installation options. Notably, employing a horizontal grid layout for cylindrical cells addresses the challenges associated with wall-mounted flat-plate cells, which suffer reduced luminous flux at higher solar altitudes. These results demonstrate that cylindrical solar cells can effectively overcome the challenges of photovoltaic installation in densely populated urban areas. © 2024 IEEE.

关键词： Apartment houses

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Multiclass Stomach Diseases Classication Using Deep Learning Features Optimization

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computers, Materials & Continua 2021年第6期67卷 3381-3399页

作者： Muhammad Attique Khan Abdul Majid Nazar Hussain Majed Alhaisoni Yu-Dong Zhang Seifedine Kadry Yunyoung Nam Department of Computer Science HITEC UniversityTaxila47040Pakistan College of Computer Science and Engineering University of Ha’ilHa’ilSaudi Arabia Department of Informatics University of LeicesterLeicesterUK Department of Mathematics and Computer Science Faculty of ScienceBeirut Arab UniversityLebanon Department of Computer Science and Engineering Soonchunhyang UniversityAsanKorea

In the area of medical image processing,stomach cancer is one of the most important cancers which need to be diagnose at the early *** this paper,an optimized deep learning method is presented for multiple stomach disease *** proposed method work in few important steps—preprocessing using the fusion of ltering images along with Ant Colony Optimization(ACO),deep transfer learning-based features extraction,optimization of deep extracted features using nature-inspired algorithms,and nally fusion of optimal vectors and classication using Multi-Layered Perceptron Neural Network(MLNN).In the feature extraction step,pretrained Inception V3 is utilized and retrained on selected stomach infection classes using the deep transfer learning *** on,the activation function is applied to Global Average Pool(GAP)for feature ***,the extracted features are optimized through two different nature-inspired algorithms—Particle Swarm Optimization(PSO)with dynamic tness function and Crow Search Algorithm(CSA).Hence,both methods’output is fused by a maximal value approach and classied the fused feature vector by *** datasets are used to evaluate the proposed method—CUI WahStomach Diseases and Combined dataset and achieved an average accuracy of 99.5%.The comparison with existing techniques,it is shown that the proposed method shows signicant performance.

关键词： Stomach infections deep features features optimization fusion classication

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An Uncertainty Based Predictive Analysis of Smart Water Distribution System Using Bayesian LSTM Approach 6

An Uncertainty Based Predictive Analysis of Smart Water Dist...

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6th IEEE International Conference on Universal Village, UV 2022

作者： Zaman, Mostafa Islam, Maher Al Tantawy, Ashraf Abdelwahed, Sherif Virginia Commonwealth University Department of Electrical and Computer Engineering Richmond United States De Montfort University School of Computer Science and Informatics Leicester United Kingdom

ISBN: (纸本)9781665474771

A well-designed water distribution system is crucial for maintaining high service standards in any modern smart city. Moreover, as the population is sky-rocketing, the demand for energy and water is increasing more rapidly than a decade before. Therefore, ensuring a steady clean water supply with optimized energy and water consumption has become necessary. To accurately monitor water distribution systems, the accuracy of input data plays a vital role in determining how accurate the system's status estimations are. There must be a way for system operators to know what is going on at any given time to make practical decisions about how reliable the data they are receiving is. The input data uncertainty can induce flow and pressure calculation inaccuracies, which can be fatal while planning for future demands and needs to be *** the degree of uncertainty in predicting the water distribution system's capacity or load can help people better prepare for future capacity or load predictions. Accurate uncertainty calculations are critical to time series forecasting. Probabilistic formulae are widely employed with classical time series models to estimate uncertainty. But incorporating new data and fine-tuning these models is a challenging task. This research paper presents a Bayesian LSTM network that computes both time series prediction and uncertainty assessment at the same time. In this paper, a real-time data set from VCU's OpenCity test bed is employed to evaluate the efficacy of the suggested strategy. © 2022 IEEE.

关键词： Water distribution systems

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Simultaneous Multi-User MIMO Communications and Multi-Target Tracking with Full Duplex Radios

Simultaneous Multi-User MIMO Communications and Multi-Target...

