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148 Results Found

  • Feature Paper
  • Article
  • Open Access
13 Citations
9,192 Views
30 Pages

In this article, we survey the sensor network calculus (SensorNC), a framework continuously developed since 2005 to support the predictable design, control and management of large-scale wireless sensor networks with timing constraints. It is rooted i...

  • Article
  • Open Access
7 Citations
2,412 Views
13 Pages

11 July 2024

The history of variational calculus dates back to the late 17th century when Johann Bernoulli presented his famous problem concerning the brachistochrone curve. Since then, variational calculus has developed intensively as many problems in physics an...

  • Article
  • Open Access
1 Citations
2,175 Views
8 Pages

Stochastic Network Calculus-Aided Delay Analysis of Wireless-Power Line Mixed Networks

  • Zheng Li,
  • Haiming Hong,
  • Lin Pang,
  • Muyu Mei and
  • Qinghai Yang

In this paper, we investigate the delay performance of a wireless-power line mixed network via a stochastic network calculus (SNC)-based approach. The data transmission in this mixed network is modeled by a two-stage tandem queue, wherein the data is...

  • Article
  • Open Access
6 Citations
2,753 Views
17 Pages

Bounding the Upper Delays of the Tactile Internet Using Deterministic Network Calculus

  • Qian Wang,
  • Ziying Mo,
  • Benle Yin,
  • Lianming Zhang and
  • Pingping Dong

With the increasing popularity of time-sensitive network applications and the gradual integration of the Tactile Internet into people’s lives, how to ensure ultra-low latency has become a demand and challenge for network performance. Therefore,...

  • Article
  • Open Access
1 Citations
2,876 Views
18 Pages

Network Calculus Approach for Packet Delay Variation Analysis of Multi-Hop Wired Networks

  • Rahul Nandkumar Gore,
  • Elena Lisova,
  • Johan Åkerberg and
  • Mats Björkman

4 November 2022

The Industrial Internet of Things (IIoT) has revolutionized businesses by changing the way data are used to make products and services more efficient, reliable, and profitable. To achieve the improvement goals, the IIoT must guarantee the real-time p...

  • Article
  • Open Access
20 Citations
4,745 Views
27 Pages

25 April 2021

Deterministic latency is an urgent demand to pursue the continuous increase in intelligence in several real-time applications, such as connected vehicles and automation industries. A time-sensitive network (TSN) is a new framework introduced to serve...

  • Article
  • Open Access
42 Citations
10,168 Views
33 Pages

22 May 2017

Ethernet-AVB/TSN (Audio Video Bridging/Time-Sensitive Networking) and AFDX (Avionics Full DupleX switched Ethernet) are switched Ethernet technologies, which are both candidates for real-time communication in the context of transportation systems. AF...

  • Article
  • Open Access
7 Citations
3,751 Views
15 Pages

19 June 2021

The electric grid is becoming increasingly cyber-physical with the addition of smart technologies, new communication interfaces, and automated grid-support functions. Because of this, it is no longer sufficient to only study the physical system dynam...

  • Article
  • Open Access
3 Citations
2,661 Views
14 Pages

This study derives a learning algorithm for a quaternion neural network using the steepest descent method extended to quaternion numbers. This applies the generalised Hamiltonian–Real calculus to obtain derivatives of a real–valued cost f...

  • Review
  • Open Access
16 Citations
6,239 Views
36 Pages

Fractional Calculus Meets Neural Networks for Computer Vision: A Survey

  • Cecília Coelho,
  • M. Fernanda P. Costa and
  • Luís L. Ferrás

7 August 2024

Traditional computer vision techniques aim to extract meaningful information from images but often depend on manual feature engineering, making it difficult to handle complex real-world scenarios. Fractional calculus (FC), which extends derivatives t...

  • Article
  • Open Access
3 Citations
2,486 Views
18 Pages

MAPPNet: A Multi-Scale Attention Pyramid Pooling Network for Dental Calculus Segmentation

  • Tianyu Nie,
  • Shihong Yao,
  • Di Wang,
  • Conger Wang and
  • Yishi Zhao

19 August 2024

Dental diseases are among the most prevalent diseases globally, and accurate segmentation of dental calculus images plays a crucial role in periodontal disease diagnosis and treatment planning. However, the current methods are not stable and reliable...

