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228 Results Found

  • Article
  • Open Access
48 Citations
6,280 Views
17 Pages

24 January 2021

Early identification of degenerative processes in the human brain is considered essential for providing proper care and treatment. This may involve detecting structural and functional cerebral changes such as changes in the degree of asymmetry betwee...

  • Article
  • Open Access
4 Citations
836 Views
24 Pages

2 August 2025

Understanding vehicle emissions is essential for developing effective carbon reduction strategies in the transport sector. Conventional emission models often assume homogeneity and linearity, overlooking real-world asymmetries that arise from variati...

  • Review
  • Open Access
69 Citations
9,571 Views
24 Pages

A Review on Additive Manufacturing Possibilities for Electrical Machines

  • Muhammad Usman Naseer,
  • Ants Kallaste,
  • Bilal Asad,
  • Toomas Vaimann and
  • Anton Rassõlkin

31 March 2021

This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density,...

  • Article
  • Open Access
4 Citations
3,646 Views
20 Pages

Analysis of the Asymmetry between Both Eyes in Early Diagnosis of Glaucoma Combining Features Extracted from Retinal Images and OCTs into Classification Models

  • Francisco Rodríguez-Robles,
  • Rafael Verdú-Monedero,
  • Rafael Berenguer-Vidal,
  • Juan Morales-Sánchez and
  • Inmaculada Sellés-Navarro

14 May 2023

This study aims to analyze the asymmetry between both eyes of the same patient for the early diagnosis of glaucoma. Two imaging modalities, retinal fundus images and optical coherence tomographies (OCTs), have been considered in order to compare thei...

  • Article
  • Open Access
4 Citations
1,986 Views
21 Pages

14 September 2023

This paper analyzes the performance of Kalman filter-based estimators for robust filtering and rotor asymmetry detection in wound rotor induction machines (WRIMs) using real-time data. Filter models were designed based on an extended model of WRIMs....

  • Article
  • Open Access
1,648 Views
25 Pages

Methodology for Designing Vibration Devices with Asymmetric Oscillations and a Given Value of the Asymmetry of the Driving Force

  • Mihail D. Gerasimov,
  • Nickolai S. Lubimyi,
  • Andrey A. Polshin,
  • Boris S. Chetverikov and
  • Anastasia Chetverikova

In mechanical engineering, the building industry, and many other branches of industry, vibration machines are widely used, in which circular and directed oscillations predominate in the form of movement of the working equipment. This article examines...

  • Article
  • Open Access
1,237 Views
32 Pages

29 October 2025

This paper investigates the role of symmetry and asymmetry in the learning process of modern machine learning models, with a specific focus on feature representation and optimization. We introduce a novel symmetry-aware learning framework that identi...

  • Article
  • Open Access
3 Citations
2,804 Views
25 Pages

Winding Tensor Approach for the Analytical Computation of the Inductance Matrix in Eccentric Induction Machines

  • Javier Martinez-Roman,
  • Ruben Puche-Panadero,
  • Angel Sapena-Bano,
  • Manuel Pineda-Sanchez,
  • Juan Perez-Cruz and
  • Martin Riera-Guasp

28 May 2020

Induction machines (IMs) are critical components of many industrial processes, what justifies the use of condition-based maintenance (CBM) systems for detecting their faults at an early stage, in order to avoid costly breakdowns of production lines....

  • Article
  • Open Access
1 Citations
940 Views
21 Pages

High-Speed Videoendoscopy and Stiffness Mapping for AI-Assisted Glottic Lesion Differentiation

  • Magdalena M. Pietrzak,
  • Justyna Kałuża-Olszewska,
  • Ewa Niebudek-Bogusz,
  • Artur Klepaczko and
  • Wioletta Pietruszewska

21 April 2025

Objectives: This study evaluates the potential of high-speed videoendoscopy (HSV) in differentiating between benign and malignant glottic lesions, offering a non-invasive diagnostic tool for clinicians. Moreover, a new parameter derived from high-spe...

  • Review
  • Open Access
10 Citations
5,126 Views
21 Pages

Automatic Facial Palsy Detection—From Mathematical Modeling to Deep Learning

  • Eleni Vrochidou,
  • Vladan Papić,
  • Theofanis Kalampokas and
  • George A. Papakostas

28 November 2023

Automated solutions for medical diagnosis based on computer vision form an emerging field of science aiming to enhance diagnosis and early disease detection. The detection and quantification of facial asymmetries enable facial palsy evaluation. In th...

