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Machine Learning and Knowledge Extraction, Volume 8, Issue 2

2026 February - 28 articles

Cover Story: Conversational agents—from chatbots to LLM-based assistants—are reshaping healthcare, education and services, yet “interaction quality” is still fragmented and inconsistently measured. In an integrative review of 125 studies (2017–2025), we identify three layers of user judgment: a pragmatic core (usability, task effectiveness, conversational competence), a social–affective layer (social presence, warmth, synchronicity), and an accountability/inclusion layer (transparency, accessibility, fairness). We translate these findings into a four-layer framework—Capacity, Alignment, Levers and Outcomes—operationalised with a Capacity × Alignment matrix that helps diagnose quality regimes and points to actionable design levers for trustworthy, effective and inclusive human–AI dialogue. View this paper
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Articles (28)

  • Article
  • Open Access
274 Views
54 Pages

As network environments become increasingly interconnected, ensuring robust cyber-security has become critical, particularly with the growing sophistication of modern cyber threats. Intrusion detection systems (IDSs) play a vital role in identifying...

  • Article
  • Open Access
184 Views
24 Pages

Support Vector Machine (SVM) is a popular kernel-based method for data classification that has demonstrated high efficiency across a wide range of practical applications. However, SVM suffers from several limitations, including the potential failure...

  • Review
  • Open Access
394 Views
22 Pages

Innovations in Robots for Weed and Pest Control: A Systematic Review of Cutting-Edge Research

  • Nicola Furnitto,
  • Giuseppe Todde,
  • Maria Spagnuolo,
  • Giuseppe Sottosanti,
  • Maria Caria,
  • Giampaolo Schillaci and
  • Sabina I. G. Failla

In recent years, agriculture has begun to transform thanks to the arrival of robots and autonomous vehicles capable of performing complex operations such as weeding and spraying in an intelligent and targeted manner. In fact, new-generation agricultu...

  • Article
  • Open Access
419 Views
40 Pages

Why So Meme? A Comparative and Explainable Analysis of Multimodal Hateful Meme Detection

  • Nor Saiful Azam Bin Nor Azmi,
  • Michal Ptaszynski,
  • Fumito Masui and
  • Abu Nowhash Chowdhury

The rise of toxic content, particularly in the form of hateful memes, poses a significant challenge to social media platforms. This paper presents an empirical comparative study of unimodal and multimodal architectures for toxic content detection. Ra...

  • Article
  • Open Access
348 Views
23 Pages

Plug-and-Play LLM Knowledge Extraction for Robot Navigation: A Fine-Tuning-Free Edge Framework

  • Sebastian Rojas-Ordoñez,
  • Mikel Segura,
  • Irune Yarza,
  • Veronica Mendoza and
  • Ekaitz Zulueta

Large Language Models are increasingly used for high-level robotic reasoning, yet their latency and stochasticity complicate their direct use in low-level control. Moreover, extracting actionable navigation cues from multimodal context incurs inferen...

  • Article
  • Open Access
351 Views
19 Pages

Novel Loss Functions for Improved Data Visualization in t-SNE

  • Sara Nassar,
  • Rachid Hedjam and
  • Samir Brahim Belhaouari

A popular method for projecting high-dimensional data onto a lower-dimensional space while preserving the integrity of its structure is t-distributed Stochastic Neighbor Embedding (t-SNE). This technique minimizes the Kullback–Leibler (KL) dive...

  • Article
  • Open Access
706 Views
21 Pages

The transition of Large Language Models (LLMs) from centralized clouds to edge environments is critical for addressing privacy concerns, latency bottlenecks, and operational costs. However, existing edge benchmarking frameworks remain tailored to dis...

  • Article
  • Open Access
353 Views
21 Pages

SkySeg-Net: Sky Segmentation-Based Row-Terminal Recognition in Trellised Orchards

  • Haiyang Gu,
  • Yong Wang,
  • Huaiyang Liu,
  • Tong Tian,
  • Changxing Geng and
  • Yun Shi

Perception in trellised orchards is often challenged by dense canopy occlusion and overhead plastic coverings, which cause pronounced variations in sky visibility at row terminals. Accurately recognizing row terminals, including both row head and row...

