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24th International Conference on Intelligent Data engineering and Automated Learning, IDEAL 2023

作者： Torregrosa, Javier Panizo-LLedot, Ángel D’Antonio-Maceiras, Sergio Camacho, David Department of Computer System Engineering Universidad Politécnica de Madrid Calle de Alan Turing Madrid28031 Spain

ISBN: (纸本)9783031482311

The Manosphere movement and its subgroups have garnered the attention of researchers seeking deeper insights into their dynamics. This study specifically focuses on a particular subgroup within the Manosphere called Pick Up Artists (PUAs). PUAs concentrate on teaching heterosexual men sexual seduction techniques to attract women, often promoting a clear objectifying and sexist perspective. The primary goal of this research is to explore whether users who engage more with the PUA community tend to adopt the typical Manosphere discourse. To achieve this objective, we aim to measure the relationship between linguistic features and the number of relevant Pick-Up Artist accounts followed by a user. Four linguistic features were considered: sexist language, misogyny, use of slang, and Manosphere topics. To assess these linguistic features, we employ relevant state-of-the-art tools, including various classifiers to identify misogynistic and sexist content, topic extraction techniques like BERTopic, and dictionaries containing typical Manosphere slang. The results of our analysis indicate a moderate correlation between the presence of misogynistic/sexist content and the number of accounts followed. However, we did not find a similar correlation with the other variables. This could indicate that the amount of relevant accounts followed does not influence the discourse of an account. Nevertheless, further research is necessary to gain a better understanding of the typical discourse within the PUAs subculture of the Manosphere as the tools used in this study do not seem to clearly identify the expected discourse. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

关键词： Pickups

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Analysis of the Characteristics of a Dualchannel Three-phase Induction Motor 36

Analysis of the Characteristics of a Dualchannel Three-phase...

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36th International Conference on Electrical Drives and Power Electronics, EDPE 2023

作者： Korkosz, Mariusz Kutsyk, Andriy Krzywdzinska-Kornak, Krystyna Suliga, Mateusz Semeniuk, Mykola Rzeszow University of Technology Faculty of Electrical and Computer Engineering Rzeszow Poland Lviv Polytechnic National University Institute of Power Engineering and Control System Lviv Ukraine

ISBN: (纸本)9798350322750

The paper analyzes the characteristics of a dual-channel three-phase induction motor. Motors designed for multi-channel power supply are dedicated to applications requiring greater reliability. Each channel allows a certain degree of increase in the ability to continue operation after the failure states. The use of a dual channel power supply is the most common way to increase drive train redundancy. This paper presents the tests of the behaviour of a dual-channel three-phase induction motor in the event of loss of power to one of the phases (in one or two channels) and single-channel operation. A correctly designed motor allows for continuous operation in single-channel power mode. Numerical and laboratory tests confirmed this assumption. It has been demonstrated that the loss of power to one phase of a channel should result in the channel being turned off. © 2023 IEEE.

关键词： Fault tolerance

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Impact of Centralized and Distributed Control Structures on the Harmonic Stability of Modular Multilevel Converter Based on DQ Reference Frame Impedance Assessment 11

Impact of Centralized and Distributed Control Structures on ...

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11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia

作者： Isik, Semih Bhattacharya, Subhashish Freedm System Center North Carolina State University Department of Electrical and Computer Engineering RaleighNC27606 United States

ISBN: (纸本)9788957083505

The Modular Multilevel Converter (MMC) is one of the suitable converter topologies for medium to high-voltage industry applications. Despite the inherent modularity and redundant structure of the MMC topology, most MMC controllers are designed based on a centralized controller structure. Even though a centralized controller inherently limits the hardware flexibility of an MMC, it is relatively faster than distributed control algorithms due to less communication and control delays. Both control structures have pros and cons, but the design of the controller may cause instability at specific frequencies when interfaced with an AC or DC grid due to control gains, delays etc. This paper investigates the effects of the control delays of the distributed controller on system stability and compares it with the centralized controller. An MMC and its controller are modeled in a Hardware-in-Loop environment with the Real Time Digital Simulator to analyze potential DC resonant frequencies in the dq reference frame. Passivity theory isapplied to the extracted frequency response to predict possible passive and non-passive regions based on control structures. © 2023 The Korean Institute of Power Electronics.