  • Article
  • Open Access
22 Citations
8,277 Views
12 Pages

Two-Dimensional Image-Based Screening Tool for Infants with Positional Cranial Deformities: A Machine Learning Approach

  • Cecilia A. Callejas Pastor,
  • Il-Young Jung,
  • Shinhye Seo,
  • Soon Bin Kwon,
  • Yunseo Ku and
  • Jayoung Choi

Positional cranial deformities are relatively common conditions, characterized by asymmetry and changes in skull shape. Although three-dimensional (3D) scanning is the gold standard for diagnosing such deformities, it requires expensive laser scanner...

  • Article
  • Open Access
7 Citations
3,000 Views
18 Pages

28 May 2021

Multi-phase motors and generators are regarded with great fault tolerance capability, especially on open-circuit faults. Various mathematics analytical methods are applied for their fault control. In this paper, a fault-tolerant control strategy with...

  • Article
  • Open Access
4 Citations
6,488 Views
19 Pages

Symmetry Extraction in High Sensitivity Melanoma Diagnosis

  • Elyoenai Guerra-Segura,
  • Carlos M. Travieso-González,
  • Jesús B. Alonso-Hernández,
  • Antonio G. Ravelo-García and
  • Gregorio Carretero

15 June 2015

Melanoma diagnosis depends on the experience of doctors. Symmetry is one of the most important factors to measure, since asymmetry shows an uncontrolled growth of cells, leading to melanoma cancer. A system for melanoma detection in diagnosing melano...

  • Article
  • Open Access
6 Citations
2,660 Views
19 Pages

This paper deals with the winding arrangement of multi-phase fractional-slot permanent magnet (PM) synchronous machines (FSPMSMs), with emphasis on the enhancement of their open-circuit fault-tolerance capability. FSPMSMs are reputed by their attract...

  • Article
  • Open Access
2 Citations
2,619 Views
12 Pages

An Intelligent Based Symmetrical Classification of Online Shop Selling Counterfeit Products

  • Shyh-Wei Chen,
  • Po-Hsiang Chen,
  • Ching-Tsorng Tsai and
  • Chia-Hui Liu

13 October 2022

In recent years, the social network has become popular and people have started trading transactions on the Internet. Many counterfeit websites have begun to appear which create websites with counterfeit products or use the digital advertiser’s...

  • Article
  • Open Access
10 Citations
8,146 Views
12 Pages

Electromyographic Analysis of Paraspinal Muscles of Scoliosis Patients Using Machine Learning Approaches

  • Ruixin Liang,
  • Joanne Yip,
  • Yunli Fan,
  • Jason P. Y. Cheung and
  • Kai-Tsun Michael To

A large number of studies have used electromyography (EMG) to measure the paraspinal muscle activity of adolescents with idiopathic scoliosis. However, investigations on the features of these muscles are very limited even though the information is us...

  • Article
  • Open Access
2 Citations
8,017 Views
26 Pages

Sleep Stage Classification Through HRV, Complexity Measures, and Heart Rate Asymmetry Using Generalized Estimating Equations Models

  • Bartosz Biczuk,
  • Sebastian Żurek,
  • Szymon Jurga,
  • Elżbieta Turska,
  • Przemysław Guzik and
  • Jarosław Piskorski

16 December 2024

This study investigates whether heart rate asymmetry (HRA) parameters offer insights into sleep stages beyond those provided by conventional heart rate variability (HRV) and complexity measures. Utilizing 31 polysomnographic recordings, we focused ex...

  • Article
  • Open Access
4 Citations
3,530 Views
20 Pages

2 February 2024

Behavioural asymmetries displayed by individuals, such as hand preference and foot preference, tend to be lateralized in the same direction (left or right). This may be because their co-ordination conveys functional benefits for a variety of motor be...

  • Article
  • Open Access
5 Citations
2,797 Views
16 Pages

Cost-Effective Reduced Envelope of the Stator Current via Synchronous Sampling for the Diagnosis of Rotor Asymmetries in Induction Machines Working at Very Low Slip

  • Jordi Burriel-Valencia,
  • Ruben Puche-Panadero,
  • Javier Martinez-Roman,
  • Angel Sapena-Bano and
  • Manuel Pineda-Sanchez

8 August 2019

Fault diagnosis of rotor asymmetries of induction machines (IMs) using the stator current relies on the detection of the characteristic signatures of the fault harmonics in the current spectrum. In some scenarios, such as large induction machines run...

