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Machine Learning and Knowledge Extraction, Volume 7, Issue 2

2025 June - 31 articles

Cover Story: This study explores the impactful synergy between Knowledge Graphs (KGs) and Large Language Models (LLMs), highlighting how each complements the other to strengthen explainability, transparency and contextual reasoning in AI systems. Through a systematic review of 77 peer-reviewed studies, the paper outlines how LLMs automate KG construction while KGs improve the reliability and mitigate the bias of LLM outputs. With applications in healthcare, finance and justice, this reciprocal relationship paves the way for robust, trustworthy and domain-adaptive AI. The findings offer an actionable roadmap for researchers and developers building the next generation of explainable and knowledge-driven AI. View this paper
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Articles (31)

  • Article
  • Open Access
2 Citations
2,776 Views
42 Pages

Knowledge Bases and Representation Learning Towards Bug Triaging

  • Qi Wang,
  • Weihao Yan,
  • Yanlong Li,
  • Yizheng Ge,
  • Yiwei Liu,
  • Peng Yin and
  • Shuai Tan

A large number of bug reports are submitted by users and developers in bug-tracking system every day. It is time-consuming for software maintainers to assign bug reports to appropriate developers for fixing manually. Many bug-triaging methods have be...

(This article belongs to the Section Learning)
  • Review
  • Open Access
9 Citations
17,266 Views
49 Pages

Artificial Intelligence-Empowered Embryo Selection for IVF Applications: A Methodological Review

  • Lazaros Moysis,
  • Lazaros Alexios Iliadis,
  • George Vergos,
  • Sotirios P. Sotiroudis,
  • Achilles D. Boursianis,
  • Achilleas Papatheodorou,
  • Konstantinos-Iraklis D. Kokkinidis,
  • Mohammad Abdul Matin,
  • Panagiotis Sarigiannidis and
  • Sotirios K. Goudos
  • + 2 authors

In vitro fertilization (IVF) is a well-established and efficient assisted reproductive technology (ART). However, it requires a series of costly and non-trivial procedures, and the success rate still needs improvement. Thus, increasing the success ra...

(This article belongs to the Topic Applications of Image and Video Processing in Medical Imaging)
  • Article
  • Open Access
1 Citations
2,668 Views
40 Pages

Factors Associated with COVID-19 Mortality in Mexico: A Machine Learning Approach Using Clinical, Socioeconomic, and Environmental Data

  • Lorena Díaz-González,
  • Yael Sharim Toribio-Colin,
  • Julio César Pérez-Sansalvador and
  • Noureddine Lakouari

COVID-19 mortality is a complex phenomenon influenced by multiple factors. This study aimed to identify factors associated with death in COVID-19 patients by considering clinical, demographic, environmental, and socioeconomic conditions, using machin...

(This article belongs to the Section Learning)
  • Article
  • Open Access
16 Citations
5,167 Views
23 Pages

Dataset Dependency in CNN-Based Copy-Move Forgery Detection: A Multi-Dataset Comparative Analysis

  • Potito Valle Dell’Olmo,
  • Oleksandr Kuznetsov,
  • Emanuele Frontoni,
  • Marco Arnesano,
  • Christian Napoli and
  • Cristian Randieri

Convolutional neural networks (CNNs) have established themselves over time as a fundamental tool in the field of copy-move forgery detection due to their ability to effectively identify and analyze manipulated images. Unfortunately, they still repres...

(This article belongs to the Special Issue Deep Learning in Image Analysis and Pattern Recognition, 2nd Edition)
  • Perspective
  • Open Access
2 Citations
5,171 Views
16 Pages

MediaWatchers4Climate: Assessing the Accuracy of Climate Change Narratives in Greek Media Through Machine Learning

  • Thomai Baltzi,
  • Stella Nikitaki,
  • Fani Galatsopoulou,
  • Ioanna Kostarella,
  • Andreas Veglis,
  • Vasilis Vasilopoulos,
  • Dimitris Papaevagelou and
  • Antonis Skamnakis

This study introduces MediaWatchers4Climate, a methodological framework that leverages machine learning to evaluate the accuracy and rhetorical framing of climate change narratives in Greek online media. The model is designed to analyze large-scale t...

