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3,198 Results Found

  • Article
  • Open Access
15 Citations
7,556 Views
24 Pages

2 March 2022

Nature-inspired metaheuristic algorithms remain a strong trend in optimization. Human-inspired optimization algorithms should be more intuitive and relatable. This paper proposes a novel optimization algorithm inspired by a human search party. We hyp...

(This article belongs to the Special Issue Biologically Inspired Computing)
  • Article
  • Open Access
28 Citations
6,715 Views
16 Pages

An Improved BGE-Adam Optimization Algorithm Based on Entropy Weighting and Adaptive Gradient Strategy

  • Yichuan Shao,
  • Jiantao Wang,
  • Haijing Sun,
  • Hao Yu and ,
  • Lei Xing,
  • Qian Zhao and
  • Le Zhang
  • + 2 authors+ 0 author

17 May 2024

This paper introduces an enhanced variant of the Adam optimizer—the BGE-Adam optimization algorithm—that integrates three innovative technologies to augment the adaptability, convergence, and robustness of the original algorithm under var...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
12 Citations
3,935 Views
13 Pages

1 March 2018

The increasing penetration of distributed energy resources in distribution systems has brought a number of network management and operational challenges; reactive power variation has been identified as one of the dominant effects. Enormous growth in...

(This article belongs to the Section F: Electrical Engineering)
  • Article
  • Open Access
32 Citations
4,019 Views
18 Pages

8 November 2021

As the global temperature continues to rise, people have become increasingly concerned about global climate change. In order to help China to effectively develop a carbon peak target completion plan, this paper proposes a carbon emission prediction m...

  • Article
  • Open Access
5 Citations
1,332 Views
29 Pages

Low Carbon Economic Dispatch of Power System Based on Multi-Region Distributed Multi-Gradient Whale Optimization Algorithm

  • Linfei Yin,
  • Yongzi Ye,
  • Xiaoping Xiong,
  • Jiajia Chai and ,
  • Hanzhong Cui and
  • Haoyuan Li
  • + 1 author+ 0 author

5 August 2025

The rapid development of the modern power system puts forward high requirements for economic dispatch, and the defects of the traditional centralized economic dispatch method with low security and poor optimization effect have been difficult to adapt...

  • Article
  • Open Access
5 Citations
3,068 Views
21 Pages

A Computationally Efficient Gradient Algorithm for Downlink Training Sequence Optimization in FDD Massive MIMO Systems

  • Muntadher Alsabah,
  • Marwah Abdulrazzaq Naser,
  • Basheera M. Mahmmod and
  • Sadiq H. Abdulhussain

5 June 2022

Future wireless networks will require advance physical-layer techniques to meet the requirements of Internet of Everything (IoE) applications and massive communication systems. To this end, a massive MIMO (m-MIMO) system is to date considered one of...

  • Article
  • Open Access
54 Citations
4,987 Views
31 Pages

25 January 2022

Optimal power flow (OPF) is one of the most significant electric power network control and management issues. Adding unreliable and intermittent renewable energy sources to the electrical grid increase and complicates the OPF issue, which calls for u...

  • Article
  • Open Access
4 Citations
1,847 Views
35 Pages

5 August 2025

Earthquakes, as one of the most destructive natural disasters, often cause significant casualties and severe economic losses. Accurate prediction of earthquake fatalities is of great importance for pre-disaster prevention and mitigation planning, as...

(This article belongs to the Section Earth Sciences)
  • Article
  • Open Access
10 Citations
2,355 Views
18 Pages

28 January 2024

Lithology identification is the fundamental work of oil and gas reservoir exploration and reservoir evaluation. The lithology of volcanic reservoirs is complex and changeable, the longitudinal lithology changes a great deal, and the log response char...

(This article belongs to the Special Issue Rock Physics, Well Logging, and Formation Evaluation in Energy Exploration Systems)
  • Article
  • Open Access
8 Citations
4,117 Views
21 Pages

Optimization of Gradient Descent Parameters in Attitude Estimation Algorithms

  • Karla Sever,
  • Leonardo Max Golušin and
  • Josip Lončar

18 February 2023

Attitude estimation methods provide modern consumer, industrial, and space systems with an estimate of a body orientation based on noisy sensor measurements. The gradient descent algorithm is one of the most recent methods for optimal attitude estima...

