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554 Results Found

  • Article
  • Open Access
16 Citations
4,580 Views
22 Pages

21 September 2021

Human activity recognition is an extensively researched topic in the last decade. Recent methods employ supervised and unsupervised deep learning techniques in which spatial and temporal dependency is modeled. This paper proposes a novel approach for...

  • Article
  • Open Access
5 Citations
3,263 Views
10 Pages

27 December 2022

In domains that have complex data characteristics and/or noisy data, any single supervised learning algorithm tends to suffer from overfitting. One way to mitigate this problem is to combine unsupervised learning component as a front end of the main...

  • Article
  • Open Access
7 Citations
5,549 Views
17 Pages

Insider threats are one of the most costly and difficult types of attacks to detect due to the fact that insiders have the right to access an organization’s network systems and understand its structure and security procedures, making it difficu...

  • Article
  • Open Access
24 Citations
4,305 Views
11 Pages

29 September 2022

Artificial-intelligence-based algorithms are used in manufacturing to automate difficult activities and discover workflow or process patterns that had never been noticed before. Recent studies deal with the forecasting of the fracture location in dis...

  • Article
  • Open Access
5 Citations
5,683 Views
23 Pages

QUEST: Eliminating Online Supervised Learning for Efficient Classification Algorithms

  • Ardjan Zwartjes,
  • Paul J. M. Havinga,
  • Gerard J. M. Smit and
  • Johann L. Hurink

1 October 2016

In this work, we introduce QUEST (QUantile Estimation after Supervised Training), an adaptive classification algorithm for Wireless Sensor Networks (WSNs) that eliminates the necessity for online supervised learning. Online processing is important fo...

  • Review
  • Open Access
246 Citations
26,915 Views
21 Pages

22 April 2023

Recently, various sophisticated methods, including machine learning and artificial intelligence, have been employed to examine health-related data. Medical professionals are acquiring enhanced diagnostic and treatment abilities by utilizing machine l...

  • Article
  • Open Access
1 Citations
435 Views
20 Pages

14 October 2025

To address the decision-making requirements for drainage gas recovery in horizontal gas wells within low-permeability tight reservoirs, this study proposes an intelligent classification approach that integrates supervised and unsupervised learning te...

  • Article
  • Open Access
14 Citations
4,703 Views
16 Pages

5 December 2019

Tomographic synthetic aperture radar (TomoSAR) produces 3-D point clouds with unavoidable noise or false targets that seriously deteriorate the quality of 3-D images and the building reconstruction over urban areas. In this paper, a Hough transform w...

  • Article
  • Open Access
11 Citations
3,503 Views
21 Pages

24 February 2024

The distributed denial of service (DDoS) attack is one of the most pernicious threats in cyberspace. Catastrophic failures over the past two decades have resulted in catastrophic and costly disruption of services across all sectors and critical infra...

  • Article
  • Open Access
1 Citations
2,087 Views
17 Pages

Compared to other identity verification systems applications, vein patterns have the lowest potential for being used fraudulently. The present research examines the practicability of gathering vascular data from NIR images of veins. In this study, we...

  • Article
  • Open Access
24 Citations
3,379 Views
14 Pages

30 May 2022

With the increasing demand for electronic products, the electronic package gradually developed toward miniaturization and high density. The most significant advantage of the Wafer-Level Package (WLP) is that it can effectively reduce the volume and f...

  • Article
  • Open Access
79 Citations
9,510 Views
25 Pages

22 March 2016

This study presents a novel approach for unsupervised change detection in multitemporal remotely sensed images. This method addresses the problem of the analysis of the difference image by proposing a novel and robust semi-supervised fuzzy C-means (R...

  • Review
  • Open Access
3 Citations
3,815 Views
13 Pages

24 May 2024

Crystallization plays a crucial role in defining the quality and functionality of products across various industries, including pharmaceutical, food and beverage, and chemical manufacturing. The process’s efficiency and outcome are significantl...