  • Article
  • Open Access
7 Citations
5,012 Views
18 Pages

Context-Aware Few-Shot Learning SPARQL Query Generation from Natural Language on an Aviation Knowledge Graph

  • Ines-Virginia Hernandez-Camero,
  • Eva Garcia-Lopez,
  • Antonio Garcia-Cabot and
  • Sergio Caro-Alvaro

Question answering over domain-specific knowledge graphs implies several challenges. It requires sufficient knowledge of the world and the domain to understand what is being asked, familiarity with the knowledge graph’s structure to build a cor...

  • Article
  • Open Access
5 Citations
7,354 Views
17 Pages

Effectively leveraging cognitive load predictions helps optimize collaborative learning design and implementation. This study explored the feasibility of predicting individual learners’ cognitive load during collaborative learning using a combi...

  • Article
  • Open Access
8 Citations
4,051 Views
18 Pages

Brain tumor classification poses significant challenges in medical imaging, largely due to the heterogeneity and structural complexity of tumors. With Magnetic Resonance Imaging (MRI) serving as a cornerstone for diagnosis, manual interpretation by r...

(This article belongs to the Special Issue Advances in Machine and Deep Learning)
  • Article
  • Open Access
5 Citations
2,499 Views
26 Pages

Autonomous trains require reliable and accurate environmental perception to take over safety-critical tasks from the driver. This paper investigates the application of N-version architectures to rail track detection using Deep Neural Networks (DNNs)...

(This article belongs to the Section Visualization)
  • Article
  • Open Access
2 Citations
2,891 Views
24 Pages

The purpose of this paper is twofold. On a technical side, we propose an extension of the Hausdorff distance from metric spaces to spaces equipped with asymmetric distance measures. Specifically, we focus on extending it to the family of Bregman dive...

(This article belongs to the Collection Extravaganza Feature Papers on Hot Topics in Machine Learning and Knowledge Extraction)
  • Article
  • Open Access
3 Citations
3,648 Views
21 Pages

This study introduces artificial intelligence as a powerful tool to transform bioequivalence (BE) trials. We apply advanced generative models, specifically Wasserstein Generative Adversarial Networks (WGANs), to create virtual subjects and reduce the...

(This article belongs to the Section Network)
  • Article
  • Open Access
1 Citations
4,967 Views
22 Pages

Revolutionizing Cardiac Risk Assessment: AI-Powered Patient Segmentation Using Advanced Machine Learning Techniques

  • Joan D. Gonzalez-Franco,
  • Alejandro Galaviz-Mosqueda,
  • Salvador Villarreal-Reyes,
  • Jose E. Lozano-Rizk,
  • Raul Rivera-Rodriguez,
  • Jose E. Gonzalez-Trejo,
  • Alexei-Fedorovish Licea-Navarro,
  • Jorge Lozoya-Arandia and
  • Edgar A. Ibarra-Flores

Cardiovascular diseases stand as the leading cause of mortality worldwide, underscoring the urgent need for effective tools that enable early detection and monitoring of at-risk patients. This study combines Artificial Intelligence (AI) techniques&md...

(This article belongs to the Special Issue Sustainable Applications for Machine Learning)
  • Article
  • Open Access
1 Citations
4,819 Views
14 Pages

Although the manual classification of microfossils is possible, it can become burdensome. Machine learning offers an alternative that allows for automatic classification. Our contribution is to use machine learning to develop an automated approach fo...

(This article belongs to the Special Issue Deep Learning in Image Analysis and Pattern Recognition, 2nd Edition)
  • Article
  • Open Access
1 Citations
3,404 Views
20 Pages

Quantum-Inspired Models for Classical Time Series

  • Zoltán Udvarnoki and
  • Gábor Fáth

We present a model of classical binary time series derived from a matrix product state (MPS) Ansatz widely used in one-dimensional quantum systems. We discuss how this quantum Ansatz allows us to generate classical time series in a sequential manner....