  • Article
  • Open Access
386 Views
17 Pages

Adverse weather removal aims to restore images degraded by haze, rain, or snow. However, existing unified models often rely on implicit degradation cues, making them vulnerable to inaccurate weather perception and insufficient semantic guidance, whic...

  • Article
  • Open Access
308 Views
19 Pages

Improving Ground Cover Crop Fractional Vegetation Mapping via Causality-Based Deep Representation Learning

  • Atif Latif,
  • Masoumeh Hashemi,
  • Matt Yost,
  • Somayeh Esmaeili and
  • Xiaojun Qi

Semantic segmentation and deep learning methods have rarely been applied to fractional vegetation cover (FVC) segmentation tasks due to the lack of publicly available datasets for training deep learning models. FVC is a key indicator for assessing ve...

  • Article
  • Open Access
447 Views
37 Pages

Towards LLM-Driven Cybersecurity in Autonomous Vehicles: A Big Data-Empowered Framework with Emerging Technologies

  • Aristeidis Karras,
  • Leonidas Theodorakopoulos,
  • Christos Karras and
  • Alexandra Theodoropoulou

Modern Autonomous Vehicles generate large volumes of heterogeneous in-vehicle data, making cybersecurity a critical challenge as adversarial attacks become increasingly adaptive, stealthy, and multi-protocol. Traditional intrusion detection systems o...

  • Article
  • Open Access
511 Views
14 Pages

This paper presents a scalable machine learning pipeline for extracting actionable, product-related insights from user-generated social media comments. Leveraging sentence embeddings from SBERT and unsupervised clustering (k-Means and agglomerative),...

  • Article
  • Open Access
686 Views
28 Pages

The use of large language models (LLMs) to automate the generation of medical case-based multiple-choice questions (MCQs) is increasing, but their accuracy, reliability, and educational validity are still not well understood. This study in a comparat...

  • Article
  • Open Access
382 Views
38 Pages

The early and accurate identification of breast cancer is a significant healthcare issue, largely because the traditional machine learning approaches rely on handcrafted features that are unable to fully capture the spatial and textural complexity fo...

  • Article
  • Open Access
348 Views
23 Pages

Visual Perception and Robust Autonomous Following for Orchard Transportation Robots Based on DeepDIMP-ReID

  • Renyuan Shen,
  • Yong Wang,
  • Huaiyang Liu,
  • Haiyang Gu,
  • Changxing Geng and
  • Yun Shi

Dense foliage, severe illumination variations, and interference from multiple individuals with similar appearances in complex orchard environments pose significant challenges for vision-based following robots in maintaining persistent target percepti...

  • Perspective
  • Open Access
679 Views
20 Pages

The Innovative Potential of Artificial Intelligence Applied to Patient Registries to Implement Clinical Guidelines

  • Sebastiano Gangemi,
  • Alessandro Allegra,
  • Mario Di Gioacchino,
  • Luca Gammeri,
  • Irene Cacciola and
  • Giorgio Walter Canonica

Guidelines provide specific recommendations based on the best available medical knowledge, summarizing and balancing the advantages and disadvantages of various diagnostic and treatment options. Currently, consensus methods are the best and most comm...

  • Article
  • Open Access
551 Views
25 Pages

This study investigates how Vision Language Models (VLMs) can be used and methodically configured to extract Environmental, Social, and Governance (ESG) metrics from corporate sustainability reports, addressing the limitations of existing text-only a...

  • Article
  • Open Access
587 Views
22 Pages

The increasing integration of artificial intelligence (AI) in decision-making processes has amplified discussions surrounding algorithmic authority—the perceived epistemic legitimacy of AI systems over human judgment. This study investigates ho...

  • Article
  • Open Access
321 Views
25 Pages

Migraine and epilepsy are common neurological disorders that share overlapping symptoms, such as visual disturbances and altered consciousness, making accurate diagnosis challenging. Although their underlying mechanisms differ, both conditions involv...

