Acta Polytechnica Hungarica
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A frissen beadott dokumentumok
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The Future of Adaptive Grids using the Kalman Filter, for Data Smoothing and Data Prediction
(2024)The modern power grid is facing unprecedented challenges, due to a rapid integration of renewable energy sources. Renewable sources, such as solar and wind power, are inherently variable and unpredictable, introducing ... -
A General Chip Subpixel Segmentation Localization Method Based on Improved Mayfly Algorithm
(2024)In order to improve the robustness of processing chip images in surface mount technology, especially when it comes to using a single threshold value under different lighting conditions, this paper aims to propose a chip ... -
Artificial Intelligence Techniques and Biomimetic Methods Supporting Heat Treatment Processes
(2024)In the last decade several computational methods have been applied successfully to optimize the heat treatment processes. Among others, Biomimetic methods have been developed for solving complex and robust optimization ... -
Fuzzy FMEA-based Risk Evaluation of Student Software Projects
(2024)Team project work plays an important role in the curriculum of computer science engineering students. It allows students to synthesize the theoretical and practical knowledge and skills acquired during their previous ... -
Investigating Traditional Machine Learning Models and the Utility of Audio Features for Lightweight Swarming Prediction in Beehives
(2024)Remote monitoring of the status of beehives is essential for efficient beekeeping, leading to less workload on the beekeeper and, because of not opening the hives too frequently, to less stress for the colonies. Sound ... -
Resilient Sampled-Data Event-Triggered Control for Switched Systems Under Denial of Service Attacks
(2024)This paper focuses on the asynchronous event-triggered control problem for networked switched systems with denial-of-service (DoS) attacks. To counteract the negative influence of DoS attacks and permit the system frequent ... -
Inlet Air Flow Sensing for the iSTC-21v Small Jet Engine
(2024)Accurate measurement of the flow rate of air entering the jet engine is very important from the point of view of the design of control algorithms and diagnostic systems (e.g. when classifying situational frameworks of ... -
When Is a Single “And”-Condition Enough?
(2024)In many practical situations, there are several possible decisions. Any general recommendation means specifying, for each possible decision, conditions under which this decision is recommended. In some cases, a single ... -
Optimization of Mamdani-type Fuzzy Risk Assessment Models
(2025)Nowadays, risk assessment has become the focus of many research efforts, which is the result of environmental, health and/or war related situations. One of the most important trends for the risk assessment models is the ... -
On Horizontal Fuzzy Relations and Hypotheses Testing
(2024)Making decisions in conditions of uncertainty is one of today’s everyday problems. Various statistical models have found their place in practical applications, however working with imprecise, quite often fuzzy valued, ... -
Integration of Standardised Management Systems
(2024)In economic, political, and natural environments as changing and hazardous as those of our days, far-sighted corporate planning is often impossible. Corporate management has recently been determined, both in Hungary and ... -
Electric Vehicle Charging Socket Detection using YOLOv8s Model
(2024)This paper introduces the utilization of the latest small You Only Look Once version 8 – YOLOv8s convolutional neural network in an automatic electric vehicle charging application study. The employment of a deep ... -
Prepocessing of Visual and Audio Information Based on a Fuzzy Network
(2024)In this paper we present the results of a study related to the development of the most effective representation and organization of libraries of visual and sound objects in terms of the absence of any restrictions and ... -
Knowledge Base Optimization of the HFRIQ- Learning
(2024)The learning process of conventional reinforcement learning methods, such as Q- learning and SARSA typically start with an empty knowledge base. In each iteration step, the initial empty knowledge base is gradually ... -
Using Tensor-Type Formalism in Causal Networks
(2024)The causal network is a possible description of complex phenomena, and several domains, for example, Machine Learning, Social Science, and Artificial Intelligence. Although a successful solution is referred to in this ... -
Modular C++ Library for Relaxed Unscented Kalman-Filtering
(2024)Filtering and sensor fusion are critical tasks in advanced engineering applica- tions, especially in robotics and autonomous vehicles. It is a general problem that the high accuracy and low computational cost are mutually ... -
Towards the Development of an Automated Assessment System for the Fundamentals of Laparoscopic Surgery Tests
(2024)The objective of this paper is to provide an overview of projects carried out in the framework of a research collaboration between the Department of Electrical and Computer Engineering and the Department of Surgery, in ... -
Strategies and Outcomes of Building a Successful University Research and Innovation Ecosystem
(2024)Óbuda University (OU) has created a regionally unique innovation ecosystem around the traditional university structure and organization. This includes their 7 faculties, the University Research and Innovation Center ... -
Exponential and logarithm on semi-Riemannian manifolds of constant curvature
(2024)The aim of this work is the unified study of the exponential and logarithm maps on semi-Riemannian manifold of constant curvature in order to prove their analytical prop- erties and find their power series expansions. ... -
Comparative Assessment of Physical and Machine Learning Models for Wind Power Estimation: A Case Study for Hungary
(2024)In the context of the planned mid-term development of wind power plants in Hungary, the authors evaluated the applicability of a physical-based model and several machine-learning models for wind power production estimation ...
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