Article
Chemistry, Multidisciplinary
Dalia Yousri, Magdy B. Eteiba, Ahmed F. Zobaa, Dalia Allam
Summary: Novel variants of Chaotic Ensemble Particle Swarm Optimizer (C.EPSO) are proposed in this paper, incorporating ten chaos maps into the EPSO to enhance its performance. The results suggest that the variant utilizing the Gauss/mouse map is most suitable for estimating the parameters of PMSM models, offering better accuracy, consistency, and convergence speed.
APPLIED SCIENCES-BASEL
(2021)
Article
Mathematics
Qijia Yao, Hadi Jahanshahi, Stelios Bekiros, Jinping Liu, Abdullah A. Al-Barakati
Summary: This article proposes an adaptive control strategy for achieving fixed-time chaotic stabilization of PMSM, even in the presence of unknown parameters and perturbations. The developed controller combines a parametric adaptive mechanism with a fixed-time control technique, and the stability analysis demonstrates its effectiveness.
Article
Engineering, Electrical & Electronic
Jay A. Shah, Samuel R. Miller, Shaphan R. Jernigan, Gregory D. Buckner
Summary: This paper presents the design, fabrication, and experimental testing of spherical motors for multi-degree-of-freedom servo-actuation. The motors overcome the limitations of conventional actuators by optimizing the stator-pole arrangement, stator geometry, and winding configurations. Experimental results demonstrate the effectiveness of the motors in achieving time-varying reference trajectories.
Article
Engineering, Multidisciplinary
Hanjie Ma, Lei Xiao, Zhongyi Hu, Ali Asghar Heidari, Myriam Hadjouni, Hela Elmannai, Huiling Chen
Summary: Feature selection is a data pre-processing method used in bioinformatics, finance, and medicine to reduce dataset dimensionality. Traditional approaches struggle with high-dimensional information. We propose an enhanced Whale Optimization Algorithm (SCLWOA) that incorporates sine chaos and comprehensive learning strategies to improve feature selection and algorithm performance.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Acoustics
Rongyun Zhang, Changfu Gong, Peicheng Shi, Linfeng Zhao, Changsheng Zheng
Summary: This article introduces a method for chaos control of a permanent magnet synchronous motor using synthetic sliding mode control. By establishing the mathematical model of the motor and analyzing chaos, the system decoupling is achieved through an inverse system approach. Experimental tests in MATLAB/Simulink software validate the proposed control system's ability to effectively eliminate chattering and manage chaos in the motor system.
JOURNAL OF VIBRATION AND CONTROL
(2021)
Article
Engineering, Electrical & Electronic
Dianxun Xiao, Shamsuddeen Nalakath, Silvio Rotilli Filho, Gaoliang Fang, Alice Dong, Yingguang Sun, Jason Wiseman, Ali Emadi
Summary: This article introduces a general-purpose full-speed sensorless control scheme for IPMSMs using a QBEMF model for a universal control strategy. The QBEMF model acts as a self-demodulator at low speed to extract position information from high-frequency currents without digital filters. At high speed, the same QBEMF model can be used for position estimation, solving the conventional transition issue from low-speed to high-speed sensorless control.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Energy & Fuels
Shuai Zhou, Dazhi Wang
Summary: Accurately estimating PMSM parameters is crucial for achieving high performance operation. To overcome the issue of local optimal solution in the parameter identification process, a modified fuzzy particle swarm optimization (MDFPSO) is proposed, which considers the influence of surrounding particles on each particle's speed, ensuring improved accuracy and convergence. Simulation results demonstrate the effectiveness of the MDFPSO algorithm for PMSM parameter identification.
Article
Energy & Fuels
In-Jun Yang, Si-Woo Song, Dong-Ho Kim, Kwang-Soo Kim, Won-Ho Kim
Summary: This study introduces a new rotor configuration in an interior permanent magnet synchronous motor using a plastic barrier to fix the magnet and prevent ferrofluid leakage, aiming to enhance torque density through ferrofluid injection into the magnet tolerance. The analysis, conducted using finite element analysis (FEA), confirms that the no-load back electromotive force increases in the final model after ferrofluid injection, which is verified by comparing simulation and experimental results.
Article
Engineering, Electrical & Electronic
Liqian Cao, Zhong Wu
Summary: An online demagnetization detection method based on flux observer is proposed in this paper, which evaluates the performance of permanent magnets and tracks the amplitude of harmonic flux to comprehensively evaluate the severity of demagnetization.
