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178 Results Found

  • Article
  • Open Access
6 Citations
3,954 Views
20 Pages

12 December 2024

Short-Term Load Forecasting (STLF) is essential for the efficient management of power systems, as it improves forecasting accuracy while optimizing power scheduling efficiency. Despite significant recent advancements in STLF models, forecasting accur...

(This article belongs to the Special Issue Advances in Neural Networks and Deep Learning)
  • Article
  • Open Access
28 Citations
5,900 Views
17 Pages

Dual-Polarized L-Band SAR Imagery for Temporal Monitoring of Marine Oil Slick Concentration

  • Sébastien Angelliaume,
  • Olivier Boisot and
  • Charles-Antoine Guérin

25 June 2018

SAR sensors are usually used in the offshore domain to detect marine oil slicks which allows the authorities to guide cleanup operations or prosecute polluters. As radar imagery can be used any time of day or year and in almost any weather conditions...

(This article belongs to the Special Issue Oil Spill Remote Sensing)
  • Article
  • Open Access
438 Views
18 Pages

11 September 2026

We study the universal approximation properties of transformers and neural integral operators for operators in Banach spaces. In particular, we show that the transformer architecture is a universal approximator of integral operators between Höld...

(This article belongs to the Special Issue Functional Data Analysis and Its Application)
  • Feature Paper
  • Article
  • Open Access
1,784 Views
13 Pages

Necessary and Sufficient Reservoir Condition for Universal Reservoir Computing

  • Shuhei Sugiura,
  • Ryo Ariizumi,
  • Toru Asai and
  • Shun-ichi Azuma

28 October 2025

We discuss necessary and sufficient conditions for universal approximation using reservoir computing. Reservoir computing is a machine learning method used to train a dynamical system model by tuning only the static part of the model. The universalit...

(This article belongs to the Special Issue Machine Learning: Mathematical Foundations and Applications)
  • Article
  • Open Access
8 Citations
2,584 Views
21 Pages

9 February 2022

The rough set model for dual universes and multi granulation over dual universes is an interesting generalization of the Pawlak rough set model. In this paper, we present a pessimistic multigranulation roughness of a fuzzy set based on soft binary re...

(This article belongs to the Special Issue Fuzzy Sets and Artificial Intelligence)
  • Article
  • Open Access
2 Citations
1,799 Views
9 Pages

26 June 2022

This paper is concerned with the sequence of positive linear operators obtained by certain generating functions of polynomials and with investigation of its approximation properties in detail. Initially, the convergence theorem is expressed for the s...

  • Article
  • Open Access
16 Citations
2,937 Views
22 Pages

15 October 2021

Multigranulation rough set (MGRS) based on soft relations is a very useful technique to describe the objectives of problem solving. This MGRS over two universes provides the combination of multiple granulation knowledge in a multigranulation space. T...

(This article belongs to the Special Issue Fuzzy Logic and Soft Computing – Dedicated to the Centenary of the Birth of Lotfi A. Zadeh (1921-2017))
  • Article
  • Open Access
3 Citations
1,367 Views
19 Pages

Bi-Fuzzy S-Approximation Spaces

  • Ronghai Wang,
  • Xiaojie Xie and
  • Huilai Zhi

20 January 2025

The S-approximation spaces are significant extension of the rough set model and have been widely applied in intelligent decision-making. However, traditional S-approximation spaces are limited to two crisp universes, whereas bi-fuzzy universes (i.e.,...

(This article belongs to the Section D2: Operations Research and Fuzzy Decision Making)
  • Article
  • Open Access
2 Citations
4,475 Views
29 Pages

Granular Structure of Type-2 Fuzzy Rough Sets over Two Universes

  • Juan Lu,
  • De-Yu Li,
  • Yan-Hui Zhai and
  • He-Xiang Bai

21 November 2017

Granular structure plays a very important role in the model construction, theoretical analysis and algorithm design of a granular computing method. The granular structures of classical rough sets and fuzzy rough sets have been proven to be clear. In...

(This article belongs to the Special Issue Fuzzy Sets Theory and Its Applications)
  • Article
  • Open Access
47 Citations
8,359 Views
25 Pages

20 July 2011

It is no longer considered surprising that black holes have temperatures and entropies. What remains surprising, though, is the universality of these thermodynamic properties: their exceptionally simple and general form, and the fact that they can be...

(This article belongs to the Special Issue Black Hole Thermodynamics)
  • Article
  • Open Access
3 Citations
4,151 Views
23 Pages

Maxwell’s True Current

  • Robert S. Eisenberg

Maxwell defined a ‘true’ or ‘total’ current in a way not widely used today. He said that “… true electric current … is not the same thing as the current of conduction but that the time-variation of the elec...

