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3,853 Results Found

  • Article
  • Open Access
6 Citations
1,896 Views
8 Pages

6 September 2019

In this paper, optimality conditions are studied for a new class of PDE and PDI-constrained scalar variational control problems governed by path-independent curvilinear integral functionals. More precisely, we formulate and prove a minimal criterion...

  • Article
  • Open Access
2,810 Views
20 Pages

31 May 2019

Target localization is one of the essential tasks in almost applications of wireless sensor networks. Some traditional compressed sensing (CS)-based target localization methods may achieve low-precision target localization because of using locally op...

  • Article
  • Open Access
14 Citations
3,172 Views
10 Pages

29 April 2021

Optimizing the sum of linear fractional functions over a set of linear inequalities (S-LFP) has been considered by many researchers due to the fact that there are a number of real-world problems which are modelled mathematically as S-LFP problems. So...

  • Article
  • Open Access
4 Citations
2,922 Views
22 Pages

A Solution of Implicit Model of Series-Parallel Photovoltaic Arrays by Using Deterministic and Metaheuristic Global Optimization Algorithms

  • Luis Miguel Pérez Archila,
  • Juan David Bastidas-Rodríguez,
  • Rodrigo Correa,
  • Luz Adriana Trejos Grisales and
  • Daniel Gonzalez-Montoya

12 February 2020

The implicit model of photovoltaic (PV) arrays in series-parallel (SP) configuration does not require the LambertW function, since it uses the single-diode model, to represent each submodule, and the implicit current-voltage relationship to construct...

  • Article
  • Open Access
3 Citations
2,958 Views
19 Pages

28 July 2022

Linear complementarity problem (LCP) is studied. After reforming general LCP as the system of nonlinear equations by NCP-function, LCP is equivalent to solving an unconstrained optimization model, which can be solved by a recently proposed algorithm...

  • Article
  • Open Access
1 Citations
1,128 Views
18 Pages

3 June 2025

The conventional power distributions methods face many challenges, such as high switching frequency, multiple carrier cycles, and single power distribution. To address the above issues, a novel power distribution based on the selective harmonic elimi...

  • Article
  • Open Access
7 Citations
2,904 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...

  • Article
  • Open Access
567 Views
25 Pages

23 June 2025

The clever eye (CE) algorithm has been introduced for target detection in remote sensing image processing. It originally proposes the concept of data origin and can achieve the lowest average output energy compared to both the classical constrained e...

  • Article
  • Open Access
28 Citations
7,883 Views
24 Pages

This paper presents a novel inverse kinematics global method for a redundant robot manipulator performing a tracking maneuver. The proposed method, based on the choice of appropriate initial joint trajectories that satisfy the kinematic constraints t...

  • Article
  • Open Access
8 Citations
2,877 Views
14 Pages

1 June 2019

This paper proposes an improved feedback algorithm by binary particle swarm optimization (BPSO)-based nonsingular terminal sliding mode control (NTSMC) for DC–AC converters. The NTSMC can create limited system state convergence time and allow s...

  • Article
  • Open Access
5 Citations
3,101 Views
21 Pages

6 December 2022

The sustainable combined location-inventory-routing problem (CLIRP) based on demand forecasting is studied in this paper. Based on the construction of a multi-stage demand forecasting model, five parts of total logistics costs: the costs of trunk tra...

  • Article
  • Open Access
8 Citations
3,555 Views
9 Pages

Optimal Allocation of Virtual Machines in Cloud Computing

  • Ming-Hua Lin,
  • Jung-Fa Tsai,
  • Yi-Chung Hu and
  • Tzu-Hsuan Su

15 December 2018

Virtualization is one of the core technologies used in cloud computing to provide services on demand for end users over the Internet. Most current research allocates virtual machines to physical machines based on CPU utilization. However, for many ap...

  • Article
  • Open Access
1 Citations
1,385 Views
19 Pages

An Innovative Hybrid Approach Producing Trial Solutions for Global Optimization

  • Vasileios Charilogis,
  • Glykeria Kyrou,
  • Ioannis G. Tsoulos and
  • Anna Maria Gianni

16 November 2024

Global optimization is critical in engineering, computer science, and various industrial applications as it aims to find optimal solutions for complex problems. The development of efficient algorithms has emerged from the need for optimization, with...

  • Review
  • Open Access
8 Citations
3,492 Views
28 Pages

20 May 2025

Interpretability is widely recognized as essential in machine learning, yet optimization models remain largely opaque, limiting their adoption in high-stakes decision-making. While optimization provides mathematically rigorous solutions, the reasonin...