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2022 IEEE GLOBECOM Workshops, GC Wkshps 2022

作者： Islam, Md Atiqul Alexandropoulos, George C. Smida, Besma University of Illinois Department of Electrical and Computer Engineering Chicago United States National and Kapodistrian University of Athens Department of Informatics and Telecommunications Athens Greece

ISBN: (纸本)9781665459754

In this paper, we present an Integrated Sensing and Communications (ISAC) system enabled by in-band Full Duplex (FD) radios, where a massive Multiple-Input Multiple-Output (MIMO) base station equipped with hybrid Analog and Digital (A/D) beamformers is communicating with multiple DownLink (DL) users, while simultaneously estimating, via the same signaling waveforms, the Direction of Arrival (DoA) as well as the range of radar target, which are randomly distributed within its coverage area. Capitalizing on a recent reduced-complexity FD hybrid A/D beamforming architecture, we devise a joint radar target tracking and DL data transmission protocol. An optimization framework for the joint design of the massive A/D beamformers and the self-interference cancellation unit, with the dual objective of maximizing the radar tracking accuracy and DL communication performance, is presented. Our simulation results at millimeter wave frequencies using 5G NR wideband waveforms, showcase the accuracy of the radar target tracking performance of the proposed system, which simultaneously offers increased sum rate compared with benchmark schemes. © 2022 IEEE.

关键词： Millimeter waves

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Machine Learning Techniques for Sensor-based Human Activity Recognition with Data Heterogeneity - A Review

arXiv

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arXiv 2024年

作者： Ye, Xiaozhou Sakurai, Kouichi Nair, Nirmal Wang, Kevin I-Kai Department of Electrical Computer and Software Engineering The University of Auckland New Zealand Department of Informatics Kyushu University Japan

Sensor-based Human Activity Recognition (HAR) is crucial in ubiquitous computing, analysing behaviours through multi-dimensional observations. Despite research progress, HAR confronts challenges, particularly in data distribution assumptions. Most studies often assume uniform data distributions across datasets, contrasting with the varied nature of practical sensor data in human activities. Addressing data heterogeneity issues can improve performance, reduce computational costs, and aid in developing personalized, adaptive models with less annotated data. This review investigates how machine learning addresses data heterogeneity in HAR, by categorizing data heterogeneity types, applying corresponding suitable machine learning methods, summarizing available datasets, and discussing future challenges. © 2024, CC BY.

关键词： Ubiquitous computing

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Performance and Implementation Comparison of Knuth-Morris-Pratt and Boyer-Moore String Search Algorithms

Performance and Implementation Comparison of Knuth-Morris-Pr...

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Advanced Innovations in Smart Cities (ICAISC), International Conference on

作者： Taj Saleh Fatma Corut Ergin Malek Malkawi Reda Alhajj Department of Computer Engineering Marmara University Istanbul Turkey Department of Computer Engineering Istanbul Medipol University Istanbul Turkey Department of Computer Science University of Calgary Alberta Canada Department of Heath Informatics University of Southern Denmark Odense Denmark

ISBN: (数字)9798331506995

ISBN: (纸本)9798331507008

String search algorithms play an important role in many research areas such as data mining and bioinformatics. While there exist a number of algorithms that handles the topic, we are exploring the the Knuth-Morris-Pratt (KMP) and Boyer-Moore algorithms due to their efficiency and versatility. In this work, we compared the algorithms in terms of characteristics, performance and implementation details. We also tested both the algorithms with various patterns and texts that differs in size. We also analyzed the performance of the algorithms on 4 different processors to understand the technological advancements effects on their performance. Our findings suggest that the BM algorithm perform better with large texts and patterns, while the KMP algorithm is better suited for smaller ones. Also, while newer processor generally exhibit improved performance, the significance of these enhancements may vary. Thus, we should rather be looking specific architectural advancements within generations rather than focusing solely on the generational gap.

关键词： Technological innovation Program processors Smart cities Focusing Data mining Bioinformatics Pattern matching

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Data Hiding Scheme using Difference Expansion and Modulus Function 2

Data Hiding Scheme using Difference Expansion and Modulus Fu...

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2nd International Conference for Innovation in Technology, INOCON 2023

作者： Hossen, Md. Sagar Ahmad, Tohari Croix, Ntivuguruzwa Jean De La Institut Teknologi Sepuluh Nopember Department of Informatics Surabaya Indonesia Daffodil International University Department of Computer Science and Engineering Dhaka Bangladesh University of Rwanda African Center of Excellence in Internet of Things Kigali Rwanda