关键词： Controllers

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Research on Infrared Detection Capability of Ships Based on Orthogonal Test

Research on Infrared Detection Capability of Ships Based on ...

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2023 International Conference on computer, Internet of Things and Smart City, CIOTSC 2023

作者： Liu, Geng Luo, Ruihan Li, Shunmin Wu, Yanxia Zhao, Junhua China State Shipbuilding Corporation Limited System Engineering Research Institute Beijing China Harbin Engineering University College of Computer Science and Technology Harbin China

ISBN: (纸本)9798350306569

The development of modern marine technology promotes frequent marine activities and marine traffic, and at the same time brings maritime security issues that cannot be ignored. Traditional optical and radio detection technologies are usually affected by many factors, and the detection effect is poor in bad weather and nighttime environments. In order to improve maritime safety requirements, infrared camera detection is regarded as an effective supplementary means. Considering that the current infrared detection capability is relatively weak, an orthogonal experimental design method is proposed. Through simulation, it is obtained that the detection distance is 120km of A at level 1, the spatial angle is 30-60° of B at level 2, the camera angle of view is the elevation angle of C at level 1, and the scanning period is D at level 3. The combination of 5s is the combination with the best recognition efficiency among the combinations of each factor level, that is, A1B2C1D3. First, briefly introduce the working principle of offshore infrared camera detection and the steps of orthogonal test design, then determine the level of factors that affect the detection ability, and design a factor level table. On this basis, the orthogonal test design was carried out, and 27 sets of test results were obtained. Finally, through the analysis and verification of the test results, the primary and secondary order of the factors affecting the detection ability were obtained, and then the optimal detection scheme was obtained. © 2023 IEEE.

关键词： Infrared detectors

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Torque Control of PMSMs Suffering from PM Edge Demagnetization

Torque Control of PMSMs Suffering from PM Edge Demagnetizati...

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2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

作者： Orviz, Marcos Tiemblo, Javier G. Reigosa, David Jeong, Jigyun Lee, Sang Bin Briz, Fernando University of Oviedo Dept of Elect. Computer & System Engineering Gijón33204 Spain Korea University Department of Electrical Engineering Seoul Korea Republic of

ISBN: (纸本)9798350316445

The combination of high stator currents and rotor temperatures in PMSMs can lead to PM edge demagnetization (ED). This will produce a torque derating as well as a displacement of the rotor magnetic dq- axes. Under these circumstances, optimized torque trajectories, e.g., maximum-torque-per-ampere (MTPA), maximum-torque-per-voltage (MTPV) or maximum-torque-per-flux (MTPF), can be altered. This paper analyzes the effects of edge demagnetization on torque production capability and control performance. The use of a search coil (SC) is proposed for on-line edge demagnetization detection and control reconfiguration. © 2023 IEEE.

关键词： edge demagnetization MTPA permanent magnet search coil torque

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Deployment of Polar Codes for Mission-Critical Machine-Type Communication Over Wireless Networks

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computers, Materials & Continua 2022年第4期71卷 573-592页

作者： Najib Ahmed Mohammed Ali Mohammed Mansoor Rodina Binti Ahmad Saaidal Razalli Bin Azzuhri Department of Software Engineering Faculty of Computer Science and Information TechnologyUniversity of Malaya50603Kuala Lumpur Malaysia 2Department of Computer System&TechnologyFaculty of Computer Science and Information TechnologyUniversity of Malaya50603Kuala LumpurMalaysia