(This article belongs to the Special Issue 10th Anniversary of Computation—Computational Engineering)
  • Article
  • Open Access
17 Citations
4,977 Views
19 Pages

17 July 2017

In this paper, we extend the rough set model on two different universes in intuitionistic fuzzy approximation spaces to a single-valued neutrosophic environment. Firstly, based on the ( α , β , γ ) -cut relation R ˜ { ( α , β , γ ) } ...

(This article belongs to the Special Issue Neutrosophic Theories Applied in Engineering)
  • Article
  • Open Access
1 Citations
4,669 Views
10 Pages

COVID-19 has made virtual interactions an integral part of learning modes. This made it possible for college students to live further away from school than before, which might change the house price neighboring universities. This article studies the...

(This article belongs to the Special Issue Shocks, Public Policies and Housing Markets)
  • Review
  • Open Access
1,508 Views
25 Pages

10 April 2026

We summarize our research program on the use of coherent states and covariant integral quantization in quantum cosmology. In particular, we present a recent development within this framework and include new results that shed light on some of its basi...

(This article belongs to the Special Issue Symmetry in Mathematical Physics: Current Topics and Recent Advances—in Honour of Professor Jean-Pierre Gazeau on the Occasion of His 80th Birthday)
  • Article
  • Open Access
4 Citations
6,276 Views
14 Pages

9 March 2016

The distribution of word probabilities in the monkey model of Zipf’s law is associated with two universality properties: (1) the exponent in the approximate power law approaches −1...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
1,534 Views
16 Pages

22 August 2023

The relationship between Rough Set (RS) and algebraic systems has been long studied by mathematicians. RS is a growing research area that encourages studies into both real-world applications and the theory itself. In RS, a universe subset is characte...

(This article belongs to the Special Issue Recent Advances in Fuzzy Sets and Related Topics)
  • Article
  • Open Access
28 Citations
8,022 Views
10 Pages

The Mechanical and Electronic Properties of Carbon-Rich Silicon Carbide

  • Qingyang Fan,
  • Changchun Chai,
  • Qun Wei and
  • Yintang Yang

30 April 2016

A systematic investigation of structural, mechanical, anisotropic, and electronic properties of SiC2 and SiC4 at ambient pressure using the density functional theory with generalized gradient approximation is reported in this work. Mechanical propert...

(This article belongs to the Special Issue Computational Multiscale Modeling and Simulation in Materials Science)
  • Article
  • Open Access
1 Citations
1,576 Views
9 Pages

28 September 2022

The property of zeta functions on mixed joint universality in the Voronin’s sense states that any two holomorphic functions can be approximated simultaneously with an accuracy of ε>0 by suitable vertical shifts of the pair consisting...

  • Article
  • Open Access
18 Citations
2,780 Views
23 Pages

Pessimistic Multigranulation Rough Set of Intuitionistic Fuzzy Sets Based on Soft Relations

  • Muhammad Zishan Anwar,
  • Ahmad N. Al-Kenani,
  • Shahida Bashir and
  • Muhammad Shabir

22 February 2022

Qian presented multigranulation rough set (MGRS) models based on Pawlak’s rough set (RS) model. There are two types of MGRS models, named optimistic MGRS and pessimistic MGRS. Recently, Shabir et al. presented an optimistic multigranulation int...

(This article belongs to the Special Issue New Trends in Fuzzy Sets Theory and Their Extensions)
  • Article
  • Open Access
145 Views
42 Pages

Aggregation of First-Type L-Fuzzy Rough Approximation Operator

  • Fatimah Alghamdi,
  • Álvaro Antón-Sancho and
  • Samer R. Yaseen

21 October 2026

First-type L-fuzzy rough approximation operators have so far been studied relative to a single L-fuzzy relation on a universe of discourse, an assumption at odds with the way multi-source, multi-sensor, and multi-granular information systems are actu...

(This article belongs to the Special Issue Fuzzy Sets and Fuzzy Algebras)
  • Article
  • Open Access
3 Citations
3,812 Views
23 Pages

Preparing Property Graduates for the Digital Age: Challenges and Strategies from the Perspective of Australian Property Educators

  • Rotimi Boluwatife Abidoye,
  • Albert Agbeko Ahiadu,
  • Mustapha Bangura,
  • Chibuikem Michael Adilieme and ,
  • Tunbosun Biodun Oyedokun and
  • Abood Khaled Alamoudi
  • + 1 author+ 0 author

9 January 2024

The work readiness of property graduates is the subject of global discourse and is an increasingly critical gap as employers demand professionals with competencies in their fundamental roles and digital technologies. Although these issues have been e...