  • Article
  • Open Access
28 Citations
2,806 Views
20 Pages

Point Cloud Registration Based on Multiparameter Functional

  • Artyom Makovetskii,
  • Sergei Voronin,
  • Vitaly Kober and
  • Aleksei Voronin

15 October 2021

The registration of point clouds in a three-dimensional space is an important task in many areas of computer vision, including robotics and autonomous driving. The purpose of registration is to find a rigid geometric transformation to align two point...

  • Article
  • Open Access
4 Citations
4,154 Views
18 Pages

Global Analysis and Optimal Control of a Periodic Visceral Leishmaniasis Model

  • Ibrahim M. ELmojtaba,
  • Santanu Biswas and
  • Joydev Chattopadhyay

14 December 2017

In this paper, we propose and analyze a mathematical model for the dynamics of visceral leishmaniasis with seasonality. Our results show that the disease-free equilibrium is globally asymptotically stable under certain conditions when R 0 , th...

  • Article
  • Open Access
10 Citations
12,337 Views
10 Pages

FOX, Current State and Possibilities

  • Radovan Černý,
  • Vincent Favre-Nicolin,
  • Jan Rohlíček and
  • Michal Hušák

24 October 2017

FOX (Free Objects for Xtallography) is a computer program for solving crystal structures of all types of compounds using the powder data (but also the single crystal data) measured using X-ray, neutron and electron diffraction. It works in direct spa...

  • Article
  • Open Access
9 Citations
4,366 Views
16 Pages

6 February 2023

To more effectively solve the complex optimization problems that exist in nonlinear, high-dimensional, large-sample and complex systems, many intelligent optimization methods have been proposed. Among these algorithms, the particle swarm optimization...

  • Article
  • Open Access
1 Citations
4,193 Views
14 Pages

Automated Dynamic Mascon Generation for GRACE and GRACE-FO Harmonic Processing

  • Yara Mohajerani,
  • David Shean,
  • Anthony Arendt and
  • Tyler C. Sutterley

7 August 2021

Commonly used mass-concentration (mascon) solutions estimated from Level-1B Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On data, provided by processing centers such as the Jet Propulsion Laboratory (JPL) or the Goddard Space Flig...

  • Article
  • Open Access
648 Views
33 Pages

The AC Optimal Power Flow (AC-OPF) problem remains a major computational bottleneck for real-time power system operation. Conventional solvers are accurate but time-consuming, while Graph Neural Networks (GNNs) offer faster approximations yet struggl...

  • Article
  • Open Access
10 Citations
3,144 Views
24 Pages

31 July 2020

Due to insufficient test data, insufficient constraint equations and uncertain objective function, the local optimal solution and the global optimal solution of the objective function in finite element model updating may represent the actual paramete...

  • Article
  • Open Access
13 Citations
6,756 Views
15 Pages

30 June 2017

As one of the evolutionary heuristics methods, genetic algorithms (GAs) have shown a promising ability to solve complex optimization problems. However, existing GAs still have difficulties in finding the global optimum and avoiding premature converge...

  • Article
  • Open Access
4 Citations
2,213 Views
17 Pages

20 August 2024

To overcome the limitations of single-type intelligent optimization algorithms prone to becoming stuck in local optima for complex problems, a hybrid intelligent optimization algorithm named SDIQ is proposed. This algorithm combines simulated anneali...

  • Article
  • Open Access
42 Citations
5,339 Views
23 Pages

A Hybrid Sparrow Search Algorithm of the Hyperparameter Optimization in Deep Learning

  • Yanyan Fan,
  • Yu Zhang,
  • Baosu Guo,
  • Xiaoyuan Luo,
  • Qingjin Peng and
  • Zhenlin Jin

22 August 2022

Deep learning has been widely used in different fields such as computer vision and speech processing. The performance of deep learning algorithms is greatly affected by their hyperparameters. For complex machine learning models such as deep neural ne...

  • Article
  • Open Access
2 Citations
1,651 Views
14 Pages

Global Genetic Algorithm for Automating and Optimizing Petroleum Well Deployment in Complex Reservoirs

  • Sonny Irawan,
  • Dennis Delali Kwesi Wayo,
  • Alfrendo Satyanaga and
  • Jong Kim

30 April 2024

Locating petroleum-productive wells using informed geological data, a conventional means, has proven to be tedious and undesirable by reservoir engineers. The former numerical simulator required a lengthy trial-and-error process to manipulate the var...

