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Most Cited

  • Article
  • Open Access
74 Citations
3,393 Views
26 Pages

Application of Whale Optimization Algorithm Based FOPI Controllers for STATCOM and UPQC to Mitigate Harmonics and Voltage Instability in Modern Distribution Power Grids

  • Mohamed Metwally Mahmoud,
  • Basiony Shehata Atia,
  • Yahia M. Esmail,
  • Sid Ahmed El Mehdi Ardjoun,
  • Noha Anwer,
  • Ahmed I. Omar,
  • Faisal Alsaif,
  • Sager Alsulamy and
  • Shazly A. Mohamed

26 April 2023

In recent modern power systems, the number of renewable energy systems (RESs) and nonlinear loads have become more prevalent. When these systems are connected to the electricity grid, they may face new difficulties and issues such as harmonics and no...

  • Article
  • Open Access
69 Citations
6,443 Views
31 Pages

Metaheuristic-Based Hyperparameter Tuning for Recurrent Deep Learning: Application to the Prediction of Solar Energy Generation

  • Catalin Stoean,
  • Miodrag Zivkovic,
  • Aleksandra Bozovic,
  • Nebojsa Bacanin,
  • Roma Strulak-Wójcikiewicz,
  • Milos Antonijevic and
  • Ruxandra Stoean

4 March 2023

As solar energy generation has become more and more important for the economies of numerous countries in the last couple of decades, it is highly important to build accurate models for forecasting the amount of green energy that will be produced. Num...

  • Article
  • Open Access
65 Citations
2,875 Views
23 Pages

Color Image Recovery Using Generalized Matrix Completion over Higher-Order Finite Dimensional Algebra

  • Liang Liao,
  • Zhuang Guo,
  • Qi Gao,
  • Yan Wang,
  • Fajun Yu,
  • Qifeng Zhao,
  • Stephen John Maybank,
  • Zhoufeng Liu,
  • Chunlei Li and
  • Lun Li

10 October 2023

To improve the accuracy of color image completion with missing entries, we present a recovery method based on generalized higher-order scalars. We extend the traditional second-order matrix model to a more comprehensive higher-order matrix equivalent...

  • Article
  • Open Access
64 Citations
2,330 Views
21 Pages

Stability of Anisotropy Pressure in Self-Gravitational Systems in f(G) Gravity

  • Z. Yousaf,
  • M. Z. Bhatti,
  • S. Khan,
  • A. Malik,
  • Haifa I. Alrebdi and
  • Abdel-Haleem Abdel-Aty

2 March 2023

This investigation aims to explore certain variables which are considered responsible for generating pressure anisotropy in dynamical spherically symmetric stellar systems against the background of the stringy-inspired Gauss–Bonnet modification...

  • Article
  • Open Access
49 Citations
5,170 Views
20 Pages

Two Novel Models for Traffic Sign Detection Based on YOLOv5s

  • Wei Bai,
  • Jingyi Zhao,
  • Chenxu Dai,
  • Haiyang Zhang,
  • Li Zhao,
  • Zhanlin Ji and
  • Ivan Ganchev

3 February 2023

Object detection and image recognition are some of the most significant and challenging branches in the field of computer vision. The prosperous development of unmanned driving technology has made the detection and recognition of traffic signs crucia...

  • Article
  • Open Access
45 Citations
16,638 Views
22 Pages

29 August 2023

Stock price prediction has been a subject of significant interest in the financial mathematics field. Recently, interest in natural language processing models has increased, and among them, transformer models, such as BERT and FinBERT, are attracting...

  • Article
  • Open Access
41 Citations
2,980 Views
19 Pages

The FitzHugh–Nagumo Model Described by Fractional Difference Equations: Stability and Numerical Simulation

  • Tareq Hamadneh,
  • Amel Hioual,
  • Omar Alsayyed,
  • Yazan Alaya Al-Khassawneh,
  • Abdallah Al-Husban and
  • Adel Ouannas

22 August 2023

The aim of this work is to describe the dynamics of a discrete fractional-order reaction–diffusion FitzHugh–Nagumo model. We established acceptable requirements for the local asymptotic stability of the system’s unique equilibrium....

  • Article
  • Open Access
41 Citations
2,747 Views
15 Pages

Existence and Uniqueness Theorems for a Variable-Order Fractional Differential Equation with Delay

  • Benoumran Telli,
  • Mohammed Said Souid,
  • Jehad Alzabut and
  • Hasib Khan

30 March 2023

This study establishes the existence and stability of solutions for a general class of Riemann–Liouville (RL) fractional differential equations (FDEs) with a variable order and finite delay. Our findings are confirmed by the fixed-point theorem...

  • Article
  • Open Access
39 Citations
3,053 Views
26 Pages

Bayesian Inference and Data Analysis of the Unit–Power Burr X Distribution

  • Aisha Fayomi,
  • Amal S. Hassan,
  • Hanan Baaqeel and
  • Ehab M. Almetwally

14 March 2023

The unit–power Burr X distribution (UPBXD), a bounded version of the power Burr X distribution, is presented. The UPBXD is produced through the inverse exponential transformation of the power Burr X distribution, which is also beneficial for mo...

  • Article
  • Open Access
38 Citations
3,178 Views
13 Pages

A Generalization of Gegenbauer Polynomials and Bi-Univalent Functions

  • Ala Amourah,
  • Abdullah Alsoboh,
  • Osama Ogilat,
  • Gharib Mousa Gharib,
  • Rania Saadeh and
  • Maha Al Soudi

28 January 2023

Three subclasses of analytic and bi-univalent functions are introduced through the use of q−Gegenbauer polynomials, which are a generalization of Gegenbauer polynomials. For functions falling within these subclasses, coefficient bounds a2 and a...

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Axioms - ISSN 2075-1680