  • Article
  • Open Access
18 Citations
4,957 Views
16 Pages

Segmentation Approaches for Diabetic Foot Disorders

  • Natalia Arteaga-Marrero,
  • Abián Hernández,
  • Enrique Villa,
  • Sara González-Pérez,
  • Carlos Luque and
  • Juan Ruiz-Alzola

30 January 2021

Thermography enables non-invasive, accessible, and easily repeated foot temperature measurements for diabetic patients, promoting early detection and regular monitoring protocols, that limit the incidence of disabling conditions associated with diabe...

  • Systematic Review
  • Open Access
43 Citations
5,663 Views
21 Pages

Machine Learning Applications in Renewable Energy (MLARE) Research: A Publication Trend and Bibliometric Analysis Study (2012–2021)

  • Samuel-Soma M. Ajibade,
  • Festus Victor Bekun,
  • Festus Fatai Adedoyin,
  • Bright Akwasi Gyamfi and
  • Anthonia Oluwatosin Adediran

This study examines the research climate on machine learning applications in renewable energy (MLARE). Therefore, the publication trends (PT) and bibliometric analysis (BA) on MLARE research published and indexed in the Elsevier Scopus database betwe...

  • Article
  • Open Access
19 Citations
3,815 Views
14 Pages

Olive Oils Classification via Laser-Induced Breakdown Spectroscopy

  • Nikolaos Gyftokostas,
  • Dimitrios Stefas and
  • Stelios Couris

17 May 2020

The classification of olive oils and the authentication of their geographic origin are important issues for public health and for the olive oil market and related industry. The development of fast, easy to use, suitable for on-line, in-situ and remot...

  • Article
  • Open Access
13 Citations
5,408 Views
24 Pages

15 April 2022

Decision support systems with machine learning can help organizations improve operations and lower costs with more precision and efficiency. This work presents a review of state-of-the-art machine learning algorithms for binary classification and mak...

  • Article
  • Open Access
6 Citations
2,154 Views
19 Pages

Multi-Objective Unsupervised Feature Selection and Cluster Based on Symbiotic Organism Search

  • Abbas Fadhil Jasim AL-Gburi,
  • Mohd Zakree Ahmad Nazri,
  • Mohd Ridzwan Bin Yaakub and
  • Zaid Abdi Alkareem Alyasseri

14 August 2024

Unsupervised learning is a type of machine learning that learns from data without human supervision. Unsupervised feature selection (UFS) is crucial in data analytics, which plays a vital role in enhancing the quality of results and reducing computat...

  • Article
  • Open Access
13 Citations
4,780 Views
12 Pages

29 August 2021

Clustering is an unsupervised machine learning method with many practical applications that has gathered extensive research interest. It is a technique of dividing data elements into clusters such that elements in the same cluster are similar. Cluste...

  • Review
  • Open Access
45 Citations
6,972 Views
24 Pages

7 February 2023

In a physical microgrid system, equipment failures, manual misbehavior of equipment, and power quality can be affected by intentional cyberattacks, made more dangerous by the widespread use of established communication networks via sensors. This pape...

  • Review
  • Open Access
7 Citations
7,827 Views
42 Pages

20 June 2025

In the realm of critical infrastructure protection, robust intrusion detection systems (IDSs) are essential for securing essential services. This paper investigates the efficacy of various machine learning algorithms for anomaly detection within crit...

  • Article
  • Open Access
9 Citations
2,001 Views
20 Pages

Application and Comparison of Machine Learning Methods for Mud Shale Petrographic Identification

  • Ruhao Liu,
  • Lei Zhang,
  • Xinrui Wang,
  • Xuejuan Zhang,
  • Xingzhou Liu,
  • Xin He,
  • Xiaoming Zhao,
  • Dianshi Xiao and
  • Zheng Cao

7 July 2023

Machine learning is the main technical means for lithofacies logging identification. As the main target of shale oil spatial distribution prediction, mud shale petrography is subjected to the constraints of stratigraphic inhomogeneity and logging inf...