Article
Automation & Control Systems
Qiang Tan, Mingyi Wang, Liyi Li, Junchi Li
Summary: The article presents a segmented permanent magnet linear synchronous motor (S-PMLSM) with noninteger pole number, which has low detent force and high thrust. The noninteger pole structure makes up for the defect that the conventional integer pole structure cannot suppress the harmonics in the detent force, reducing thrust ripple rate. Special winding arrangement with high winding factor is adopted for the noninteger pole structure, enabling decoupling between detent force and cogging force. The results show that the noninteger pole structure removes almost all detent force while providing higher thrust compared to the integer pole structure.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Energy & Fuels
Chaobo Chen, Ye Song, Youmin Zhang, Jiaqiang Tian, Song Gao, Baohua Lang
Summary: This study proposes an adaptive optimization fault tolerant control algorithm for the current control of a five-phase permanent magnet synchronous motor (FPMSM) based on chaotic-particle swarm. The algorithm modifies the matrices and optimizes the current to ensure the motor's performance under fault conditions.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Automation & Control Systems
Sagar Gajanan Petkar, Kusuma Eshwar, Vinay Kumar Thippiripati
Summary: The study proposes an improved MPCC method to enhance the steady-state performance of PMSM by optimizing the selection of voltage vectors to reduce current ripples. The method is based on calculating q-axis current slopes to determine optimal timing.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Energy & Fuels
Xiaokun Zhao, Baoquan Kou, Changchuang Huang, Lu Zhang
Summary: This paper proposes a flux-intensifying permanent magnet synchronous motor (FIPMSM) and its magnetic equivalent circuit (MEC) model. The dynamic MEC model is established and an equivalent reluctance calculation method is used for complex structures. The accuracy of the MEC model is verified through finite element analysis and experiments.
Article
Automation & Control Systems
Zijiao Zhang, Meizhu Luo, Ji-an Duan, Baoquan Kou
Summary: This article proposes a novel secondary topology for high-speed permanent magnet linear synchronous motor (PMLSM) to suppress thrust ripple. The secondary structure adopts multiple permanent magnets to excite the main magnetic field per pole, achieving a magnetic field with excellent sinusoidal features. The influences of the secondary structure on the main magnetic field and thrust properties are analyzed. Comparisons between two PMLSMs with different secondary structures are provided, and prototypes are manufactured and tested to verify the effectiveness of the proposed topology.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Christian Kraemer, Andreas Kugi, Wolfgang Kemmetmueller
Summary: This paper presents a model-based control strategy for shuttle transportation systems using permanent magnet linear synchronous machines. Experimental validation shows that this control concept can accurately control tractive forces and reduce ohmic losses.
Article
Thermodynamics
Dalia Yousri, Hany M. Hasanien, Ahmed Fathy
Summary: The proposal of CLDMMPA provides highly accurate identified parameters for the SOFC model, achieving a close matching between actual and estimated system responses. The algorithm is validated under different operating conditions and exhibits superiority in the dynamic model.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Computer Science, Artificial Intelligence
Dalia Yousri, Mohamed Abd Elaziz, Laith Abualigah, Diego Oliva, Mohammed A. A. Al-qaness, Ahmed A. Ewees
Summary: This study proposes an alternative method for classifying COVID-19 X-ray images by extracting informative features and using a new feature selection method, leveraging an enhanced cuckoo search optimization algorithm and four different heavy-tailed distributions. Experimental results show that the method can provide accurate results for both UCI and COVID-19 datasets.
APPLIED SOFT COMPUTING
(2021)
Article
Thermodynamics
Ahmed Fathy, Dalia Yousri, Turki Alanazi, Hegazy Rezk
Summary: This paper proposes an energy management strategy based on the parasitism-predation algorithm for hybrid renewable energy sources to supply aircraft in emergency situations. The strategy aims to minimize hydrogen consumption and improve aircraft power durability, showing superior efficiency and minimum hydrogen consumption in experimental results.