(This article belongs to the Special Issue Attitude Estimation Based on Data Processing of Sensors)
  • Article
  • Open Access
8 Citations
3,323 Views
16 Pages

12 May 2020

The artificial bee colony (ABC) algorithm, which has been widely studied for years, is a stochastic algorithm for solving global optimization problems. Taking advantage of the information of a global best solution, the Gbest-guided artificial bee col...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
10 Citations
3,551 Views
31 Pages

21 March 2024

This paper addresses the critical role of supercapacitors as energy storage systems with a specific focus on their modeling and identification. The lack of a standardized and efficient method for identifying supercapacitor parameters has a definite e...

(This article belongs to the Special Issue Recent Advances in Power Quality Analysis and Robust Control of Renewable Energy Sources in Power Grids)
  • Article
  • Open Access
4 Citations
2,300 Views
20 Pages

2 November 2022

The total heat exchange factor is one of the most important thermal physical parameters in the heat transfer model for a reheating furnace machine. In this paper, a novel general strategy, which is combined with the first-optimize-then-discretize (FO...

(This article belongs to the Special Issue Partial Differential Equations and Applications)
  • Article
  • Open Access
2 Citations
2,425 Views
31 Pages

Stochastic Zeroth-Order Multi-Gradient Algorithm for Multi-Objective Optimization

  • Zhihao Li,
  • Qingtao Wu,
  • Moli Zhang,
  • Lin Wang and ,
  • Youming Ge and
  • Guoyong Wang
  • + 1 author+ 0 author

14 February 2025

Multi-objective optimization (MOO) has become an important method in machine learning, which involves solving multiple competing objective problems simultaneously. Nowadays, many MOO algorithms assume that gradient information is easily available and...

  • Article
  • Open Access
45 Citations
8,342 Views
26 Pages

An Improved Gradient-Based Optimization Algorithm for Solving Complex Optimization Problems

  • Saleh Masoud Abdallah Altbawi,
  • Saifulnizam Bin Abdul Khalid,
  • Ahmad Safawi Bin Mokhtar,
  • Hussain Shareef and ,
  • Nusrat Husain,
  • Ashraf Yahya,
  • Syed Aqeel Haider,
  • Lubna Moin and
  • Rayan Hamza Alsisi
  • + 4 authors+ 0 author

7 February 2023

In this paper, an improved gradient-based optimizer (IGBO) is proposed with the target of improving the performance and accuracy of the algorithm for solving complex optimization and engineering problems. The proposed IGBO has the added features of a...

(This article belongs to the Special Issue Evolutionary Process for Engineering Optimization (II))
  • Article
  • Open Access
4 Citations
3,633 Views
14 Pages

24 March 2022

In this paper, we transform the problem of solving the Sylvester matrix equation into an optimization problem through the Kronecker product primarily. We utilize the adaptive accelerated proximal gradient and Newton accelerated proximal gradient meth...

(This article belongs to the Special Issue Numerical Methods for Solving Nonlinear Equations)
  • Article
  • Open Access
12 Citations
5,165 Views
25 Pages

A q-Gradient Descent Algorithm with Quasi-Fejér Convergence for Unconstrained Optimization Problems

  • Shashi Kant Mishra,
  • Predrag Rajković,
  • Mohammad Esmael Samei,
  • Suvra Kanti Chakraborty and ,
  • Bhagwat Ram and
  • Mohammed K. A. Kaabar
  • + 1 author+ 0 author

We present an algorithm for solving unconstrained optimization problems based on the q-gradient vector. The main idea used in the algorithm construction is the approximation of the classical gradient by a q-gradient vector. For a convex objective fun...

(This article belongs to the Special Issue The Materials Structure and Fractal Nature)
  • Article
  • Open Access
5 Citations
3,515 Views
22 Pages

23 August 2021

This paper describes an improved method of calculating reactivity ratios by applying the neuronal networks optimization algorithm, named gradient descent. The presented method is integral and has been compared to the following existing methods: Finem...

(This article belongs to the Special Issue Collection of Papers in Material Science from Romania)
  • Technical Note
  • Open Access
9 Citations
2,674 Views
16 Pages

2 April 2022

The tone reservation (TR) approach is mainly adopted to reduce the peak-to-mean envelope power ratio (PMEPR) of orthogonal frequency division multiplexing (OFDM) waveform with low TR ratio (TRR) in classic 4G communication systems. However, for the O...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,052 Views
18 Pages

3 October 2020

The present study develops a novel optimization method for designing a Stirling engine by combining a variable-step simplified conjugate gradient method (VSCGM) and a neural network training algorithm. As compared with existing gradient-based methods...

(This article belongs to the Section I: Energy Fundamentals and Conversion)
  • Article
  • Open Access
1,622 Views
29 Pages

27 August 2025

The widespread application of unmanned vehicles in logistics distribution and special transportation has made improving trajectory tracking accuracy and dynamic adaptability critical for operational efficiency. This article proposes a biologically in...