Mission critical Machine-type Communication(mcMTC),also referred to as Ultra-reliable Low Latency Communication(URLLC),has become a research *** is primarily characterized by communication that provides ultra-high reliability and very low latency to concurrently transmit short commands to a massive number of connected *** the reduction in physical(PHY)layer overhead and improvement in channel coding techniques are pivotal in reducing latency and improving reliability,the current wireless standards dedicated to support mcMTC rely heavily on adopting the bottom layers of general-purpose wireless standards and customizing only the upper *** mcMTC has a significant technical impact on the design of all layers of the communication protocol *** this paper,an innovative bottom-up approach has been proposed for mcMTC applications through PHY layer targeted at improving the transmission reliability by implementing ultra-reliable channel coding scheme in the PHY layer of IEEE 802.11a standard bearing in mind short packet transmission *** achieve this aim,we analyzed and compared the channel coding performance of convolutional codes(CCs),low-density parity-check(LDPC)codes,and polar codes in wireless network on the condition of short data packet *** Viterbi decoding algorithm(VA),logarithmic belief propagation(Log-BP)algorithm,and cyclic redundancy check(CRC)successive cancellation list(SCL)(CRC-SCL)decoding algorithm were adopted to CC,LDPC codes,and polar codes,***,a new PHY layer for mcMTC has been *** reliability of the proposed approach has been validated by simulation in terms of Bit error rate(BER)and packet error rate(PER)***-to-noise ratio(SNR).The simulation results demonstrate that the reliability of IEEE 802.11a standard has been significantly improved to be at PER=10−5 or even better with the implementation of polar *** results also show that the general-purpose wireless net

关键词： Machine-type communication mission-critical applications MTC URLLC M2M wireless networks polar codes

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Modeling and Optimal Control for Resource Allocation in the Epidemic Monitoring of a Multi-group Population

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SN computer Science 2024年第1期5卷 121页

作者： Di Giamberardino, Paolo Iacoviello, Daniela Papa, Federico Department of Computer Control and Management Engineering “A. Ruberti” Sapienza University of Rome Via Ariosto 25 Rome 00185 Italy Institute for System Analysis and Computer Science “A. Ruberti” CNR Via dei Taurini 19 Rome 00185 Italy

In the last 3 years, the entire world has been facing the sanitary emergency due to the SARS-CoV2;it has been stressed the mutual interdependence of the human populations, as well as the strong impact of specific conditions, such as age, work, habits, on the disease spread among subgroups of a given population. Moreover, the high percentage of asymptomatic individuals, especially among young subjects, improves the infection spread among groups with higher probability of fatal consequences. The vaccination campaign has strongly contributed to reduce mortality, so bringing the epidemic scenario probably closer to the endemic state. Nevertheless, the loss of the vaccination protection, the appearance of new variants and the mixing of moving people require a surveillance action to reduce new virus waives. By suitable modeling and optimal control design, this paper addresses the planning of a swab test campaign for the surveillance of the disease spread within a given multi-group population, when resource limitation and distinctive epidemiological characteristics of the subgroups are present. The proposed approach, applied on a case study in which the population is split into four groups, stresses the importance of a suitable tuned swab test campaign, saving a significant number of infections (and therefore of human lives), by scheduling the surveillance effort on the different populations. The determination of this kind of control is useful not only in the endemic condition, but also as general surveillance strategy at the beginning of an epidemic spread, with limitations in material and logistic resources. © 2023, The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd.

关键词： Epidemic monitoring Mathematical modeling of epidemics Optimal control Resource allocation

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Pulsed ToF LiDAR-Based Depth Imaging: SPAD Circuit Considerations and Simulation Study 66

Pulsed ToF LiDAR-Based Depth Imaging: SPAD Circuit Considera...

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2023 IEEE 66th International Midwest Symposium on Circuits and systems, MWSCAS 2023

作者： Noyan, Utku Lu, Sheung Al-Shabili, Abdullah Dandin, Marc Chan, Stanley H. Abshire, Pamela University of Maryland Department of Electrical and Computer Engineering Institute of System Research College ParkMD United States Purdue University Department of Electrical and Computer Engineering West LafayetteIN United States Carnegie Mellon University Department of Electrical and Computer Engineering PittsburghPA United States