(This article belongs to the Section Data)
  • Article
  • Open Access
1 Citations
7,905 Views
19 Pages

Membership Inference Attacks Fueled by Few-Shot Learning to Detect Privacy Leakage and Address Data Integrity

  • Daniel Jiménez-López,
  • Nuria Rodríguez-Barroso,
  • M. Victoria Luzón,
  • Javier Del Ser and
  • Francisco Herrera

Deep learning models have an intrinsic privacy issue as they memorize parts of their training data, creating a privacy leakage. Membership inference attacks (MIAs) exploit this to obtain confidential information about the data used for training, aimi...

(This article belongs to the Section Safety, Security, Privacy, and Cyber Resilience)
  • Article
  • Open Access
8 Citations
4,443 Views
18 Pages

Leveraging Failure Modes and Effect Analysis for Technical Language Processing

  • Mathieu Payette,
  • Georges Abdul-Nour,
  • Toualith Jean-Marc Meango,
  • Miguel Diago and
  • Alain Côté

With the evolution of data collection technologies, sensor-generated data have become the norm. However, decades of manually recorded maintenance data still hold untapped value. Natural Language Processing (NLP) offers new ways to extract insights fr...

(This article belongs to the Section Data)
  • Article
  • Open Access
5 Citations
3,477 Views
24 Pages

As programming education becomes increasingly complex, grading student code has become a challenging task. Traditional methods, such as dynamic and static analysis, offer foundational approaches but often fail to provide granular insights, leading to...

(This article belongs to the Section Learning)
  • Article
  • Open Access
3 Citations
2,556 Views
36 Pages

Knee osteoarthritis (KOA) is a highly prevalent muscoloskeletal joint disorder affecting a significant portion of the population worldwide. Accurate predictions of KOA progression can assist clinicians in drawing preventive strategies for patients. I...

(This article belongs to the Section Network)
  • Systematic Review
  • Open Access
41 Citations
21,687 Views
27 Pages

Knowledge Graphs and Their Reciprocal Relationship with Large Language Models

  • Ramandeep Singh Dehal,
  • Mehak Sharma and
  • Enayat Rajabi

The reciprocal relationship between Large Language Models (LLMs) and Knowledge Graphs (KGs) highlights their synergistic potential in enhancing artificial intelligence (AI) applications. LLMs, with their natural language understanding and generative...

(This article belongs to the Section Data)
  • Article
  • Open Access
7 Citations
9,213 Views
19 Pages

PIDQA—Question Answering on Piping and Instrumentation Diagrams

  • Mohit Gupta,
  • Chialing Wei,
  • Thomas Czerniawski and
  • Ricardo Eiris

This paper introduces a novel framework enabling natural language question answering on Piping and Instrumentation Diagrams (P&IDs), addressing a critical gap between engineering design documentation and intuitive information retrieval. Our appro...

(This article belongs to the Section Visualization)
  • Article
  • Open Access
3 Citations
2,317 Views
22 Pages

Particle tracking velocimetry (PTV) forms the basis for many fluid dynamic experiments, in which individual particles are tracked across multiple successive images. However, when the experimental setup involves high-speed, high-density particles that...

(This article belongs to the Section Network)
  • Article
  • Open Access
1 Citations
4,077 Views
12 Pages

Machine-Learned Codes from EHR Data Predict Hard Outcomes Better than Human-Assigned ICD Codes

  • Ying Yin,
  • Yijun Shao,
  • Phillip Ma,
  • Qing Zeng-Treitler and
  • Stuart J. Nelson

We used machine learning (ML) to characterize 894,154 medical records of outpatient visits from the Veterans Administration Central Data Warehouse (VA CDW) by the likelihood of assignment of 200 International Classification of Diseases (ICD) code blo...

(This article belongs to the Section Learning)
  • Article
  • Open Access
3 Citations
6,937 Views
16 Pages

ADTime: Adaptive Multivariate Time Series Forecasting Using LLMs

  • Jinglei Pei,
  • Yang Zhang,
  • Ting Liu,
  • Jingbin Yang,
  • Qinghua Wu and
  • Kang Qin

Large language models (LLMs) have recently demonstrated notable performance, particularly in addressing the challenge of extensive data requirements when training traditional forecasting models. However, these methods encounter significant challenges...