  • Feature Paper
  • Article
  • Open Access
17 Citations
3,714 Views
15 Pages

6 March 2021

The minimization of energy consumption is of the utmost importance in space robotics. For redundant manipulators tracking a desired end-effector trajectory, most of the proposed solutions are based on locally optimal inverse kinematics methods. On th...

  • Article
  • Open Access
2 Citations
1,873 Views
15 Pages

A Multi-Constrained Optimization Method for THz Backward Wave Oscillators

  • Rong Bao,
  • Yongdong Li,
  • Hongguang Wang and
  • Chunliang Liu

20 October 2022

The current design period for various backward wave oscillators (BWOs) is still at least several months. How to find the best structure parameters with an efficient and stable optimization method is a problem facing researchers in both scientific res...

  • Article
  • Open Access
2,025 Views
18 Pages

In this paper, a new approach to topology optimization using the parameterized level set function and genetic algorithm optimization methods is presented. The impact of a number of parameters describing the level set function in the representation of...

  • Article
  • Open Access
2 Citations
3,434 Views
19 Pages

2 August 2020

Vertical deformations caused by non-tidal mass variations still remain in global navigation satellite system (GNSS) height time series, and can be computed from both Gravity Recovery and Climate Experiment (GRACE) and geophysical models. In this stud...

  • Article
  • Open Access
5 Citations
3,528 Views
14 Pages

28 September 2021

This paper features the study of global optimization problems and numerical methods of their solution. Such problems are computationally expensive since the objective function can be multi-extremal, nondifferentiable, and, as a rule, given in the for...

  • Article
  • Open Access
6 Citations
2,492 Views
26 Pages

Fast Well Control Optimization with Two-Stage Proxy Modeling

  • Cuthbert Shang Wui Ng,
  • Ashkan Jahanbani Ghahfarokhi and
  • Wilson Wiranda

6 April 2023

Waterflooding is one of the methods used for increased hydrocarbon production. Waterflooding optimization can be computationally prohibitive if the reservoir model or the optimization problem is complex. Hence, proxy modeling can yield a faster solut...

  • Article
  • Open Access
11 Citations
3,464 Views
31 Pages

14 December 2022

The gravitational search algorithm is a global optimization algorithm that has the advantages of a swarm intelligence algorithm. Compared with traditional algorithms, the performance in terms of global search and convergence is relatively good, but t...

  • Feature Paper
  • Article
  • Open Access
19 Citations
4,347 Views
21 Pages

A number of evolutionary algorithms such as genetic algorithms, simulated annealing, particle swarm optimization, etc., have been used by researchers in order to optimize different manufacturing processes. In many cases these algorithms are either in...

  • Article
  • Open Access
6 Citations
3,587 Views
18 Pages

16 August 2021

With the rapid development and wide application of the Internet of Things (IoT), how to provide timely and fresh information for strategic analysis and decision-making has become a key issue. Recent studies have shown that preemption strategies are o...

  • Article
  • Open Access
16 Citations
3,404 Views
16 Pages

Hyperspectral Band Selection via Optimal Combination Strategy

  • Shuying Li,
  • Baidong Peng,
  • Long Fang and
  • Qiang Li

15 June 2022

Band selection is one of the main methods of reducing the number of dimensions in a hyperspectral image. Recently, various methods have been proposed to address this issue. However, these methods usually obtain the band subset in the perspective of a...

  • Article
  • Open Access
5 Citations
1,983 Views
17 Pages

6 March 2024

This work discusses the electric vehicle (EV) ordered charging planning (OCP) optimization problem. To address this issue, an improved dual-population genetic moth–flame optimization (IDPGMFO) is proposed. Specifically, to obtain an appreciativ...

  • Article
  • Open Access
2 Citations
2,409 Views
17 Pages

A Hybrid of Fully Informed Particle Swarm and Self-Adaptive Differential Evolution for Global Optimization

  • Shir Li Wang,
  • Sarah Hazwani Adnan,
  • Haidi Ibrahim,
  • Theam Foo Ng and
  • Parvathy Rajendran

9 November 2022

Evolutionary computation algorithms (EC) and swarm intelligence have been widely used to solve global optimization problems. The optimal solution for an optimization problem is called by different terms in EC and swarm intelligence. It is called indi...