(This article belongs to the Section A: Computer Science)
  • Article
  • Open Access
4 Citations
4,159 Views
40 Pages

14 February 2025

Non-convex optimization problems often challenge gradient-based algorithms, such as Gradient Descent. Neural network training, a prominent application of gradient-based methods, heavily relies on their computational efficiency. However, the cost func...

(This article belongs to the Special Issue Novel Research and Applications on Optimization Algorithms)
  • Article
  • Open Access
29 Citations
3,172 Views
23 Pages

Optimal Control of a Single-Stage Modular PV-Grid-Driven System Using a Gradient Optimization Algorithm

  • Saleh Masoud Abdallah Altbawi,
  • Ahmad Safawi Bin Mokhtar,
  • Saifulnizam Bin Abdul Khalid,
  • Nusrat Husain and ,
  • Ashraf Yahya,
  • Syed Aqeel Haider,
  • Rayan Hamza Alsisi and
  • Lubna Moin
  • + 3 authors+ 0 author

2 February 2023

There are many studies that focus on extracting harmonics from both DC and AC sides of grid-interfaced photovoltaic (PV) systems. Based on these studies, the paper introduces an efficient method depending on hybrid DC voltage, and an active and react...

(This article belongs to the Section F1: Electrical Power System)
  • Article
  • Open Access
16 Citations
5,207 Views
21 Pages

30 September 2025

Wavefront aberrations caused by thermal flows or arising from the quality of optical components can significantly impair wireless communication links. Such aberrations may result in an increased error rate in the received signal, leading to data loss...

(This article belongs to the Section Information Systems)
  • Article
  • Open Access
9 Citations
2,860 Views
15 Pages

An Improved Reacceleration Optimization Algorithm Based on the Momentum Method for Image Recognition

  • Haijing Sun,
  • Ying Cai,
  • Ran Tao,
  • Yichuan Shao and ,
  • Lei Xing,
  • Can Zhang and
  • Qian Zhao
  • + 2 authors+ 0 author

5 June 2024

The optimization algorithm plays a crucial role in image recognition by neural networks. However, it is challenging to accelerate the model’s convergence and maintain high precision. As a commonly used stochastic gradient descent optimization a...

(This article belongs to the Section E2: Control Theory and Mechanics)
  • Article
  • Open Access
28 Citations
5,982 Views
25 Pages

Guided Hybrid Modified Simulated Annealing Algorithm for Solving Constrained Global Optimization Problems

  • Khalid Abdulaziz Alnowibet,
  • Salem Mahdi,
  • Mahmoud El-Alem,
  • Mohamed Abdelawwad and
  • Ali Wagdy Mohamed

14 April 2022

In this paper, a hybrid gradient simulated annealing algorithm is guided to solve the constrained optimization problem. In trying to solve constrained optimization problems using deterministic, stochastic optimization methods or hybridization between...

(This article belongs to the Special Issue Variational Problems and Applications)
  • Article
  • Open Access
2 Citations
2,324 Views
25 Pages

19 April 2024

Multi-objective evolutionary algorithms (MOEA) have attracted much attention because of their good global exploration ability; however, their local search ability near the optimal value is weak, and for large-scale decision-variable optimization prob...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
16 Citations
5,908 Views
17 Pages

3 April 2020

Inspired by biological systems, swarm intelligence algorithms are widely used to solve multimodal optimization problems. In this study, we consider the hybridization problem of an algorithm based on the collective behavior of fish schools. The algori...

(This article belongs to the Special Issue Mathematical Models and Their Applications)
  • Article
  • Open Access
7 Citations
3,154 Views
37 Pages

A Family of Hybrid Stochastic Conjugate Gradient Algorithms for Local and Global Minimization Problems

  • Khalid Abdulaziz Alnowibet,
  • Salem Mahdi,
  • Ahmad M. Alshamrani,
  • Karam M. Sallam and
  • Ali Wagdy Mohamed

1 October 2022

This paper contains two main parts, Part I and Part II, which discuss the local and global minimization problems, respectively. In Part I, a fresh conjugate gradient (CG) technique is suggested and then combined with a line-search technique to obtain...

(This article belongs to the Special Issue Development and Optimization of Mathematical Models for Operations Research)
  • Article
  • Open Access
16 Citations
13,690 Views
20 Pages

MAMGD: Gradient-Based Optimization Method Using Exponential Decay

  • Nikita Sakovich,
  • Dmitry Aksenov,
  • Ekaterina Pleshakova and
  • Sergey Gataullin

Optimization methods, namely, gradient optimization methods, are a key part of neural network training. In this paper, we propose a new gradient optimization method using exponential decay and the adaptive learning rate using a discrete second-order...

