Acta Polytechnica Hungarica: Recent submissions
Now showing items 81-100 of 104
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Comparative Analysis of AI models ‒ Using AI-supported Qualitative Data Analysis for Interview Analysis
(2025)This study aims to comparatively evaluate the performance of currently popular Artificial Intelligence (AI) models in supporting qualitative data analysis, specifically focusing on the coding and hypothesis validation ... -
Parameter Optimization in Sparse Voxel DAGs for Efficient Geometry Representation of Voxelized 3D Scenes
(2025)This paper addresses the issue of geometry representation of voxelized three- dimensional scenes, using domain-specific hierarchical data structures, utilizing lossless compression. It discusses the details of the sparse ... -
High-Performance Sensor Fault-Tolerant Control Based on μ-Synthesis Approach for Induction Motor
(2025)In this paper, we present an improved Fault-Tolerant Control (FTC) for an Induction Motor (IM) system associated with a robust sensor Fault Detection and Isolation (FDI) filter based on the robust μ-synthesis technique. ... -
Examining the Influence of Egocentric Distance on Exocentric Distance Estimation in Virtual Environments
(2025)Egocentric and exocentric distance estimations are crucially important in the modern world. However, these skills can often be inaccurately assessed in virtual environments. A virtual space with two versions was designed ... -
Position Optimization of the Roberts – Chebyshev Cognate – Compliant Mechanisms
(2025)Instead of relying solely on moving rigid-body joints, compliant mechanisms motion is defined, thanks to their joints' relative flexibility, i.e., flexure hinges. As alternatives to the rigid-body Roberts-Chebyshev ... -
Optimal Treatment of Tumor Growth, using Individual Chemotherapy Doses
(2025)This study analyzes a nonlinear model of tumor growth dynamics, describing the interactions between tumor cells, immune system cells and a chemotherapeutic drug. The primary objective is to identify a locally stable ... -
Analysis of Magnetic Force Linearity in Magnetic Levitation Systems
(2025)The important parameters of bar magnet configurations, in which the same poles are facing each other, are investigated with a focus on their potential applications in magnetic levitation. The scalar product of the magnetic ... -
Application of Data Analytics Techniques for Predicting Customer Churn
(2025)This paper deals with the classification of bank customers based on their characteristics. The aim of this research is to provide an optimal model capable of identifying customers who plan to leave the bank in the near ... -
Enhancing Video Forensics: Deep Learning Approaches to Combat Advanced Video Manipulation Techniques
(2025)This research presents a method to efficiently detect facial tampering in videos, and particularly focuses on two recent techniques, used to generate hyper realistic forged videos: Deepfake and Face2Face. Traditional ... -
Machine Learning Algorithms for Dynamic System Identification in Wastewater Treatment Plant
(2025)A comprehensive study on the application of machine learning algorithms for dynamic system identification in wastewater treatment plants (WWTP) is presented. The research focuses on developing a flexible neural network ... -
Comparing the Results Received on Desktop Display and Paper Versions of Four Spatial Ability Test Types
(2025)The spatial skills of freshman engineering students in higher education are investigated in this paper. For the analysis, the Mental Rotation Test, Mental Cutting Test, Purdue Spatial Visualization Test, and Heinrich ... -
Detection of Visual Deepfakes using Deep Convolutional Networks
(2025)With social media being a significant part of everyday life, the possibilities of misinformation spreading in textual, visual or audio form are now significantly in comparison to past. With the onset of widely available ... -
General Algorithm for Gross Error Filtering Utilizing Weighted Arithmetic Mean Value Preceding Least Square Adjustment
(2025)In the context of error detection in measurements, various methods are available depending on the magnitude of the errors. Very large gross errors, often coming from mistakes, typically need to be removed before the ... -
Time's Effect on Crime Prediction Precision and Accuracy
(2025)Crime detection with high prediction and accuracy has become a focused issue in the process of crime investigation and prevention. The higher the accuracy or precision of a crime detection model the more efficient crime ... -
Inverse Iterative Methodology for Welded Joints Characterization in Construction Designing and Comparison to Classical Approach
(2025)Traditional approach in structural designing and strength assessment that observes structure without welded joints is sufficiently accurate in terms of elastic response, in comparison to yield strength. The main idea of ... -
Dynamic Modeling Possibilities of Embedded Rail Structures
(2025)In Hungarian design practice, the Zimmermann-Eisenmann quasi-static design method is employed to dimension track structures with embedded rails. This method determines the mean values of deformations and stresses using ... -
Extracting Tailings Ponds from High Spatial Resolution Remote Sensing Images using Improved YOLOv5 and SegFormer
(2025)Dam failures in tailings ponds pose severe threats to nearby ecosystems, residents' lives, and property. Therefore, accurately and efficiently extracting information on tailings ponds is essential. Remote sensing technology ... -
Urban Land Cover Classification Using Deep Neural Networks Based on VHR MS Image and DSM
(2025)Urban environment presents one of the most challenging research fields for remote sensing data analysis tasks due to the wide range of land cover materials, and the variety of land use classes. Urban feature extraction, ... -
Mapping of Soil Moisture Variability, Using the Sentinel-2 Data Optical-Trapezoid Approach
(2025)Understanding soil moisture is crucial in various aspects of daily life and scientific pursuits. Among these, knowledge about water stress conditions holds particular significance for both agriculture and soil conservation. ... -
Bathymetric Survey and Digital Elevation Model, using an Echo Sounder/Acoustic Sonar: The Case of Dobra Lake (Hunedoara, Romania)
(2025)Bathymetric surveying represents a type of hydrographic survey that maps the details of underwater landforms such as rivers, lakes, seas or oceans. Data obtained from bathymetric surveys is especially important for ...