  • Article
  • Open Access
5 Citations
2,297 Views
16 Pages

22 July 2021

The paper discusses the problem of performance and timing parameters with respect to the validation of digital instrumentation and control systems (I&C). Statistical methods often implicitly assume that the probability distribution law of the est...

  • Article
  • Open Access
1 Citations
1,034 Views
59 Pages

30 June 2025

This work presents a comprehensive mathematical framework for symmetrized neural network operators operating under the paradigm of fractional calculus. By introducing a perturbed hyperbolic tangent activation, we construct a family of localized, symm...

  • Article
  • Open Access
1,280 Views
15 Pages

Network Goodness Calculus Propositions

  • Marina Bershadsky,
  • Božidar Ivanković and
  • Marko Pušić

We coin the term “network goodness” for a value we define for a network embedded in a given environment as a metric that describes the suitability of that network for meeting a demand. Three formulas are proposed to calculate the metric f...

  • Article
  • Open Access
24 Citations
7,467 Views
11 Pages

30 September 2013

In this work, we introduce a generalization of the differential polynomial neural network utilizing fractional calculus. Fractional calculus is taken in the sense of the Caputo differential operator. It approximates a multi-parametric function with p...

  • Article
  • Open Access
1,125 Views
17 Pages

28 June 2023

Significant progress has been made in incorporating fractional calculus into the projection and lag synchronization of complex networks. However, real-world networks are highly complex, making the fractional derivative used in complex dynamics more s...

  • Article
  • Open Access
1 Citations
2,798 Views
14 Pages

Delay Bound Optimization in NoC Using a Discrete Firefly Algorithm

  • Gaoming Du,
  • Chao Tian,
  • Zhenmin Li,
  • Duoli Zhang,
  • Chuan Zhang,
  • Xiaolei Wang and
  • Yongsheng Yin

9 December 2019

The delay bound in system on chips (SoC) represents the worst-case traverse time of on-chip communication. In network on chip (NoC)-based SoC, optimizing the delay bound is challenging due to two aspects: (1) the delay bound is hard to obtain by trad...

  • Proceeding Paper
  • Open Access
907 Views
7 Pages

Fractional-Order Predictive PI Controller-Based Dead-Time Compensator for Wireless Networks

  • P. Arun Mozhi Devan,
  • Rosdiazli Ibrahim,
  • Madiah Omar,
  • Kishore Bingi and
  • Hakim Abdulrab

4 December 2023

Wireless technology is increasingly significant in today’s industrial landscape. Standards like WirelessHART, ZigBee, and ISA100.11a are being widely used. However, despite their widespread use, wireless networks may sometimes be susceptible to...

  • Article
  • Open Access
13 Citations
2,703 Views
10 Pages

Impact of Noisy Labels on Dental Deep Learning—Calculus Detection on Bitewing Radiographs

  • Martha Büttner,
  • Lisa Schneider,
  • Aleksander Krasowski,
  • Joachim Krois,
  • Ben Feldberg and
  • Falk Schwendicke

23 April 2023

Supervised deep learning requires labelled data. On medical images, data is often labelled inconsistently (e.g., too large) with varying accuracies. We aimed to assess the impact of such label noise on dental calculus detection on bitewing radiograph...

  • Article
  • Open Access
3 Citations
1,575 Views
21 Pages

Dynamic Hierarchical Optimization for Train-to-Train Communication System

  • Haifeng Song,
  • Mingxuan Xu,
  • Yu Cheng,
  • Xiaoqing Zeng and
  • Hairong Dong

26 December 2024

To enhance the operational efficiency of high-speed trains (HSTs), Train-to-Train (T2T) communication has received considerable attention. This paper introduces a T2T cooperative communication model that allows direct information exchange between HST...

  • Article
  • Open Access
7 Citations
2,476 Views
15 Pages

12 July 2021

The emerging sixth-generation networks have to provide effective support to a wide plethora of novel disruptive heterogeneous applications. This paper models the probabilistic end-to-end delay bound for the virtual reality services in the presence of...