ISBN: (纸本)9798350302103

Pulsed Time-of-Flight (ToF) LiDAR is a crucial technology for acquiring depth information in various applications, including autonomous vehicles, robotics, and 3D mapping. Single-Photon Avalanche Diodes (SPADs) are widely employed as detectors in these systems due to their fast response and high sensitivity. This paper investigates pulsed ToF LiDAR-based depth imaging to clarify the hardware design considerations that affect depth estimation accuracy. We present a simulation study that investigates the performance of SPAD-based LiDAR systems under various conditions, offering insights into the design of SPAD circuits for improved depth imaging performance. We find that, as expected, accuracy and depth resolution depend strongly on the fill factor, with accuracy decreasing as the fill factor drops, gradually at first and then more steeply for fill characteristics of less than 50%. Lastly, we discuss the outcomes of our simulations and suggest directions for future research in this area. © 2023 IEEE.

关键词： Autonomous vehicles Circuit considerations Depth imaging Pulsed Time-of-Flight (ToF) LiDAR Single-Photon Avalanche Diodes (SPADs)

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Authenticating Smartphone Users Continuously Even if the Smartphone is in the User’s Pocket 1

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1st International Conference on Advanced Computing, Machine Learning, Robotics and Internet Technologies, AMRIT 2023

作者： Dutta, Sandip Roy, Soumen Roy, Utpal Department of Computer and System Sciences Visva-Bharati West Bengal Santiniketan731235 India Department of Computer Science and Engineering University of Calcutta Acharya Prafulla Chandra Roy Siksha Prangan JD - 2 Sector - III Saltlake City West Bengal Kolkata7000106 India Department of Computer and System Sciences Visva-Bharati West Bengal Santiniketan731235 India

ISBN: (数字)9783031472213

ISBN: (纸本)9783031472206

Users often underestimate the power and utility of smartphones, as they are unaware of the wide range of intelligent sensors that are now built-in into them. Smartphones are equipped with a wide array of sensors, including accelerometers, gyroscopes, magnetometers, barometers, pedometers, etc. These sensors are continuously active whenever the phone is turned on. Our study examines the way in which a smartphone can authenticate a user in a continuous and automatic manner, without requiring their awareness. To achieve this goal, we have created a moderate-sized human gait database that comprises data from 63 volunteers, taking into account their ages, genders, educational levels, professions, and backgrounds. In order to create this database, a web-based application was used to utilize the sensors on smartphones to capture human gaits. To determine which algorithm is most effective at verifying users based on their gait patterns, we analyzed the dataset here using ten popularly known anomaly detection algorithms. We found that one-class support vector machines (OCSVMs) are the most powerful for verifying users based on gait, with an average Equal Error Rate (EER) of 0.0043. It has been also identified that the EER has been reduced from 0.0043 to 0.0013 when soft biometric traits like gender, education level, and age group information are incorporated. We have proposed research directions to develop and implement this technology, and we believe it has practical applications. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Smartphones

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Comparator Design Resistance Mitigation by using Cadence Virtuoso Tools in 45 Nanometer Process Technology

Comparator Design Resistance Mitigation by using Cadence Vir...

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2023 IEEE International Conference on Sensors and Nanotechnology, SENNANO 2023

作者： Syn Yi, Michelle Ang Hussin, Razaidi Rokhani, Fakhrul Zaman University Malaysia Perlis Faculty of Electronic Engineering Technology Arau Malaysia University Putra Malaysia UPM Department of Computer and Communications System Engineering Serdang Malaysia

ISBN: (纸本)9798350333312

This paper presents the resistance mitigation techniques for comparator design. Resistance plays an important role to semiconductor field. If resistance value higher than the design specification value, this might cause the electronic device burning and destroy. This project implements the techniques to mitigate resistance for the comparator design layout which are using multiple metal layers for routing, routing track improvement, increase metal width, increase number of vias and using higher metal layer for routing by using Cadence Virtuoso tools in 45 nanometer process technology. Based on the result, the total percentage for resistance mitigation for using multiple metal layers for routing is 73.66%, routing track improvement is 67.67%, increase metal width is 51.74%, increase number of vias is 50% and using higher metal layer for routing is 18.79%. © 2023 IEEE.

关键词： Comparators (optical)

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