  • Article
  • Open Access
762 Views
40 Pages

Modified Soft Margin Optimal Hyperplane Algorithm for Support Vector Machines Applied to Fault Patterns and Disease Diagnosis

  • Mario Antonio Ruz Canul,
  • Jose A. Ruz-Hernandez,
  • Alma Y. Alanis,
  • Juan Carlos Gonzalez Gomez and
  • Jorge Gálvez

16 October 2025

This paper introduces a modified soft margin optimal hyperplane (MSMOH) algorithm, which enhances the linear separating properties of support vector machines (SVMs) by placing higher penalties on large misclassification errors. This approach improves...

  • Article
  • Open Access
4 Citations
1,988 Views
20 Pages

14 October 2022

Complex products with a tree-like structure usually have an asymmetric structure. Therefore, in order to avoid the separation of equipment and operation correlation during the scheduling, the structural attributes of products and the use of equipment...

  • Article
  • Open Access
1 Citations
2,468 Views
20 Pages

4 November 2022

The network traffic prediction (NTP) model can help operators predict, adjust, and control network usage more accurately. Meanwhile, it also reduces network congestion and improves the quality of the user service experience. However, the characterist...

  • Article
  • Open Access
8 Citations
7,137 Views
16 Pages

Fully Automated Measurement of Cobb Angles in Coronal Plane Spine Radiographs

  • Kenneth Chen,
  • Christoph Stotter,
  • Thomas Klestil,
  • Jennyfer A. Mitterer,
  • Christopher Lepenik and
  • Stefan Nehrer

15 July 2024

Background/Objectives: scoliosis is a three-dimensional structural deformity characterized by lateral and rotational curvature of the spine. The current gold-standard method to assess scoliosis is the measurement of lateral curvature of the spine usi...

  • Article
  • Open Access
2 Citations
2,329 Views
20 Pages

16 August 2022

A high-quality annotated text corpus is vital when training a deep learning model. However, it is insurmountable to acquire absolute abundant label-balanced data because of the huge labor and time costs needed in the labeling stage. To alleviate this...

  • Article
  • Open Access
14 Citations
4,481 Views
26 Pages

2 October 2022

Existing facial expression recognition methods have some drawbacks. For example, it becomes difficult for network learning on cross-dataset facial expressions, multi-region learning on an image did not extract the overall image information, and a fre...

  • Article
  • Open Access
11 Citations
4,277 Views
19 Pages

A Text Classification Model via Multi-Level Semantic Features

  • Keji Mao,
  • Jinyu Xu,
  • Xingda Yao,
  • Jiefan Qiu,
  • Kaikai Chi and
  • Guanglin Dai

17 September 2022

Text classification is a major task of NLP (Natural Language Processing) and has been the focus of attention for years. News classification as a branch of text classification is characterized by complex structure, large amounts of information and lon...

  • Article
  • Open Access
10 Citations
3,010 Views
22 Pages

2 February 2023

Drug-drug interaction (DDI) extraction has seen growing usage of deep models, but their effectiveness has been restrained by limited domain-labeled data, a weak representation of co-occurring entities, and poor adaptation of downstream tasks. This pa...

  • Article
  • Open Access
12 Citations
7,964 Views
22 Pages

Anchoring and Asymmetric Information in the Real Estate Market: A Machine Learning Approach

  • Ka Shing Cheung,
  • Julian TszKin Chan,
  • Sijie Li and
  • Chung Yim Yiu

Conventional wisdom suggests that non-local buyers usually pay a premium for home purchases. While the standard contract theory predicts that non-local buyers may pay such a price premium because of the higher cost of gathering information, behaviora...

  • Article
  • Open Access
16 Citations
3,099 Views
30 Pages

Analytical Model of Induction Machines with Multiple Cage Faults Using the Winding Tensor Approach

  • Javier Martinez-Roman,
  • Ruben Puche-Panadero,
  • Angel Sapena-Bano,
  • Carla Terron-Santiago,
  • Jordi Burriel-Valencia and
  • Manuel Pineda-Sanchez

27 July 2021

Induction machines (IMs) are one of the main sources of mechanical power in many industrial processes, especially squirrel cage IMs (SCIMs), due to their robustness and reliability. Their sudden stoppage due to undetected faults may cause costly prod...