ISBN: (纸本)9798350320923

Our information is constantly under threat when transmitted through public networks. So, research to keep information secret has been carried out. Mainly, steganography, which consists of hiding data in digital media, receives much attention. Existing steganographic systems identified the need to improve performance by reducing a tradeoff between the peak signal-to-noise ratio (PSNR) and bits per pixel (BPP). In this paper, we propose a new steganographic scheme to embed the bits of secret messages in a digital image's pixels. Our method expands the differences between the neighbouring pixels for secret data concealment. We group the pixels in blocks of size 1×3, and two of the three pixels of the block are candidates to hold the secret bit. We also propose extracting the hidden data to validate our data concealment scheme. To extract the secret data, we also arrange the neighbouring pixels into blocks of three and use their differences, and a modulus function, based on pixels identified carrying the secret data based on the key generated during data concealment. To evaluate the performance of our scheme, we consider the PSNR and the BPP as metrics. The experimental results showed better performance over the existing methods with 68.7790 dB for the PSNR and 0.1562 BPP. © 2023 IEEE.

关键词： Pixels

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UMUX and UMUX-Lite as Usability Assessment for Smart Door Lock Systems

UMUX and UMUX-Lite as Usability Assessment for Smart Door Lo...

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Information Technology and Computing (ICITCOM), International Conference on

作者： Indra Hermawan Rizki Elisa Nalawati Prihatin Oktivasari Ratna Widya Iswara Informatics and Computer Engineering Department Politeknik Negeri Jakarta Depok Indonesia

Smart Door Lock System is used to protect priceless and prevent unwanted access to a room. A usability evaluation is required to raise the system's usability level because it will help to decide how acceptable the system is. UMUX, UMUX-Lite, and SUS comparative ratings are used to gauge the usability level. The System Usability Score (SUS) has more questions than the UMUX and UMUX-Lite approaches. The general degree of acceptance of this system was deemed to be acceptable during the system's evaluation period. With an average UMUX score of 68,1, which is in the marginal category, the UMUX-LITe score is 77.3, which is categorized as acceptable, and the SUS comparison score is 73.0, which is categorized as acceptable.

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Determination of Admissible Power and Digital Filtering Algorithm Development of Discretely Regulated Autonomous Induction Generators 4

Determination of Admissible Power and Digital Filtering Algo...

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4th IEEE KhPI Week on Advanced Technology, KhPI Week 2023

作者： Shurub, Yuriy Morozov-Leonov, Oleksandr Department of Electromechanical Systems Institute of Electrodynamics of the National Academy of Sciences of Ukraine Kiev Ukraine Department of Informatics and Computer Engineering National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" Kiev Ukraine

ISBN: (纸本)9798350395532

Autonomous induction generators have such advantages as simplicity of design and high reliability. For a number of generators based on general industrial induction motors, their admissible capacities were determined according to the criterion of permissible thermal load of the stator winding. A digital filtering algorithm was developed for discrete adjustment of the capacitance of the excitation system under the conditions of stochastic load, which allows to avoid rattling of contacts at switching points. © 2023 IEEE.

关键词： Induction motors

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A New Handover Management Model for Two-Tier 5G Mobile Networks

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computers, Materials & Continua 2022年第6期71卷 5491-5509页

作者： Mohammad Arifin Rahman Khan Mohammed Golam Kaosar Mohammad Shorfuzzaman Kire Jakimoski Department of Computer Science and Engineering Bangladesh UniversityDhaka1207Bangladesh Discipline of IT Media and CommunicationsMurdoch UniversityPerthWA6150Australia Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Faculty of Informatics AUE-FON UniversitySkopjeRepublic of North Macedonia

There has been an exponential rise in mobile data traffic in recent times due to the increasing popularity of portable devices like tablets,smartphones,and *** rapid rise in the use of these portable devices has put extreme stress on the network service providers while forcing telecommunication engineers to look for innovative solutions to meet the increased *** solution to the problem is the emergence of fifth-generation(5G)wireless communication,which can address the challenges by offering very broad wireless area capacity and potential cut-power *** application of small cells is the fundamental mechanism for the *** use of small cells can enhance the facility for higher capacity and ***,it must be noted that small cells deployment will lead to frequent handovers of mobile *** the importance of small cells in 5G,this paper aims to examine a new resource management scheme that can work to minimize the rate of handovers formobile phones through careful resources allocation in a two-tier ***,the resource management problem has been formulated as an optimization issue thatwe aim to overcome through an optimal *** find a solution to the existing problem of frequent handovers,a heuristic approach has been *** solution is then evaluated and validated through simulation and testing,during which the performance was noted to improve by 12%in the context of handover ***,this model has been observed to be more efficient as compared to the existing model.

关键词： Two-tier mobile networks small cell densification management of mobility handover cost average throughput power consumption

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