Article
Automation & Control Systems
Mohamed Abd Elaziz, Dalia Yousri, Mohammed A. A. Al-qaness, Amr M. AbdelAty, Ahmed G. Radwan, Ahmed A. Ewees
Summary: This paper presents a modified version of Manta ray foraging optimizer (MRFO) algorithm enhanced using fractional-order calculus to improve the exploitation ability, confirmed through experiments in global optimization and multilevel image segmentation. The Fractional-order MRFO (FO-MRFO) outperforms compared algorithms in both optimization and image segmentation tasks.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2021)
Article
Environmental Sciences
Mohammed A. A. Al-qaness, Hong Fan, Ahmed A. Ewees, Dalia Yousri, Mohamed Abd Elaziz
Summary: In this study, an improved version of ANFIS called PSOSMA-ANFIS was proposed for forecasting the air quality index in Wuhan City, using a hybrid optimization method combining Slime mould algorithm (SMA) and particle swarm optimizer (PSO) which showed superior performance compared to other algorithms. The study also analyzed the impact of the lockdown on air quality, concluding significant decreases in PM2.5, CO2, SO2, and NO2 concentrations during the lockdown period.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Dalia Yousri, Magdy B. Eteiba, Ahmed F. Zobaa, Dalia Allam
Summary: Novel variants of Chaotic Ensemble Particle Swarm Optimizer (C.EPSO) are proposed in this paper, incorporating ten chaos maps into the EPSO to enhance its performance. The results suggest that the variant utilizing the Gauss/mouse map is most suitable for estimating the parameters of PMSM models, offering better accuracy, consistency, and convergence speed.
APPLIED SCIENCES-BASEL
(2021)
Article
Computer Science, Interdisciplinary Applications
Mohamed Abd Elaziz, Dalia Yousri, Seyedali Mirjalili
Summary: This paper introduces a modified version of the Harris Hawks Optimizer (HHO) which utilizes Fractional-Order Gauss and 2xmod1 Chaotic Maps for generating the initial population, and Moth-Flame Optimization (MFO) operators to enhance exploration. The concept of evolutionary Population Dynamics (EPD) is applied to prevent premature convergence and stagnation in local optima, resulting in the FCHMD algorithm which outperforms other meta-heuristics on the majority of case studies.
ADVANCES IN ENGINEERING SOFTWARE
(2021)
Article
Computer Science, Artificial Intelligence
Mohamed Abd Elaziz, Dalia Yousri
Summary: This paper proposes a modified HGSO method based on enhanced HHO and HTDs to tackle the FS problem. By using a dynamic exchange between five HTDs to boost HHO, the exploitation phase in HGSO is modified. Experimental results show that DHGHHD has higher quality in terms of accuracy, fitness value, and the number of selected features.
ARTIFICIAL INTELLIGENCE REVIEW
(2021)
Article
Thermodynamics
Mohamed Abd Elaziz, Sudhakar Babu Thanikanti, Ibrahim Anwar Ibrahim, Songfeng Lu, Benedetto Nastasi, Majed A. Alotaibi, Md Alamgir Hossain, Dalia Yousri
Summary: The paper proposes an enhanced marine predators algorithm (EMPA) to identify unknown parameters for different photovoltaic (PV) models, showing superior performance in both static and dynamic PV models.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Automation & Control Systems
Dalia Yousri, Seyedali Mirjalili, J. A. Tenreiro Machado, Sudhakar Babu Thanikanti, Osama Elbaksawi, Ahmed Fathy
Summary: This paper proposes a novel approach to enhance the exploratory behavior of the Harris hawks optimizer based on fractional calculus memory concept, resulting in the fractional-order modified Harris hawks optimizer (FMHHO). The sensitivity of algorithm performance to FOC parameters is addressed, with the best variant recommended based on benchmarks. The proposed variant is validated using CEC2017 benchmarks and compared to other techniques through statistical measures and non-parametric tests, showing improved performance and accurate solutions.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2021)
Article
Computer Science, Interdisciplinary Applications
Ahmed A. Ewees, Laith Abualigah, Dalia Yousri, Zakariya Yahya Algamal, Mohammed A. A. Al-qaness, Rehab Ali Ibrahim, Mohamed Abd Elaziz
Summary: Feature selection methods are essential for developing intelligent analysis tools that require data preprocessing and improving the performance of machine learning algorithms. This paper introduces a new feature selection method based on the modified Slime mould algorithm using the firefly algorithm. Experimental results confirm the promising performance of the method across different performance measures.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Laith Abualigah, Dalia Yousri, Mohamed Abd Elaziz, Ahmed A. Ewees, Mohammed A. A. Al-qaness, Amir H. Gandomi
Summary: This paper introduces a novel population-based optimization method, AO, inspired by the behaviors of eagles during hunting. Through a series of experiments, the superior performance of AO in finding optimal solutions for various problems is demonstrated and compared with other meta-heuristic methods.