  • Article
  • Open Access
536 Views
13 Pages

12 November 2025

In 5G cellular networks, end-to-end data transmission delay is a key metric for evaluating network performance. High-frequency signal fading and complex transmission links often lead to increased delays. Pinching-antenna optimizes signal propagation...

  • Feature Paper
  • Article
  • Open Access
1 Citations
4,721 Views
20 Pages

DCSS Protocol for Data Caching and Sharing Security in a 5G Network

  • Ed Kamya Kiyemba Edris,
  • Mahdi Aiash and
  • Jonathan Loo

7 July 2021

Fifth Generation mobile networks (5G) promise to make network services provided by various Service Providers (SP) such as Mobile Network Operators (MNOs) and third-party SPs accessible from anywhere by the end-users through their User Equipment (UE)....

  • Article
  • Open Access
5 Citations
2,527 Views
35 Pages

Fractional Transfer Entropy Networks: Short- and Long-Memory Perspectives on Global Stock Market Interactions

  • Ömer Akgüller,
  • Mehmet Ali Balcı,
  • Larissa Margareta Batrancea and
  • Lucian Gaban

This study addresses the challenge of capturing both short-run volatility and long-run dependencies in global stock markets by introducing fractional transfer entropy (FTE), a new framework that embeds fractional calculus into transfer entropy. FTE a...

  • Article
  • Open Access
1 Citations
575 Views
23 Pages

Nabla Fractional Distributed Nash Seeking for Non-Cooperative Games

  • Yao Xiao,
  • Sunming Ge,
  • Yihao Qiao,
  • Tieqiang Gang and
  • Lijie Chen

This paper pioneers the introduction of nabla fractional calculus into distributed Nash equilibrium (NE) seeking for non-cooperative games (NGs), proposing several novel discrete-time fractional-order algorithms. We first develop a gradient play-base...

  • Article
  • Open Access
31 Citations
5,249 Views
16 Pages

24 June 2020

This study explored the formation mechanisms of users’ disclosing behaviors from the perspectives of the privacy paradox. The theoretical framework incorporates perceived control over personal information and subjective norms into the privacy c...

  • Article
  • Open Access
1 Citations
1,207 Views
16 Pages

To address the limitations of traditional tumor diagnostic methods in image feature extraction and model generalization, this study innovatively proposes a synergistic diagnostic model that integrates fractional Fourier transform (FrFT) and error bac...

  • Article
  • Open Access
4 Citations
2,696 Views
15 Pages

Next-generation networks are expected to handle a wide variety of internet of everything (IoE) services, notably including virtual reality (VR) for smart industrial-oriented applications. VR for industrial environments subtends strict quality of serv...

  • Article
  • Open Access
9 Citations
2,577 Views
11 Pages

1 January 2020

In this paper, the adaptive lasso method is used to screen variables, and different neural network models of seven countries are established by choosing variables. Gross domestic product (GDP) is a function of land area in the country, cultivated lan...

  • Article
  • Open Access
9 Citations
5,794 Views
18 Pages

Benefiting from recent advantages in location-aware technologies, movement data are becoming ubiquitous. Hence, numerous research topics with respect to movement data have been undertaken. Yet, the research of dynamic interactions in movement data is...

  • Article
  • Open Access
297 Views
37 Pages

This paper presents two enhanced variants of the Artificial Protozoa Optimizer (APO), namely the Adaptive Balanced Artificial Protozoa Optimizer (AB-APO) and the Fractional Calculus-Enhanced Artificial Protozoa Optimizer (FC-APO), for optimal multi-D...

  • Article
  • Open Access
114 Citations
4,349 Views
29 Pages

Global Mittag–Leffler Stability and Stabilization Analysis of Fractional-Order Quaternion-Valued Memristive Neural Networks

  • Grienggrai Rajchakit,
  • Pharunyou Chanthorn,
  • Pramet Kaewmesri,
  • Ramalingam Sriraman and
  • Chee Peng Lim

14 March 2020

This paper studies the global Mittag–Leffler stability and stabilization analysis of fractional-order quaternion-valued memristive neural networks (FOQVMNNs). The state feedback stabilizing control law is designed in order to stabilize the cons...