  • Article
  • Open Access
14 Citations
5,979 Views
21 Pages

Fast-charging technology for lithium-ion batteries is of great significance in reducing charging time and enhancing user experience. However, during fast charging, the imbalance among battery cells can affect the overall performance and available cap...

(This article belongs to the Section Battery Modelling, Simulation, Management and Application)
  • Article
  • Open Access
30 Citations
3,708 Views
16 Pages

16 March 2022

Semi-airborne transient electromagnetics (SATEM) is a geophysical survey tool known for its ability to perform three-dimensional (3D) observations and collect high-density data in large volumes. However, SATEM data processing is presently restricted...

  • Article
  • Open Access
1 Citations
3,924 Views
20 Pages

Spatial optimization is an integral part of GIS and spatial analysis. It involves making various decisions in space, ranging from the location of public facilities to vehicle routing and political districting. While useful, such problems (especially...

  • Article
  • Open Access
604 Views
22 Pages

2 March 2026

Gas turbines play a critical role in modern power systems, yet their transient operations (e.g., start-up, load mutation) induce significant thermal inertia in metal components, leading to deviations between simulation results and actual performance....

(This article belongs to the Section AI-Enabled Process Engineering)
  • Article
  • Open Access
375 Views
20 Pages

7 June 2026

For the identification problem of Hammerstein models, this paper proposes a decoupled identification algorithm that combines the correlation analysis with the optimal gradient-based iterative algorithm. The proposed method firstly decouples the linea...

(This article belongs to the Special Issue Applied Mathematical Modeling, System Identification, and Advanced Control for Complex Engineering Systems)
  • Article
  • Open Access
14 Citations
3,651 Views
31 Pages

7 September 2023

Aerodynamic shape optimization is frequently complicated and challenging due to the involvement of multiple objectives, large-scale decision variables, and expensive cost function evaluation. This paper presents a bilayer parallel hybrid algorithm fr...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
4 Citations
2,187 Views
18 Pages

2 January 2025

To achieve the optimal solution between construction costs and carbon emissions in the multi-target optimization scheduling, this paper proposes a multi-objective optimization scheduling design for wind–solar energy storage microgrids based on...

(This article belongs to the Special Issue Algorithms for Electrical and Electronic Engineering with Renewable Energy Sources)
  • Article
  • Open Access
10 Citations
3,514 Views
13 Pages

A New Hybrid Optimization Method, Application to a Single Objective Active Flow Control Test Case

  • Martí Coma,
  • Navid Monshi Tousi,
  • Jordi Pons-Prats,
  • Gabriel Bugeda and
  • Josep M. Bergada

12 April 2022

Genetic Algorithms (GA) are useful optimization methods for exploration of the search space, but they usually have slowness problems to exploit and converge to the minimum. On the other hand, gradient based methods converge faster to local minimums,...

(This article belongs to the Special Issue Flow Control, Active and Passive Applications)
  • Article
  • Open Access
2 Citations
2,562 Views
22 Pages

A Novel Spherical Shortest Path Planning Method for UAVs

  • Fan Liu,
  • Pengchuan Wang,
  • Aniruddha Bhattacharjya and
  • Qianmu Li

12 December 2024

As a central subdivision of the low-altitude economy industry, industrial and consumer drones have broad market application prospects and are becoming the primary focus of the low-altitude economy; however, with increasing aircraft density, effective...

(This article belongs to the Special Issue Emerging Technologies and Innovations in Unmanned Aerial Vehicle Control Systems)
  • Article
  • Open Access
2 Citations
2,030 Views
15 Pages

5 February 2025

The optimal allocation of buffers is an important research issue in the area of manufacturing system design and optimization, as buffers can have a large impact on system performance. In this study, we consider one of the most common buffer allocatio...

(This article belongs to the Section Applied Industrial Technologies)
  • Article
  • Open Access
3 Citations
1,866 Views
28 Pages

20 November 2023

By applying the weighted relaxation technique to the gradient-based iterative (GI) algorithm and taking proper weighted combinations of the solutions, this paper proposes the weighted, relaxed gradient-based iterative (WRGI) algorithm to solve the ge...