  • Article
  • Open Access
2 Citations
1,463 Views
24 Pages

11 May 2024

Supervised discretisation is widely considered as far more advantageous than unsupervised transformation of attributes, because it helps to preserve the informative content of a variable, which is useful in classification. After discretisation, based...

  • Article
  • Open Access
3 Citations
1,109 Views
17 Pages

21 December 2024

Real-time condition monitoring of machinery is increasingly being adopted to minimize costs and enhance operational efficiency. By leveraging large-scale data acquisition and intelligent algorithms, failures can be detected and predicted, thereby red...

  • Article
  • Open Access
8 Citations
2,396 Views
22 Pages

Lithofacies Identification from Wire-Line Logs Using an Unsupervised Data Clustering Algorithm

  • Md Monjur Ul Hasan,
  • Tanzeer Hasan,
  • Reza Shahidi,
  • Lesley James,
  • Dennis Peters and
  • Ray Gosine

17 December 2023

Stratigraphic identification from wire-line logs and core samples is a common method for lithology classification. This traditional approach is considered superior, despite its significant financial cost. Artificial neural networks and machine learni...

  • Article
  • Open Access
10 Citations
3,533 Views
23 Pages

Deep Temporal Iterative Clustering for Satellite Image Time Series Land Cover Analysis

  • Wenqi Guo,
  • Weixiong Zhang,
  • Zheng Zhang,
  • Ping Tang and
  • Shichen Gao

29 July 2022

The extensive amount of Satellite Image Time Series (SITS) data brings new opportunities and challenges for land cover analysis. Many supervised machine learning methods have been applied in SITS, but the labeled SITS samples are time- and effort-con...

  • Article
  • Open Access
15 Citations
4,604 Views
11 Pages

Memristor Neural Network Training with Clock Synchronous Neuromorphic System

  • Sumin Jo,
  • Wookyung Sun,
  • Bokyung Kim,
  • Sunhee Kim,
  • Junhee Park and
  • Hyungsoon Shin

Memristor devices are considered to have the potential to implement unsupervised learning, especially spike timing-dependent plasticity (STDP), in the field of neuromorphic hardware research. In this study, a neuromorphic hardware system for multilay...

  • Article
  • Open Access
2 Citations
2,969 Views
11 Pages

13 November 2024

Pre-impact fall detection during e-scooter riding is essential for rider safety. Both threshold-based and deep learning algorithms (supervised and unsupervised models) were developed in this study. Twenty participants performed normal driving maneuve...

  • Article
  • Open Access
7 Citations
2,698 Views
12 Pages

22 December 2023

A crucial area of study in data mining is outlier detection, particularly in the areas of network security, credit card fraud detection, industrial flaw detection, etc. Existing outlier detection algorithms, which can be divided into supervised metho...

  • Article
  • Open Access
1 Citations
2,558 Views
19 Pages

10 January 2025

Automatic first-break(FB) picking is a key task in seismic data processing, with numerous applications in the field. Over the past few years, both unsupervised and supervised learning algorithms have been applied to 2D seismic arrival time picking an...

  • Article
  • Open Access
2 Citations
2,485 Views
14 Pages

26 March 2025

This paper proposes a novel hybrid approach that combines unsupervised feature extraction through clustering and unsupervised feature selection for data reduction, specifically targeting high-dimensional data. The proposed method employs K-means clus...

  • Article
  • Open Access
3 Citations
2,271 Views
9 Pages

An Improved Clustering Algorithm for Multi-Density Data

  • Abdulwahab Ali Almazroi and
  • Walid Atwa

18 August 2022

The clustering method divides a dataset into groups with similar data using similarity metrics. However, discovering clusters in different densities, shapes and distinct sizes is still a challenging task. In this regard, experts and researchers opt t...