(This article belongs to the Special Issue Studies on the Real Estate Market and Property Management in the Post-pandemic Era)
  • Article
  • Open Access
1,937 Views
15 Pages

29 April 2025

The composition and physical state of dark matter remain among the most pressing unresolved questions in modern physics. Addressing these questions is crucial to our understanding of the Universe’s structure. In this work, we explore the hypoth...

(This article belongs to the Special Issue Neutrino Physics and Symmetries)
  • Feature Paper
  • Article
  • Open Access
3 Citations
4,643 Views
13 Pages

26 February 2025

The famous Riemann hypothesis (RH) asserts that all non-trivial zeros of the Riemann zeta function ζ(s) (zeros different from s=−2m, m∈N) lie on the critical line σ=1/2. In this paper, combining the universality property of &zet...

  • Article
  • Open Access
9 Citations
4,211 Views
15 Pages

ReLU Neural Networks and Their Training

  • Ge Luo,
  • Xugang Wang,
  • Weizun Zhao,
  • Sichen Tao and
  • Zheng Tang

22 December 2025

Among various activation functions, the Rectified Linear Unit (ReLU) has become the most widely adopted due to its computational simplicity and effectiveness in mitigating the vanishing-gradient problem. In this work, we investigate the advantages of...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
8 Citations
2,959 Views
14 Pages

4 January 2022

In this paper, we introduce a new type of matter that has origin in p-adic strings, i.e., strings with a p-adic worldsheet. We investigate some properties of this p-adic matter, in particular its cosmological aspects. We start with crossing symmetric...

(This article belongs to the Special Issue Symmetry in Mathematical and Theoretical Physics)
  • Article
  • Open Access
9 Citations
4,279 Views
13 Pages

Identifying the Psychometric Properties of the Malay Version of the WHOQOL-BREF among Employees with Obesity Problem

  • Mohd Helma Rusyda,
  • Nor Ba’yah Abdul Kadir,
  • Wan Nur Khairunnisa Ismail,
  • Siti Jamiaah Abdul Jalil and ,
  • Nurul-Azza Abdullah,
  • Arena Che Kasim,
  • Suzana Mohd. Hoesni and
  • Mohd Rizal Abdul Manaf
  • + 3 authors+ 0 author

The Malay version of the WHOQOL-BREF was published approximately 15 years ago. Since then, no known research has been conducted to identify the psychometric properties of the scale using confirmatory factor analysis. This study aimed to establish a m...

(This article belongs to the Section Health-Related Quality of Life and Well-Being)
  • Article
  • Open Access
66 Citations
3,879 Views
30 Pages

Essential Quantum Einstein Gravity

  • Alessio Baldazzi and
  • Kevin Falls

10 August 2021

The non-perturbative renormalisation of quantum gravity is investigated allowing for the metric to be reparameterised along the RG flow, such that only the essential couplings constants are renormalised. This allows us to identify a universality clas...

(This article belongs to the Special Issue Asymptotic Safety in Quantum Gravity)
  • Article
  • Open Access
3 Citations
2,477 Views
14 Pages

24 April 2024

The question of the global topology of the Universe (cosmic topology) is still open. In the ΛCDM concordance model, it is assumed that the space of the Universe possesses the trivial topology of R3, and thus that the Universe has an infinite volume....

(This article belongs to the Special Issue Cosmic Microwave Background)
  • Article
  • Open Access
15 Citations
6,017 Views
14 Pages

Theoretical Investigations of Si-Ge Alloys in P42/ncm Phase: First-Principles Calculations

  • Zhenyang Ma,
  • Xuhong Liu,
  • Xinhai Yu,
  • Chunlei Shi and
  • Fang Yan

31 May 2017

The structural, mechanical, anisotropic, electronic and thermal properties of Si, Si0.667Ge0.333, Si0.333Ge0.667 and Ge in P42/ncm phase are investigated in this work. The calculations have been performed with an ultra-soft pseudopotential by using t...

(This article belongs to the Section Advanced Materials Characterization)
  • Article
  • Open Access
1 Citations
2,251 Views
12 Pages

11 March 2023

We study the general property of the evolution of a class of scalar fields with tracking and thawing behaviors. For the tracking solutions, we show explicitly with three different potentials that, independent of initial conditions, there exists a gen...