  • Article
  • Open Access
1,086 Views
51 Pages

10 September 2025

This study presents an improved variant of the greater cane rat algorithm (GCRA), called adaptive and global-guided greater cane rat algorithm (AGG-GCRA), which aims to alleviate some key limitations of the original GCRA regarding convergence speed,...

  • Article
  • Open Access
1,398 Views
17 Pages

21 October 2023

In this work, we analyze a bilinear optimal control problem related to a 2D parabolic–elliptic chemo-repulsion system with a nonlinear chemical signal production term. We prove the existence of global optimal solutions with bilinear control, an...

  • Article
  • Open Access
13 Citations
4,985 Views
18 Pages

Solution to Solid Wood Board Cutting Stock Problem

  • Min Tang,
  • Ying Liu,
  • Fenglong Ding and
  • Zhengguang Wang

24 August 2021

In the production process for wooden furniture, the raw material costs account for more than 50% of furniture costs, and the utilization rate of raw materials depends mainly on the layout scheme. Therefore, a reasonable layout is an important measure...

  • Article
  • Open Access
1,717 Views
26 Pages

Station arrangement optimization of photoelectric theodolites in shooting ranges presents a non-convex and non-linear problem, and the method required to seek the global optimal solution remains an open question. This paper proposes an efficient trav...

  • Feature Paper
  • Article
  • Open Access
30 Citations
3,133 Views
24 Pages

A Combined Model Incorporating Improved SSA and LSTM Algorithms for Short-Term Load Forecasting

  • Mingchong Han,
  • Jianwei Zhong,
  • Pu Sang,
  • Honghua Liao and
  • Aiguo Tan

To address the current difficulties and problems of short-term load forecasting (STLF), this paper proposes a combined forecasting method based on the improved sparrow search algorithm (ISSA), with fused Cauchy mutation and opposition-based learning...

  • Article
  • Open Access
4 Citations
1,890 Views
15 Pages

5 December 2022

To address multi-modal multi-objective problems (MMOPs), this paper proposes a wolf pack optimization algorithm using random adaptive-shrinking grid search (RASGS) and raid towards global best archive (GBA) for MMOPs. Firstly, RASGS with logical symm...

  • Article
  • Open Access
4 Citations
1,503 Views
30 Pages

To address the drawbacks of the traditional snake optimization method, such as a random population initialization, slow convergence speed, and low accuracy, an adaptive t-distribution mixed mutation snake optimization strategy is proposed. Initially,...

  • Article
  • Open Access
163 Views
30 Pages

26 February 2026

Addressing the multi-constraint, nonlinear optimization challenge of trajectory planning for multi-rotor agents in urban high-rise environments, this paper proposes an improved hybridization of Harris hawks optimization (HHO) with a pigeon-inspired o...

  • Article
  • Open Access
7 Citations
2,982 Views
20 Pages

4 March 2021

Over the last decade, metaheuristic algorithms have emerged as a powerful paradigm for global optimization of multimodal functions formulated by nonlinear problems arising from various engineering subjects. However, numerical analyses of many complex...

  • Article
  • Open Access
2 Citations
1,323 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...

  • Article
  • Open Access
8 Citations
2,774 Views
18 Pages

Hybrid GA-SOCP Approach for Placement and Sizing of Distributed Generators in DC Networks

  • Oscar Danilo Montoya,
  • Walter Gil-González and
  • Luis Fernando Grisales-Noreña

2 December 2020

This research addresses the problem of the optimal location and sizing distributed generators (DGs) in direct current (DC) distribution networks from the combinatorial optimization. It is proposed a master–slave optimization approach in order t...

  • Article
  • Open Access
6 Citations
1,827 Views
20 Pages

Multi-Objective Dispatch of PV Plants in Monopolar DC Grids Using a Weighted-Based Iterative Convex Solution Methodology

  • Oscar Danilo Montoya,
  • Luis Fernando Grisales-Noreña and
  • Diego Armando Giral-Ramírez

15 January 2023

The design of an efficient energy management system (EMS) for monopolar DC networks with high penetration of photovoltaic generation plants is addressed in this research through a convex optimization point of view. The EMS is formulated as a multi-ob...

  • Feature Paper
  • Article
  • Open Access
261 Views
20 Pages

25 December 2025

This paper investigates the large time behavior of solutions to the 2D micropolar equations with partial dissipation. When there is mixed velocity dissipation and positive angular viscosity, we obtain the optimal decay estimates to the global solutio...

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