  • Article
  • Open Access
5 Citations
2,524 Views
14 Pages

26 December 2023

This research explores the application of the Riemann–Liouville fractional sigmoid, briefly RLFσ, activation function in modeling the chaotic dynamics of Chua’s circuit through Multilayer Perceptron (MLP) architecture. Grounded in t...

  • Article
  • Open Access
4 Citations
3,545 Views
13 Pages

20 May 2022

The Ultra-Reliable Low-Latency Communication (URLLC) is expected to be an important feature of 5G and beyond networks. Supporting URLLC in a resource-efficient manner demands optimal Modulation and Coding Scheme (MCS) selection and spectrum allocatio...

  • Article
  • Open Access
28 Citations
8,942 Views
26 Pages

A Novel Approach to Model a Gas Network

  • Ali Ekhtiari,
  • Ioannis Dassios,
  • Muyang Liu and
  • Eoin Syron

13 March 2019

The continuous uninterrupted supply of Natural Gas (NG) is crucial to today’s economy, with issues in key infrastructure, e.g., Baumgarten hub in Austria in 2017, highlighting the importance of the NG infrastructure for the supply of primary en...

  • Article
  • Open Access
135 Citations
23,152 Views
15 Pages

Classification of Covid-19 Coronavirus, Pneumonia and Healthy Lungs in CT Scans Using Q-Deformed Entropy and Deep Learning Features

  • Ali M. Hasan,
  • Mohammed M. AL-Jawad,
  • Hamid A. Jalab,
  • Hadil Shaiba,
  • Rabha W. Ibrahim and
  • Ala’a R. AL-Shamasneh

1 May 2020

Many health systems over the world have collapsed due to limited capacity and a dramatic increase of suspected COVID-19 cases. What has emerged is the need for finding an efficient, quick and accurate method to mitigate the overloading of radiologist...

  • Article
  • Open Access
18 Citations
2,759 Views
14 Pages

Complexity and Chimera States in a Network of Fractional-Order Laser Systems

  • Shaobo He,
  • Hayder Natiq,
  • Santo Banerjee and
  • Kehui Sun

20 February 2021

By applying the Adams-Bashforth-Moulton method (ABM), this paper explores the complexity and synchronization of a fractional-order laser dynamical model. The dynamics under the variance of derivative order q and parameters of the system have examined...

  • Article
  • Open Access
8 Citations
1,788 Views
21 Pages

OPT-FRAC-CHN: Optimal Fractional Continuous Hopfield Network

  • Karim El Moutaouakil,
  • Zakaria Bouhanch,
  • Abdellah Ahourag,
  • Ahmed Aberqi and
  • Touria Karite

18 July 2024

The continuous Hopfield network (CHN) is a common recurrent neural network. The CHN tool can be used to solve a number of ranking and optimization problems, where the equilibrium states of the ordinary differential equation (ODE) related to the CHN g...

  • Article
  • Open Access
8 Citations
6,122 Views
18 Pages

Assessment of the Diagnostic Accuracy of Artificial Intelligence Software in Identifying Common Periodontal and Restorative Dental Conditions (Marginal Bone Loss, Periapical Lesion, Crown, Restoration, Dental Caries) in Intraoral Periapical Radiographs

  • Wael I. Ibraheem,
  • Saurabh Jain,
  • Mohammed Naji Ayoub,
  • Mohammed Ahmed Namazi,
  • Amjad Ismail Alfaqih,
  • Aparna Aggarwal,
  • Abdullah A. Meshni,
  • Ammar Almarghlani and
  • Abdulkareem Abdullah Alhumaidan

Objectives: The purpose of the study is to evaluate the diagnostic accuracy of artificial intelligence (AI) software in detecting a common set of periodontal and restorative conditions, including marginal bone loss, dental caries, periapical lesions,...