(This article belongs to the Section Cosmology)
  • Article
  • Open Access
15 Citations
4,440 Views
15 Pages

18 January 2022

An oxide scale formed on the surface of metal anodes is crucial for determining the overall quality of molten salt electrolysis (MSE), particularly for the durability of the anode materials. However, the material properties of oxide scales are yet to...

(This article belongs to the Special Issue Advanced Properties of Engineering Thin Films and Materials)
  • Article
  • Open Access
12 Citations
1,774 Views
13 Pages

The Mean Square of the Hurwitz Zeta-Function in Short Intervals

  • Antanas Laurinčikas and
  • Darius Šiaučiūnas

28 July 2024

The Hurwitz zeta-function ζ(s,α), s=σ+it, with parameter 0<α⩽1 is a generalization of the Riemann zeta-function ζ(s) (ζ(s,1)=ζ(s)) and was introduced at the end of the 19th century. The function ζ(...

(This article belongs to the Special Issue The Pythagorean Heritage: From Number Theory and Combinatorics to Artificial Intelligence)
  • Article
  • Open Access
2 Citations
2,780 Views
19 Pages

17 December 2024

In this letter, we highlight the structure and main properties of an abstract approach to quantum cosmology and gravity, dubbed SU(∞)-QGR. Beginning from the concept of the Universe as an isolated quantum system, the main axiom of the model is...

(This article belongs to the Special Issue Symmetry in Gravity Theories and Cosmology)
  • Article
  • Open Access
71 Citations
9,472 Views
12 Pages

The Arabic Version of the Cohen Perceived Stress Scale: Factorial Validity and Measurement Invariance

  • Amira Mohammed Ali,
  • Amin Omar Hendawy,
  • Ohoud Ahmad,
  • Haleama Al Sabbah and ,
  • Linda Smail and
  • Hiroshi Kunugi
  • + 1 author+ 0 author

University students experience high levels of stress due to university transition, academic commitments, and financial matters. Higher stress perceptions along with limited coping resources endanger mental health for a considerable number of students...

  • Article
  • Open Access
10 Citations
4,230 Views
21 Pages

26 March 2021

Strong magnetic fields impact quantum-chromodynamics (QCD) properties in several situations; examples include the early universe, magnetars, and heavy-ion collisions. These examples share a common trait—time evolution. A prominent QCD property impact...

(This article belongs to the Special Issue Advances in Chiral Quark Models)
  • Article
  • Open Access
1 Citations
6,524 Views
8 Pages

11 February 2022

Among many research areas to which Ron Yager contributed are decision making under uncertainty (in particular, under interval and fuzzy uncertainty) and aggregation—where he proposed, analyzed, and utilized ordered weighted averaging (OWA). The...

(This article belongs to the Special Issue New Trend on Fuzzy Systems and Intelligent Decision Making Theory: A Themed Issue Dedicated to Dr. Ronald R. Yager)
  • Review
  • Open Access
4 Citations
4,416 Views
26 Pages

Recent Progress in Lattice Density Functional Theory

  • T. S. Müller,
  • W. Töws and
  • G. M. Pastor

Recent developments in the density-functional theory of electron correlations in many-body lattice models are reviewed. The theoretical framework of lattice density-functional theory (LDFT) is briefly recalled, giving emphasis to its universality and...

(This article belongs to the Section Computational Chemistry)
  • Article
  • Open Access
2,114 Views
18 Pages

Computation of the Spatial Distribution of Charge-Carrier Density in Disordered Media

  • Alexey V. Nenashev,
  • Florian Gebhard,
  • Klaus Meerholz and
  • Sergei D. Baranovskii

24 April 2024

The space- and temperature-dependent electron distribution n(r,T) determines optoelectronic properties of disordered semiconductors. It is a challenging task to get access to n(r,T) in random potentials, while avoiding the time-consuming numerical so...

(This article belongs to the Section Statistical Physics)
  • Article
  • Open Access
338 Views
17 Pages

24 September 2026

Mirror viewing is closely related to body image and self-evaluation. The Mirror Image Comfort and Avoidance Scale (MICAS) assesses individuals’ comfort with and avoidance of viewing their own reflection. This study aimed to culturally adapt the...

(This article belongs to the Special Issue Understanding Mental Health and Well-Being in University Students)
  • Article
  • Open Access
7 Citations
4,690 Views
13 Pages

16 January 2025

Feed-forward neural networks (NNs) are widely used for the machine learning of properties of materials and molecules from descriptors of their composition and structure (materials informatics) as well as in other physics and chemistry applications. O...