  • Article
  • Open Access
6 Citations
2,213 Views
22 Pages

8 June 2023

To extract facial features with different receptive fields and improve the decision fusion performance of network ensemble, a symmetric multi-scale residual network (SMResNet) ensemble with a weighted evidence fusion (WEF) strategy for facial express...

  • Article
  • Open Access
2,551 Views
16 Pages

27 March 2023

Knowledge reduction is a crucial topic in formal concept analysis. There always exists uncertain, symmetric linguistic-evaluation information in social life, which leads to high complexity in the process of knowledge representation. In order to overc...

  • Article
  • Open Access
12 Citations
3,760 Views
19 Pages

Selection of the Minimum Number of EEG Sensors to Guarantee Biometric Identification of Individuals

  • Jordan Ortega-Rodríguez,
  • José Francisco Gómez-González and
  • Ernesto Pereda

24 April 2023

Biometric identification uses person recognition techniques based on the extraction of some of their physical or biological properties, which make it possible to characterize and differentiate one person from another and provide irreplaceable and cri...

  • Article
  • Open Access
11 Citations
2,943 Views
17 Pages

Decision Trees for Glaucoma Screening Based on the Asymmetry of the Retinal Nerve Fiber Layer in Optical Coherence Tomography

  • Rafael Berenguer-Vidal,
  • Rafael Verdú-Monedero,
  • Juan Morales-Sánchez,
  • Inmaculada Sellés-Navarro,
  • Oleksandr Kovalyk and
  • José-Luis Sancho-Gómez

27 June 2022

Purpose: The aim of this study was to analyze the relevance of asymmetry features between both eyes of the same patient for glaucoma screening using optical coherence tomography. Methods: Spectral-domain optical coherence tomography was used to estim...

  • Article
  • Open Access
2 Citations
1,867 Views
18 Pages

29 November 2021

In this paper, the evolutions of cutting force, cutting temperature, and surface roughness, and the corresponding machinability in asymmetric up-milling of TC25 alloy are investigated. The results indicated that radial depth of cut generated opposite...

  • Feature Paper
  • Article
  • Open Access
6 Citations
5,081 Views
17 Pages

Symmetry and Asymmetry in the Fluid Mechanical Sewing Machine

  • Neil M. Ribe,
  • Pierre-Thomas Brun and
  • Basile Audoly

8 April 2022

The ‘fluid mechanical sewing machine’ is a device in which a thin thread of viscous fluid falls onto a horizontal belt moving in its own plane, creating a rich variety of ‘stitch’ patterns depending on the fall height and the...

  • Article
  • Open Access
3 Citations
3,906 Views
13 Pages

A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design

  • Massimo Caruso,
  • Antonino Oscar Di Tommaso,
  • Fabrizio Marignetti and
  • Rosario Miceli

16 October 2020

This work provides an investigation based on a fast estimation of the degree of unbalance (D.U.%) and the differential leakage factor (σ0) of multiphase electrical machine windings. This analysis is carried out by exploring almost 5000 combinat...

  • Article
  • Open Access
101 Citations
10,914 Views
15 Pages

EEG Based Classification of Long-Term Stress Using Psychological Labeling

  • Sanay Muhammad Umar Saeed,
  • Syed Muhammad Anwar,
  • Humaira Khalid,
  • Muhammad Majid and
  • Ulas Bagci

29 March 2020

Stress research is a rapidly emerging area in the field of electroencephalography (EEG) signal processing. The use of EEG as an objective measure for cost effective and personalized stress management becomes important in situations like the nonavaila...

  • Article
  • Open Access
3 Citations
5,753 Views
15 Pages

Analyzing Facial Asymmetry in Alzheimer’s Dementia Using Image-Based Technology

  • Ching-Fang Chien,
  • Jia-Li Sung,
  • Chung-Pang Wang,
  • Chen-Wen Yen and
  • Yuan-Han Yang

Several studies have demonstrated accelerated brain aging in Alzheimer’s dementia (AD). Previous studies have also reported that facial asymmetry increases with age. Because obtaining facial images is much easier than obtaining brain images, th...

  • Article
  • Open Access
2,577 Views
19 Pages

8 January 2025

(1) Background: This study examines the association between asymmetrical movements of an assembly line and machining workers and their overall well-being. The primary aim is to quantify the extent to which asymmetrical movements serve as predictors o...