(This article belongs to the Section Learning)
  • Article
  • Open Access
2,244 Views
13 Pages

Pattern Matching-Based Denoising for Images with Repeated Sub-Structures

  • Anil Kumar Mysore Badarinarayana,
  • Christoph Pratsch,
  • Thomas Lunkenbein and
  • Florian Jug

In electron microscopy, obtaining low-noise images is often difficult, especially when examining biological samples or delicate materials. Therefore, the suppression of noise is essential for the analysis of such noisy images. State-of-the-art image...

(This article belongs to the Topic Applied Computer Vision and Pattern Recognition: 2nd Edition)
  • Article
  • Open Access
6 Citations
4,898 Views
22 Pages

Optimisation-Based Feature Selection for Regression Neural Networks Towards Explainability

  • Georgios I. Liapis,
  • Sophia Tsoka and
  • Lazaros G. Papageorgiou

Regression is a fundamental task in machine learning, and neural networks have been successfully employed in many applications to identify underlying regression patterns. However, they are often criticised for their lack of interpretability and commo...

(This article belongs to the Section Learning)
  • Article
  • Open Access
3 Citations
4,892 Views
14 Pages

RoSe-Mix: Robust and Secure Deep Neural Network Watermarking in Black-Box Settings via Image Mixup

  • Tamara El Hajjar,
  • Mohammed Lansari,
  • Reda Bellafqira,
  • Gouenou Coatrieux,
  • Katarzyna Kapusta and
  • Kassem Kallas

Due to their considerable costs, deep neural networks (DNNs) are valuable assets that need to be protected in terms of intellectual property (IP). From this statement, DNN watermarking gains significant interest since it allows DNN owners to prove th...

(This article belongs to the Section Safety, Security, Privacy, and Cyber Resilience)
  • Article
  • Open Access
7 Citations
5,999 Views
17 Pages

Leveraging LLMs for Non-Security Experts in Threat Hunting: Detecting Living off the Land Techniques

  • Antreas Konstantinou,
  • Dimitrios Kasimatis,
  • William J. Buchanan,
  • Sana Ullah Jan,
  • Jawad Ahmad,
  • Ilias Politis and
  • Nikolaos Pitropakis

This paper explores the potential use of Large Language Models (LLMs), such as ChatGPT, Google Gemini, and Microsoft Copilot, in threat hunting, specifically focusing on Living off the Land (LotL) techniques. LotL methods allow threat actors to blend...

(This article belongs to the Section Safety, Security, Privacy, and Cyber Resilience)
  • Article
  • Open Access
5 Citations
2,528 Views
21 Pages

In today’s rapidly evolving transportation infrastructure, developing long-lasting, high-performance pavement materials remains a significant priority. Integrating machine learning (ML) techniques provides a transformative approach to optimizin...

(This article belongs to the Section Learning)
  • Article
  • Open Access
1 Citations
2,451 Views
31 Pages

Optimizing a Double Stage Heat Transformer Performance by Levenberg–Marquardt Artificial Neural Network

  • Suset Vázquez-Aveledo,
  • Rosenberg J. Romero,
  • Lorena Díaz-González,
  • Moisés Montiel-González and
  • Jesús Cerezo

Waste heat recovery is a critical strategy for optimizing energy consumption and reducing greenhouse gas emissions. In this context, the circular economy highlights the importance of this practice as a key tool to enhance energy efficiency, minimize...

(This article belongs to the Special Issue Sustainable Applications for Machine Learning)
  • Feature Paper
  • Article
  • Open Access
3 Citations
5,410 Views
27 Pages

As climate change transforms our environment and human intrusion into natural ecosystems escalates, there is a growing demand for disease spread models to forecast and plan for the next zoonotic disease outbreak. Accurate parametrization of these mod...

(This article belongs to the Section Learning)
  • Article
  • Open Access
13 Citations
5,637 Views
37 Pages

(1) Background: This paper intends to accomplish a comparative study and analysis regarding the multiclass classification of facial thermal images, i.e., in three classes corresponding to predefined emotional states (neutral, happy and sad). By carry...

(This article belongs to the Section Learning)
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Mach. Learn. Knowl. Extr. - ISSN 2504-4990