(This article belongs to the Section Mathematical Analysis)
  • Article
  • Open Access
40 Citations
26,191 Views
16 Pages

Compressive Strength Prediction of Cemented Backfill Containing Phosphate Tailings Using Extreme Gradient Boosting Optimized by Whale Optimization Algorithm

  • Shuai Xiong,
  • Zhixiang Liu,
  • Chendi Min,
  • Ying Shi and ,
  • Shuangxia Zhang and
  • Weijun Liu
  • + 1 author+ 0 author

28 December 2022

Unconfined compressive strength (UCS) is the most significant mechanical index for cemented backfill, and it is mainly determined by traditional mechanical tests. This study optimized the extreme gradient boosting (XGBoost) model by utilizing the wha...

  • Article
  • Open Access
12 Citations
4,708 Views
25 Pages

2 November 2020

The goal of this article is to train deep neural networks that accelerate useful adaptive learning rate optimization algorithms such as AdaGrad, RMSProp, Adam, and AMSGrad. To reach this goal, we devise an iterative algorithm combining the existing a...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
2,197 Views
18 Pages

RPCGB Method for Large-Scale Global Optimization Problems

  • Abderrahmane Ettahiri and
  • Abdelkrim El Mouatasim

18 June 2023

In this paper, we propose a new approach for optimizing a large-scale non-convex differentiable function subject to linear equality constraints. The proposed method, RPCGB (random perturbation of the conditional gradient method with bisection algorit...

(This article belongs to the Special Issue Advances in Combinatorial Optimization and Discrete Mathematics with Applications)
  • Article
  • Open Access
2 Citations
3,216 Views
28 Pages

16 October 2022

The main purpose of the work was examining various methods of decomposition of a network optimization problem of simultaneous routing and bandwidth allocation based on Lagrangian relaxation. The problem studied is an NP-hard mixed-integer nonlinear o...

(This article belongs to the Special Issue Mixed-Integer Linear and Nonlinear Programming Methods for Energy Aware Traffic Control in Stationary Networks and Clouds)
  • Article
  • Open Access
20 Citations
5,041 Views
17 Pages

Optimization and Validation of Sound Absorption Performance of 10-Layer Gradient Compressed Porous Metal

  • Fei Yang,
  • Xinmin Shen,
  • Panfeng Bai,
  • Xiaonan Zhang and ,
  • Zhizhong Li and
  • Qin Yin
  • + 1 author+ 0 author

21 May 2019

Sound absorption performance of a porous metal can be improved by compression and optimal permutation, which is favorable to promote its application in noise reduction. The 10-layer gradient compressed porous metal was proposed to obtain optimal soun...

(This article belongs to the Special Issue Cellular Metals: Fabrication, Properties and Applications)
  • Article
  • Open Access
5 Citations
2,182 Views
16 Pages

20 November 2023

Optimization algorithms have now played an important role in many fields, and the issue of how to design high-efficiency algorithms has gained increasing attention, for which it has been shown that advanced control theories could be helpful. In this...

  • Article
  • Open Access
2 Citations
1,516 Views
33 Pages

5 July 2025

Accurate prediction of key environmental parameters is crucial for intelligent control and optimization, yet it remains challenging due to gradient instability in deep learning models, like Long Short-Term Memory (LSTM), during time series forecastin...

(This article belongs to the Special Issue Machine Learning for Predictive Modeling and Optimization of Manufacturing Processes)
  • Article
  • Open Access
4 Citations
3,386 Views
21 Pages

Solar-Thermal-Chemical Integrated Design of a Cavity-Type Solar-Driven Methane Dry Reforming Reactor

  • Zhou-Qiao Dai,
  • Xu Ma,
  • Xin-Yuan Tang,
  • Ren-Zhong Zhang and
  • Wei-Wei Yang

16 March 2023

In this work, the solar-thermal-chemical integrated design for a methane dry reforming reactor with cavity-type solar absorption was numerically performed. Combined with a multiphysical reactor model, the gradient optimization algorithm was used to f...

(This article belongs to the Special Issue Advances in Solar Thermal Energy Harvesting, Storage and Conversion)
  • Article
  • Open Access
7 Citations
2,930 Views
29 Pages

Metaheuristic Optimization Algorithm Based Cascaded Control Schemes for Nonlinear Ball and Balancer System

  • Farhan Zafar,
  • Suheel Abdullah Malik,
  • Tayyab Ali,
  • Amil Daraz and ,
  • Atif M. Alamri,
  • Salman A. AlQahtani and
  • Farkhunda Bhatti
  • + 2 authors+ 0 author

29 January 2024

The ball and balancer system is a popular research platform for studying underactuated mechanical systems and developing control algorithms. It is a well-known two-dimensional balancing problem that has been addressed by a variety of controllers. Thi...

(This article belongs to the Special Issue Design and Control of Complex and Intelligent Systems)

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