  • Article
  • Open Access
2 Citations
1,864 Views
16 Pages

12 December 2023

Ground-glass nodules (GGN) are the main manifestation of early lung cancer, and accurate and efficient identification of ground-glass pulmonary nodules is of great significance for the treatment of lung diseases. In response to the problem of traditi...

  • Letter
  • Open Access
54 Citations
7,055 Views
12 Pages

Deep-Asymmetry: Asymmetry Matrix Image for Deep Learning Method in Pre-Screening Depression

  • Min Kang,
  • Hyunjin Kwon,
  • Jin-Hyeok Park,
  • Seokhwan Kang and
  • Youngho Lee

15 November 2020

To have an objective depression diagnosis, numerous studies based on machine learning and deep learning using electroencephalogram (EEG) have been conducted. Most studies depend on one-dimensional raw data and required fine feature extraction. To sol...

  • Article
  • Open Access
1,042 Views
17 Pages

30 July 2025

Given the high neuromechanical demands and frequent asymmetries in badminton, this study investigated the impact of a four-week asymmetry-targeted intervention on single-leg hop performance in elite junior badminton players and examined whether asymm...

  • Article
  • Open Access
1 Citations
838 Views
14 Pages

11 March 2025

Gun drills are widely utilized for deep hole machining due to their high aspect ratio, low stability, and susceptibility to vibrations, which can adversely affect machining accuracy and efficiency. During the machining process, cutting fluid must be...

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

A Network Intrusion Detection Method Based on Bagging Ensemble

  • Zichen Zhang,
  • Shanshan Kong,
  • Tianyun Xiao and
  • Aimin Yang

5 July 2024

The problems of asymmetry in information features and redundant features in datasets, and the asymmetry of network traffic distribution in the field of network intrusion detection, have been identified as a cause of low accuracy and poor generalizati...

  • Article
  • Open Access
1,453 Views
23 Pages

Addressing the Information Asymmetry of Fake News Detection Using Large Language Models and Emotion Embeddings

  • Kirishnni Prabagar,
  • Kogul Srikandabala,
  • Nilaan Loganathan,
  • Shalinka Jayatilleke,
  • Gihan Gamage and
  • Daswin De Silva

11 August 2025

Fake news generation and propagation occurs in large volumes, at high speed, in diverse formats, while also being short-lived to evade detection and counteraction. Despite its role as an enabler, Artificial Intelligence (AI) has been effective at fak...

  • Article
  • Open Access
128 Views
24 Pages

Quantum Dot Thermal Machines—A Guide to Engineering

  • Eugenia Pyurbeeva and
  • Ronnie Kosloff

19 December 2025

Continuous particle exchange thermal machines require no time-dependent driving, can be realised in solid-state electronic devices, and can be miniaturised to nanometre scale. Quantum dots, providing a narrow energy filter and allowing to manipulate...

  • Article
  • Open Access
27 Citations
5,472 Views
17 Pages

Compared with traditional alloys, high-entropy alloys have better mechanical properties and corrosion resistance. However, their mechanical properties and microstructural evolution behavior are unclear due to their complex composition. Machine learni...

  • Article
  • Open Access
6 Citations
3,165 Views
21 Pages

25 January 2025

The class imbalance problem presents a critical challenge in real-world applications, particularly in high-stakes domains such as healthcare, finance, disaster management, and fault diagnosis, where accurate anomaly detection is paramount. Class imba...

  • Article
  • Open Access
541 Views
14 Pages

Are Countermovement Jump Variables Indicators of Injury Risk in Professional Soccer Players? A Machine Learning Approach

  • Jorge Pérez-Contreras,
  • Rodrigo Villaseca-Vicuña,
  • Juan Francisco Loro-Ferrer,
  • Felipe Inostroza-Ríos,
  • Ciro José Brito,
  • Hugo Cerda-Kohler,
  • Alejandro Bustamante-Garrido,
  • Fernando Muñoz-Hinrichsen,
  • Felipe Hermosilla-Palma and
  • David Ulloa-Díaz
  • + 2 authors

1 December 2025

Background: Muscle injuries are among the main problems in professional soccer, affecting player availability and team performance. Countermovement jump (CMJ) variables have been proposed as indicators of injury risk and for detecting strength imbala...

  • Article
  • Open Access
7 Citations
2,351 Views
9 Pages

This paper proposes a novel interior permanent magnet (IPM) machine with asymmetrical PM configuration. Different from the traditional IPM counterparts, the proposed machine can perform a magnet axis shifted (MAS) effect. The magnet axis is shifted t...

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