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International Computer Sciences and Information Technologies (CSIT)

作者： Lesia Dubchak Anatoliy Sachenko Carsten Wolff Nadiia Vasylkiv Zenovii Bernas Department of Computer Engineering West Ukrainian National University Ternopil Ukraine Research Institute for Intelligent Computer Systems West Ukrainian National University Ternopil Ukraine Department of Tele-Informatics Kazimierz Pulaski University of Technology and Humanities in Radom Radom Poland Dortmund University of Applied Science and Arts Dortmund Germany Department of Information Computer Systems and Control West Ukrainian National University Ternopil Ukraine

ISBN: (数字)9798331542634

ISBN: (纸本)9798331542641

The article presents a study on classifying wind turbine defects using the SqueezeNet neural network. Wind turbines are critical for renewable energy, but defects such as corrosion, erosion, and cracks can significantly reduce their efficiency. The study proposes using image classification techniques with neural networks, particularly SqueezeNet, to automate defect detection. The compact nature of SqueezeNet makes it suitable for real-time applications with limited computing resources. Through training and testing, the network achieved an accuracy of 89%, demonstrating its potential to improve wind turbine maintenance and reduce operational costs.

关键词： Training Accuracy Costs Neural networks Real-time systems Wind turbines Maintenance Defect detection Testing Image classification

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Departure Counting Process in a Finite-Buffer Queue with Batch Arrivals and Multiple Vacation Policy

SSRN

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SSRN 2024年

作者： Marjasz, Rafal Kempa, Wojciech M. Kovtun, Viacheslav Institute of Theoretical and Applied Informatics Polish Academy of Sciences 5 Baltycka Str. Gliwice44-100 Poland Silesian University of Technology Faculty of Applied Mathematics 23 Kaszubska Str. Gliwice44-100 Poland Vinnytsia National Technical University Faculty of Intelligent Information Technologies and Automation Department of Computer Control Systems 95 Khmelnitske Shose Str. Vinnytsia21000 Ukraine

The study investigates the departure counting process in a finite-buffer queueing system with batch arrivals and multiple vacation policy. A representation for the mixed double transform of the number of departures up to the fixed time moment is obtained in the explicit form applying analytic approach based on integral equations and linear algebra. Numerical study is attached that focuses on understanding the impact of various system parameters on the behaviour of the mean number of packets processed within a fixed time frame. Utilizing numerical experiments, the study examines the influence of vacation duration, initial buffer state, arrival intensity, and processing rate on the departure process. Results reveal significant dependencies between these parameters and the transient behaviour of the queueing system. Notably, the service speed parameter demonstrates the most substantial influence on the mean number of processed packets, followed by the arrival rate. Conversely, variations in vacation duration and initial packet count exhibit comparatively minor effects on system behaviour. Overall, the findings provide valuable insights into the dynamics of departure processes in finite-buffer queue systems with batch arrivals and multiple vacation policies, offering implications for system optimization and performance enhancement strategies. © 2024, The Authors. All rights reserved.

关键词： Integral equations

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Continual Learning of a Time Series Model Using a Mixture of HMMs with Application to the IoT Fuel Sensor Verification

Continual Learning of a Time Series Model Using a Mixture of...

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Federated Conference on Computer Science and Information systems (FedCSIS)

作者： Przemysław Głomb Michał Cholewa Paweł Foszner Jakub Bularz Institute of Theoretical and Applied Informatics Polish Academy of Sciences Gliwice Poland Department of Computer Graphics Vision and Digital Systems Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology Gliwice Poland AIUT Sp. z o.o. ul Gliwice Poland

This paper presents an application of a mixture of Hidden Markov Models (HMMs) as a tool for verification of IoT fuel sensors. The IoT fuel sensors report the level of fuel in tanks of a petrol station, and are a key component for monitoring system reliability (billing), safety (fuel/oil leak detection) and security (theft prevention). We propose an algorithm for learning a mixture of HMMs based on a continual learning principle, i.e. it adapts the model while monitoring a sensor over time, signalling unexpected or anomalous sensor reports. We have tested the proposed approach on a real-life data of 15 fuel tanks being monitored with the FuelPrime system, where it has shown a very good performance (average area under ROC curve of 0.94) of detecting anomalies in the sensor data. Additionally we show that the proposed method can be used for trend monitoring and present qualitative analysis of the short and long term learning performance. The proposed method has promising performance score, the resulting model has a high degree of explainability, limited memory and computation requirements and can be easily generalized to other domains of sensor verification.

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Improved method of segmentation of images from space-based optoelectronic observation systems based on Otsu's algorithm with global and adaptive thresholds 4

Improved method of segmentation of images from space-based o...

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4th IEEE KhPI Week on Advanced Technology, KhPI Week 2023

作者： Khudov, Hennadii Kalimulin, Temir Khudov, Rostyslav Butko, Ihor Burtseva, Viktoriia Burtsev, Valeriy Department of Radar Troops Tactic Ivan Kozhedub Kharkiv National Air Force University Kharkiv Ukraine Department of Theoretical and Applied Informatics V.N.Karazin Kharkiv National University Kharkiv Ukraine Department of Computer Sciences and Software Engineering Academician Y. Bugay International Scientific and Technical University Kyiv Ukraine Scientific Research Department of Military Standards Metrology Center of Military Standards Kharkiv Ukraine Department of Control Systems of Antiaircraft Missile Troops Ivan Kozhedub Kharkiv National Air Force University Kharkiv Ukraine

ISBN: (纸本)9798350395532

An analysis of optoelectronic image, received from space-based observation system has been carried out. It has been found out, that this image has a complex structure and a unimodal intensity histogram. Otsu method is chosen as to segment the image. This method is easy and relatively quick, when talking of its realization. Methods of global and adaptive thresholding have been researched to perform image segmentation. Results of experimental research of segmentation of optoelectronic image from space-based observation system with use of Otsu method are developed. Ways for future research in this area are defined. © 2023 IEEE.