  • Article
  • Open Access
2 Citations
808 Views
17 Pages

This paper addresses the synchronization problem in complex networks characterized by short-memory fractional dynamics and directed higher-order interactions. Sufficient conditions for global synchronization are rigorously derived using Lyapunov-base...

  • Article
  • Open Access
890 Views
28 Pages

Channel Model for Estimating Received Power Variations at a Mobile Terminal in a Cellular Network

  • Kevin Verdezoto Moreno,
  • Pablo Lupera-Morillo,
  • Roberto Chiguano,
  • Robin Álvarez,
  • Ricardo Llugsi and
  • Gabriel Palma

This paper introduces a theoretical large-scale radio channel model for the downlink in cellular systems, aimed at estimating variations in received signal power at the user terminal as a function of device mobility. This enables applications such as...

  • Article
  • Open Access
20 Citations
5,674 Views
12 Pages

Entropy Analysis of a Railway Network’s Complexity

  • Duarte Valério,
  • António M. Lopes and
  • José A. Tenreiro Machado

31 October 2016

Railway networks are among the many physical systems that reveal a fractal structure. This paper studies the Portuguese railway system, and analyzes how it evolved over time, namely what concerns the structure of its different levels, and its distrib...

  • Article
  • Open Access
7 Citations
3,106 Views
17 Pages

A Neural Controller for Induction Motors: Fractional-Order Stability Analysis and Online Learning Algorithm

  • Mohammad Hosein Sabzalian,
  • Khalid A. Alattas,
  • Fayez F. M. El-Sousy,
  • Ardashir Mohammadzadeh,
  • Saleh Mobayen,
  • Mai The Vu and
  • Mauricio Aredes

21 March 2022

In this study, an intelligent control scheme is developed for induction motors (IMs). The dynamics of IMs are unknown and are perturbed by the variation of rotor resistance and load changes. The control system has two stages. In the identification st...

  • Article
  • Open Access
8 Citations
2,307 Views
23 Pages

19 December 2022

This paper is dedicated to the asymptotic stability and synchronization for a type of fractional complex-valued inertial neural network by developing a direct analysis method. First, a new fractional differential inequality is presented for nonnegati...

  • Article
  • Open Access
373 Views
29 Pages

Multi-Objective Optimization and Load-Flow Analysis in Complex Power Distribution Networks

  • Tariq Ali,
  • Muhammad Ayaz,
  • Husam S. Samkari,
  • Mohammad Hijji,
  • Mohammed F. Allehyani and
  • El-Hadi M. Aggoune

Modern power distribution networks are increasingly challenged with nonlinear operating conditions, the high penetration of distributed energy resources, and conflicting operational objectives such as loss minimization and voltage regulation. Existin...

  • Article
  • Open Access
8 Citations
3,398 Views
22 Pages

24 October 2018

With the rapid development of smart grid technologies, communication systems are further integrated in the existing power grids. The real-time capability and reliability of the power applications are receiving increasing concerns. Thus, it is importa...

  • Perspective
  • Open Access
8 Citations
4,345 Views
33 Pages

This is the third essay advocating the use the (non-integer) fractional calculus (FC) to capture the dynamics of complex networks in the twilight of the Newtonian era. Herein, the focus is on drawing a distinction between networks described by monfra...

  • Article
  • Open Access
15 Citations
2,016 Views
14 Pages

Finite Time Stability Results for Neural Networks Described by Variable-Order Fractional Difference Equations

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

Variable-order fractional discrete calculus is a new and unexplored part of calculus that provides extraordinary capabilities for simulating multidisciplinary processes. Recognizing this incredible potential, the scientific community has been researc...

  • Article
  • Open Access
12 Citations
3,786 Views
21 Pages

15 September 2022

In this paper, fractional calculus principles are considered to implement fractional derivative gradient optimizers for the Tensorflow backend. The performance of these fractional derivative optimizers is compared with that of other well-known ones....

  • Article
  • Open Access
6 Citations
1,526 Views
29 Pages

14 February 2024

Quantum calculus can provide new insights into the nonlinear behaviour of functions and equations, addressing problems that may be difficult to tackle by classical calculus due to high nonlinearity. Iterative methods for solving nonlinear equations c...

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