  • Article
  • Open Access
7 Citations
2,683 Views
15 Pages

Classifying Facies in 3D Digital Rock Images Using Supervised and Unsupervised Approaches

  • Cenk Temizel,
  • Uchenna Odi,
  • Karthik Balaji,
  • Hakki Aydin and
  • Javier E. Santos

17 October 2022

Lithology is one of the critical parameters influencing drilling operations and reservoir production behavior. Well completion is another important area where facies type has a crucial influence on fracture propagation. Geological formations are high...

  • Article
  • Open Access
13 Citations
5,548 Views
27 Pages

Unsupervised Parameterization for Optimal Segmentation of Agricultural Parcels from Satellite Images in Different Agricultural Landscapes

  • Gideon Okpoti Tetteh,
  • Alexander Gocht,
  • Marcel Schwieder,
  • Stefan Erasmi and
  • Christopher Conrad

21 September 2020

Image segmentation is a cost-effective way to obtain information about the sizes and structural composition of agricultural parcels in an area. To accurately obtain such information, the parameters of the segmentation algorithm ought to be optimized...

  • Article
  • Open Access
24 Citations
3,835 Views
16 Pages

Lumbar Spine Computed Tomography to Magnetic Resonance Imaging Synthesis Using Generative Adversarial Network: Visual Turing Test

  • Ki-Taek Hong,
  • Yongwon Cho,
  • Chang Ho Kang,
  • Kyung-Sik Ahn,
  • Heegon Lee,
  • Joohui Kim,
  • Suk Joo Hong,
  • Baek Hyun Kim and
  • Euddeum Shim

18 February 2022

(1) Introduction: Computed tomography (CT) and magnetic resonance imaging (MRI) play an important role in the diagnosis and evaluation of spinal diseases, especially degenerative spinal diseases. MRI is mainly used to diagnose most spinal diseases be...

  • Review
  • Open Access
155 Citations
14,046 Views
30 Pages

Steel Surface Defect Recognition: A Survey

  • Xin Wen,
  • Jvran Shan,
  • Yu He and
  • Kechen Song

22 December 2022

Steel surface defect recognition is an important part of industrial product surface defect detection, which has attracted more and more attention in recent years. In the development of steel surface defect recognition technology, there has been a dev...

  • Article
  • Open Access
6 Citations
3,172 Views
24 Pages

5 November 2020

Deep learning-based feature extraction methods and transfer learning have become common approaches in the field of pattern recognition. Deep convolutional neural networks trained using tripled-based loss functions allow for the generation of face emb...

  • Article
  • Open Access
6 Citations
3,808 Views
12 Pages

6 January 2023

With the great breakthrough of supervised learning in the field of denoising, more and more works focus on end-to-end learning to train denoisers. In practice, however, it can be very challenging to obtain labels in support of this approach. The prem...

  • Article
  • Open Access
10 Citations
7,069 Views
16 Pages

Urdu Documents Clustering with Unsupervised and Semi-Supervised Probabilistic Topic Modeling

  • Mubashar Mustafa,
  • Feng Zeng,
  • Hussain Ghulam and
  • Hafiz Muhammad Arslan

5 November 2020

Document clustering is to group documents according to certain semantic features. Topic model has a richer semantic structure and considerable potential for helping users to know document corpora. Unfortunately, this potential is stymied on text docu...

  • Article
  • Open Access
126 Citations
21,299 Views
23 Pages

9 July 2009

This paper focuses on an automated ANN classification system consisting of two modules: an unsupervised Kohonen’s Self-Organizing Mapping (SOM) neural network module, and a supervised Multilayer Perceptron (MLP) neural network module using the Backpr...

  • Review
  • Open Access
706 Citations
39,054 Views
25 Pages

Physical Human Activity Recognition Using Wearable Sensors

  • Ferhat Attal,
  • Samer Mohammed,
  • Mariam Dedabrishvili,
  • Faicel Chamroukhi,
  • Latifa Oukhellou and
  • Yacine Amirat

11 December 2015

This paper presents a review of different classification techniques used to recognize human activities from wearable inertial sensor data. Three inertial sensor units were used in this study and were worn by healthy subjects at key points of upper/lo...