(This article belongs to the Section Application of New Technologies: Artificial Intelligence, Virtual Reality, Quantum Computing and Machine Learning)
  • Article
  • Open Access
6 Citations
3,049 Views
10 Pages

17 October 2022

Paulownia tomentosa, a tree species that allows for efficient production of translucent wood, was selected as an experimental wood species in this study, and a two-step process of delignification and polymer impregnation was performed. For delignific...

(This article belongs to the Section Polymer Composites and Nanocomposites)
  • Article
  • Open Access
1,096 Views
23 Pages

13 November 2025

We revisit Probabilistic Boolean Networks as trainable function approximators. The key obstacle, non-differentiable structural choices (which predictors to read and which Boolean operators to apply), is addressed by casting the PBN’s structure...

  • Article
  • Open Access
6 Citations
6,811 Views
36 Pages

19 November 2010

We argue that quantum theory should proceed not from a spacetime background but from a Lie algebra, which is treated as a symmetry algebra. Then the fact that the cosmological constant is positive means not that the spacetime background is curved but...

(This article belongs to the Special Issue Quantum Symmetry)
  • Article
  • Open Access
15 Citations
1,942 Views
32 Pages

29 March 2025

This study systematically explores the structural stability, mechanical properties, elastic anisotropy, fracture toughness, and thermophysical characteristics of Au3In and Au3In2 intermetallic compounds (IMCs) through density functional theory (DFT)...

(This article belongs to the Special Issue Physical Metallurgy of Metals and Alloys (3rd Edition))
  • Article
  • Open Access
34 Citations
8,419 Views
8 Pages

Si96: A New Silicon Allotrope with Interesting Physical Properties

  • Qingyang Fan,
  • Changchun Chai,
  • Qun Wei,
  • Peikun Zhou and ,
  • Junqin Zhang and
  • Yintang Yang
  • + 1 author+ 0 author

13 April 2016

The structural mechanical properties and electronic properties of a new silicon allotrope Si96 are investigated at ambient pressure by using a first-principles calculation method with the ultrasoft pseudopotential scheme in the framework of generaliz...

(This article belongs to the Special Issue Computational Multiscale Modeling and Simulation in Materials Science)
  • Article
  • Open Access
15 Citations
6,598 Views
18 Pages

Generalized Ising Model on a Scale-Free Network: An Interplay of Power Laws

  • Mariana Krasnytska,
  • Bertrand Berche,
  • Yurij Holovatch and
  • Ralph Kenna

7 September 2021

We consider a recently introduced generalization of the Ising model in which individual spin strength can vary. The model is intended for analysis of ordering in systems comprising agents which, although matching in their binarity (i.e., maintaining...

(This article belongs to the Special Issue Ising Model: Recent Developments and Exotic Applications)
  • Article
  • Open Access
243 Views
12 Pages

27 August 2026

In this paper, we introduce a novel index of transitivity for fuzzy relations based on fuzzy equality. The proposed index evaluates the supremal uniform fuzzy-equality proximity between a given relation and the family of exactly transitive relations...

(This article belongs to the Special Issue Advances in Fuzzy Mathematics)
  • Article
  • Open Access
43 Citations
5,041 Views
13 Pages

Optimizing the Organic Solar Cell Manufacturing Process by Means of AFM Measurements and Neural Networks

  • Giacomo Capizzi,
  • Grazia Lo Sciuto,
  • Christian Napoli,
  • Rafi Shikler and
  • Marcin Woźniak

10 May 2018

In this paper we devise a neural-network-based model to improve the production workflow of organic solar cells (OSCs). The investigated neural model is used to reckon the relation between the OSC’s generated power and several device’s properties such...

  • Article
  • Open Access
10 Citations
5,307 Views
10 Pages

31 January 2019

Most multi-target tracking filters assume that one target and its observation follow a Hidden Markov Chain (HMC) model, but the implicit independence assumption of the HMC model is invalid in many practical applications, and a Pairwise Markov Chain (...

  • Article
  • Open Access
4 Citations
2,678 Views
11 Pages

Development of a Bionic Tube with High Bending-Stiffness Properties Based on Human Tibiofibular Shapes

  • Jianqiao Jin,
  • Kunyang Wang,
  • Lei Ren,
  • Zhihui Qian and ,
  • Xuewei Lu,
  • Wei Liang,
  • Xiaohan Xu,
  • Shun Zhao,
  • Di Zhao and
  • Luquan Ren
  • + 6 authors+ 1 author

The human tibiofibular complex has undergone a long evolutionary process, giving its structure a high bearing-capacity. The distinct tibiofibular shape can be used in engineering to acquire excellent mechanical properties. In this paper, four types o...

(This article belongs to the Special Issue Bio-Inspired Design and Optimisation of Engineering Systems)

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