COMPUTERS & INDUSTRIAL ENGINEERING
(2021)
Article
Thermodynamics
Dalia Yousri, Ahmed Fathy, Hegazy Rezk, Thanikanti Sudhakar Babu, Mohamed R. Berber
Summary: This article investigates the use of the triple diode model (TDM) for modeling various PV modules and introduces a novel hybrid algorithm called HMPA. Results demonstrate that HMPA outperforms other algorithms in identifying TDM parameters, as confirmed by statistical analysis and convergence curves.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Dalia Yousri, Ahmed Fathy, Thanikanti Sudhakar Babu, Mohamed R. Berber
Summary: The study introduced a new method utilizing the parasitism-predation algorithm to estimate the optimal parameters of the SOFC equivalent circuit, demonstrating higher reliability and accuracy compared to other optimizers in the experiments.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Mohamed E. Zayed, Jun Zhao, Wenjia Li, Ammar H. Elsheikh, Mohamed Abd Elaziz, Dalia Yousri, Shengyuan Zhong, Zhu Mingxi
Summary: This study developed a novel hybrid prediction model using an improved version of the RVFL network and the CHOA algorithm for optimizing the prediction of instantaneous output power and monthly power production of SDSPP. Comparative statistical results indicated the superiority and effectiveness of the proposed RVFL-CHOA method in performance prediction.
Article
Computer Science, Artificial Intelligence
Jin Zhang, Zekang Bian, Shitong Wang
Summary: This study proposes a novel style linear k-nearest neighbor method to extract stylistic features using matrix expressions and improve the generalizability of the predictor through style membership vectors.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Qifeng Wan, Xuanhua Xu, Jing Han
Summary: In this study, we propose an innovative approach for dimensionality reduction in large-scale group decision-making scenarios that targets linguistic preferences. The method combines TF-IDF feature similarity and information loss entropy to address challenges in decision-making with a large number of decision makers.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Hegui Zhu, Yuchen Ren, Chong Liu, Xiaoyan Sui, Libo Zhang
Summary: This paper proposes an adversarial attack method based on frequency information, which optimizes the imperceptibility and transferability of adversarial examples in white-box and black-box scenarios respectively. Experimental results validate the superiority of the proposed method and its application in real-world online model evaluation reveals their vulnerability.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Jing Tang, Xinwang Liu, Weizhong Wang
Summary: This paper proposes a hybrid generalized TODIM approach in the Fine-Kinney framework to evaluate occupational health and safety hazards. The approach integrates CRP, dynamic SIN, and PLTSs to handle opinion interactions and incomplete opinions among decision makers. The efficiency and rationality of the proposed approach are demonstrated through a numerical example, comparison, and sensitivity studies.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Shigen Shen, Chenpeng Cai, Zhenwei Li, Yizhou Shen, Guowen Wu, Shui Yu
Summary: To address the damage caused by zero-day attacks on SIoT systems, researchers propose a heuristic learning intrusion detection system named DQN-HIDS. By integrating Deep Q-Networks (DQN) into the system, DQN-HIDS gradually improves its ability to identify malicious traffic and reduces resource workloads. Experiments demonstrate the superior performance of DQN-HIDS in terms of workload, delayed sample queue, rewards, and classifier accuracy.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Song Deng, Qianliang Li, Renjie Dai, Siming Wei, Di Wu, Yi He, Xindong Wu
Summary: In this paper, we propose a Chinese text classification algorithm based on deep active learning for the power system, which addresses the challenge of specialized text classification. By applying a hierarchical confidence strategy, our model achieves higher classification accuracy with fewer labeled training data.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Kaan Deveci, Onder Guler
Summary: This study proves the lack of robustness in nonlinear IF distance functions for ranking intuitionistic fuzzy sets (IFS) and proposes an alternative ranking method based on hypervolume metric. Additionally, the suggested method is extended as a new multi-criteria decision making method called HEART, which is applied to evaluate Turkey's energy alternatives.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Fu-Wing Yu, Wai-Tung Ho, Chak-Fung Jeff Wong