  • Article
  • Open Access
18 Citations
5,915 Views
29 Pages

19 April 2017

This paper presents a novel semi-supervised joint dictionary learning (S2JDL) algorithm for hyperspectral image classification. The algorithm jointly minimizes the reconstruction and classification error by optimizing a semi-supervised dictionary lea...

  • Article
  • Open Access
27 Citations
5,897 Views
24 Pages

Analysis of the Learning Process through Eye Tracking Technology and Feature Selection Techniques

  • María Consuelo Sáiz-Manzanares,
  • Ismael Ramos Pérez,
  • Adrián Arnaiz Rodríguez,
  • Sandra Rodríguez Arribas,
  • Leandro Almeida and
  • Caroline Françoise Martin

2 July 2021

In recent decades, the use of technological resources such as the eye tracking methodology is providing cognitive researchers with important tools to better understand the learning process. However, the interpretation of the metrics requires the use...

  • Article
  • Open Access
117 Citations
10,552 Views
18 Pages

Machine Learning Algorithms for Smart Data Analysis in Internet of Things Environment: Taxonomies and Research Trends

  • Mohammed H. Alsharif,
  • Anabi Hilary Kelechi,
  • Khalid Yahya and
  • Shehzad Ashraf Chaudhry

2 January 2020

Machine learning techniques will contribution towards making Internet of Things (IoT) symmetric applications among the most significant sources of new data in the future. In this context, network systems are endowed with the capacity to access variet...

  • Article
  • Open Access
12 Citations
4,035 Views
20 Pages

Add-On Anomaly Threshold Technique for Improving Unsupervised Intrusion Detection on SCADA Data

  • Abdulmohsen Almalawi,
  • Adil Fahad,
  • Zahir Tari,
  • Asif Irshad Khan,
  • Nouf Alzahrani,
  • Sheikh Tahir Bakhsh,
  • Madini O. Alassafi,
  • Abdulrahman Alshdadi and
  • Sana Qaiyum

Supervisory control and data acquisition (SCADA) systems monitor and supervise our daily infrastructure systems and industrial processes. Hence, the security of the information systems of critical infrastructures cannot be overstated. The effectivene...

  • Article
  • Open Access
74 Citations
33,290 Views
29 Pages

25 August 2022

Bookkeeping data free of fraud and errors are a cornerstone of legitimate business operations. The highly complex and laborious work of financial auditors calls for finding new solutions and algorithms to ensure the correctness of financial statement...

  • Article
  • Open Access
7 Citations
2,397 Views
17 Pages

Supervised classification algorithms for processing epileptic EEG signals rely heavily on the label information of the data, and existing supervised methods cannot effectively solve the problem of analyzing unlabeled epileptic EEG signals. In the tra...

  • Article
  • Open Access
70 Citations
12,213 Views
14 Pages

Machine Learning for DDoS Attack Detection in Industry 4.0 CPPSs

  • Firooz B. Saghezchi,
  • Georgios Mantas,
  • Manuel A. Violas,
  • A. Manuel de Oliveira Duarte and
  • Jonathan Rodriguez

16 February 2022

The Fourth Industrial Revolution (Industry 4.0) has transformed factories into smart Cyber-Physical Production Systems (CPPSs), where man, product, and machine are fully interconnected across the whole supply chain. Although this digitalization bring...

  • Article
  • Open Access
1 Citations
2,445 Views
20 Pages

A Proposed Method of Automating Data Processing for Analysing Data Produced from Eye Tracking and Galvanic Skin Response

  • Javier Sáez-García,
  • María Consuelo Sáiz-Manzanares and
  • Raúl Marticorena-Sánchez

8 November 2024

The use of eye tracking technology, together with other physiological measurements such as psychogalvanic skin response (GSR) and electroencephalographic (EEG) recordings, provides researchers with information about users’ physiological behavio...

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