  • Article
  • Open Access
287 Views
22 Pages

AuraViT-FL: A Resource-Efficient 2D Hybrid Transformer Framework for Federated Lung Tumor Segmentation

  • Mohamed A. Abdelhamed,
  • Hana M. Nassef,
  • Sara Abdelnasser,
  • Sahar Selim and
  • Lobna A. Said

Accurate lung tumor segmentation using computed tomography (CT) scans is needed for efficient tumor treatment. However, the development of deep learning models is often constrained by strict patient privacy regulations that limit direct data sharing....

  • Article
  • Open Access
368 Views
22 Pages

In an e-learning platform, information retrieval plays an enormous role through efficient processing. Recently, the education sector has increased its trend in online learning systems by generating a large amount of educational content based on stude...

  • Article
  • Open Access
418 Views
20 Pages

Manifold Integration of Lung Emphysema Signatures (MILES): A Radiomic-Based Study

  • Marek Socha,
  • Agata Durawa,
  • Małgorzata Jelito,
  • Katarzyna Dziadziuszko,
  • Witold Rzyman,
  • Edyta Szurowska and
  • Joanna Polanska

Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide, and emphysema is present in the majority of affected patients and can be identified on computed tomography (CT). This study investigated whether radiomic feat...

  • Article
  • Open Access
922 Views
37 Pages

Attention-Driven Feature Extraction for XAI in Histopathology Leveraging a Hybrid Xception Architecture for Multi-Cancer Diagnosis

  • Shirin Shila,
  • Md. Safayat Hossain,
  • Md Fuyad Al Masud,
  • Mohammad Badrul Alam Miah,
  • Afrig Aminuddin and
  • Zia Muhammad

The automated and accurate results of classifying histopathology images are necessary in the early detection of cancer, especially the common cancers such as Colorectal Cancer (CRC) and Lung Cancer (LC). Nonetheless, classical deep learning framework...

  • Article
  • Open Access
614 Views
35 Pages

Hierarchical Caching for Agentic Workflows: A Multi-Level Architecture to Reduce Tool Execution Overhead

  • Farhana Begum,
  • Craig Scott,
  • Kofi Nyarko,
  • Mansoureh Jeihani and
  • Fahmi Khalifa

Large Language Model (LLM) agents depend heavily on multiple external tools such as APIs, databases and computational services to perform complex tasks. However, these tool executions create latency and introduce costs, particularly when agents handl...

  • Article
  • Open Access
603 Views
26 Pages

Axiom Generation for Automated Ontology Construction from Texts Through Schema Mapping

  • Tsitsi Zengeya,
  • Jean Vincent Fonou-Dombeu and
  • Mandlenkosi Gwetu

Ontology learning from unstructured text has become a critical task for knowledge-driven applications in Big Data and Artificial Intelligence. While significant advances have been made in the automatic extraction of concepts and relations using neura...

  • Article
  • Open Access
1,155 Views
27 Pages

Conversational agents are transforming digital interactions across various domains, including healthcare, education, and customer service, thanks to advances in large language models (LLMs). As these systems become more autonomous and ubiquitous, und...

  • Systematic Review
  • Open Access
923 Views
45 Pages

Artificial Intelligence Techniques for Thyroid Cancer Classification: A Systematic Review

  • Yanche Ari Kustiawan,
  • Khairil Imran Ghauth,
  • Sakina Ghauth,
  • Liew Yew Toong and
  • Sien Hui Tan

Artificial intelligence (AI), particularly machine learning and deep learning architectures, has been widely applied to support thyroid cancer diagnosis, but existing evidence on its performance and limitations remains scattered across techniques, ta...

  • Article
  • Open Access
471 Views
17 Pages

Transformer-Driven Semi-Supervised Learning for Prostate Cancer Histopathology: A DINOv2–TransUNet Framework

  • Rubina Akter Rabeya,
  • Jeong-Wook Seo,
  • Nam Hoon Cho,
  • Hee-Cheol Kim and
  • Heung-Kook Choi

Prostate cancer is diagnosed through a comprehensive study of histopathology slides, which takes time and requires professional interpretation. To minimize this load, we developed a semi-supervised learning technique that combines transformer-based r...

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Mach. Learn. Knowl. Extr. - ISSN 2504-4990