Summary: This research aims to enhance the energy management in commercial building air-conditioning systems, specifically focusing on chillers. Ridge regression is found to outperform lasso and elastic net regression when optimized with the appropriate hyperparameter, making it the most suitable method for modeling the system coefficient of performance (SCOP). The key variables that strongly influence SCOP include part load ratios, the operating numbers of chillers and pumps, and the temperatures of chilled water and condenser water. Additionally, July is identified as the month with the highest potential for performance improvement. This study introduces a novel approach that balances feature selection, model accuracy, and optimal tuning of hyperparameters, highlighting the significance of a generic and simplified chiller system model in evaluating energy management opportunities for sustainable operation. The findings from this research can guide future efforts towards more energy-efficient and sustainable operations in commercial buildings.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Xiaoyan Chen, Yilin Sun, Qiuju Zhang, Xuesong Dai, Shen Tian, Yongxin Guo
Summary: In this study, a method for dynamically non-destructive grasping of thin-skinned fruits is proposed. It utilizes a multi-modal depth fusion convolutional neural network for image processing and segmentation, and combines the evaluation mechanism of optimal grasping stability and the forward-looking non-destructive grasp control algorithm. The proposed method greatly improves the comprehensive performance of grasping delicate fruits using flexible hands.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Yuxuan Yang, Siyuan Zhou, He Weng, Dongjing Wang, Xin Zhang, Dongjin Yu, Shuiguang Deng
Summary: The study proposes a novel model, POIGDE, which addresses the challenges of data sparsity and elusive motives by solving graph differential equations to capture continuous variation of users' interests. The model learns interest transference dynamics using a time-serial graph and an interval-aware attention mechanism, and applies Siamese learning to directly learn from label representations for predicting future POI visits. The model outperforms state-of-the-art models on real-world datasets, showing potential in the POI recommendation domain.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
S. Karthika, P. Rathika
Summary: The widespread development of monitoring devices in the power system has generated a large amount of power consumption data. Storing and transmitting this data has become a significant challenge. This paper proposes an adaptive data compression algorithm based on the discrete wavelet transform (DWT) for power system applications. It utilizes multi-objective particle swarm optimization (MO-PSO) to select the optimal threshold. The algorithm has been tested and outperforms other existing algorithms.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Jiaqi Guo, Haiyan Wu, Xiaolei Chen, Weiguo Lin
Summary: In this study, an adaptive SV-Borderline SMOTE-SVM algorithm is proposed to address the challenge of imbalanced data classification. The algorithm maps the data into kernel space using SVM and identifies support vectors, then generates new samples based on the neighbors of these support vectors. Extensive experiments show that this method is more effective than other approaches in imbalanced data classification.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Qiumei Zheng, Linkang Xu, Fenghua Wang, Yongqi Xu, Chao Lin, Guoqiang Zhang
Summary: This paper proposes a new semantic segmentation network model called HilbertSCNet, which combines the Hilbert curve traversal and the dual pathway idea to design a new spatial computation module to address the problem of loss of information for small targets in high-resolution images. The experiments show that the proposed network performs well in the segmentation of small targets in high-resolution maps such as drone aerial photography.
APPLIED SOFT COMPUTING
(2024)
Article
Computer Science, Artificial Intelligence
Mojtaba Ashour, Amir Mahdiyar
Summary: Analytic Hierarchy Process (AHP) is a widely applied technique in multi-criteria decision-making problems, but the sheer number of AHP methods presents challenges for scholars and practitioners in selecting the most suitable method. This paper reviews articles published between 2010 and 2023 proposing hybrid, improved, or modified AHP methods, classifies them based on their contributions, and provides a comprehensive summary table and roadmap to guide the method selection process.
APPLIED SOFT COMPUTING
(2024)
Review
Computer Science, Artificial Intelligence
Gerardo Humberto Valencia-Rivera, Maria Torcoroma Benavides-Robles, Alonso Vela Morales, Ivan Amaya, Jorge M. Cruz-Duarte, Jose Carlos Ortiz-Bayliss, Juan Gabriel Avina-Cervantes
Summary: Electric power system applications are complex optimization problems. Most literature reviews focus on studying electrical paradigms using different optimization techniques, but there is a lack of review on Metaheuristics (MHs) in these applications. Our work provides an overview of the paradigms underlying such applications and analyzes the most commonly used MHs and their search operators. We also discover a strong synergy between the Renewable Energies paradigm and other paradigms, and a significant interest in Load-Forecasting optimization problems. Based on our findings, we provide helpful recommendations for current challenges and potential research paths to support further development in this field.
APPLIED SOFT COMPUTING
(2024)