关键词： Image segmentation

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Threshold Wavelet Filtering of Images Based on Weight Model

Threshold Wavelet Filtering of Images Based on Weight Model

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applied Mathematics, Computational Science and Mechanics: Current Problems (AMCSM)

作者： Maya Lyasheva Stella Lyasheva Mikhail Shleymovich Department for Automated Systems for Information Processing and Control Kazan National Research Technical University named after A.N. Tupolev-KAI Kazan Russian Federation Department for Applied Mathematics and Informatics Kazan National Research Technical University named after A.N. Tupolev-KAI Kazan Russian Federation

ISBN: (数字)9798350348576

ISBN: (纸本)9798350348583

Many modern information processing and control systems are based on computer vision technologies. In such systems, a number of tasks are solved, including the task of primary image processing. The primary processing is designed to transform the geometric, brightness and color characteristics of images, ensuring that they are brought to the best possible appearance for further analysis. Brightness conversion must be performed to implement image enhancement and restoration procedures. Threshold wavelet filtering is the basis of one of the frequently used approaches for solving these problems. To build the appropriate procedures in this article, it is proposed to use a weight model of the image. This model allows us to obtain estimates of the significance of the contribution of pixels to the total energy of the analyzed image.

关键词： Wavelet transforms Computer vision Analytical models Filtering Noise Brightness Information processing

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Application of the Weight Model to Detect the State Registration Number of the Vehicle in the Image

Application of the Weight Model to Detect the State Registra...

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2021 International Russian Automation Conference, RusAutoCon 2021

作者： Lyasheva, Maya M. Lyasheva, Stella A. Shleymovich, Mikhail P. Kazan National Research Technical University Named after A. N. Tupolev-KAI Department for Automated Systems for Information Processing and Control Kazan Russia Kazan National Research Technical University Named after A. N. Tupolev-KAI Department for Applied Mathematics and Informatics Kazan Russia

ISBN: (纸本)9780738131566

The article deals with the issues of detecting state registration numbers of vehicles in images when solving the problem of their identification in intelligent transport systems. The main approaches for solving this problem are described, which belong to two classes-based on image processing and based on machine learning. It is shown that, despite the effectiveness of methods based on machine learning, it is advisable to use methods based on image processing for certain specific conditions. Among the image processing methods for detecting vehicle license plates, edge analysis methods are the fastest. At the same time, you can use the properties of the wavelet transform to analyze the edges. This is the basis of the approach proposed by the authors, which provides for the use of a weight model based on the coefficients of the multiple-scale orthogonal Haar wavelet transform. As a result of building such a model, weights are calculated that reflect the significance of the pixels of the original image for the analysis of the edges when searching for the area of the vehicle number. The weight model allows you to emphasize the characteristics of the vehicle number area in the image and use additional processing to find its location. The advantages of the proposed approach include simplicity in implementation, the detection of vehicle numbers in images obtained under various conditions, and the possibility of supplementing it with operations that ensure increased efficiency at all stages. © 2021 IEEE.

关键词： Wavelet transforms

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Object Detection Using Color Segmentation, Radial Symmetry Detector, and Hough Method

Object Detection Using Color Segmentation, Radial Symmetry D...

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2021 International Russian Automation Conference, RusAutoCon 2021

作者： Shakirzyanov, Rinat M. Shakirzyanova, Alina A. Kazan National Research Technical University Named after A. N. Tupolev-KAI Department for Applied Mathematics and Informatics Kazan Russia Kazan National Research Technical University Named after A. N. Tupolev-KAI Department for Automated Systems for Information Processing and Control Kazan Russia

ISBN: (纸本)9780738131566

Currently, unmanned control systems for various vehicles, including cars, are widely used. Driving an unmanned vehicle involves solving tasks related to recognizing road objects. An improved algorithm for solving the problem of detection and recognition of round traffic light signals is proposed. To solve this problem, we use: fast radial symmetry transformation, Hough transform, and color segmentation. A special feature of the algorithm is that the areas where the light signals are located they are preliminarily determined based on the color attribute, followed by specifying the shape and position of objects. At the final stage, the solution is refined using the Hough method. The proposed algorithm has shown operability, it can be expanded in terms of the types of recognized signals and applied as part of unmanned vehicle control systems, as well as part of driver assistance systems for solving problems related to the prevention of dangerous and emergency situations. © 2021 IEEE.

关键词： Computer vision

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Image compression method based on analysis of energy features

Image compression method based on analysis of energy feature...

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2021 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2021

作者： Lyasheva, M. Lyasheva, S. Shleymovich, M. Department for Automated Systems for Information Processing and Control Kazan National Research Technical University named after A. N. Tupolev-KAI Kazan Russia Department for Applied Mathematics and Informatics Kazan National Research Technical University named after A. N. Tupolev-KAI Kazan Russia

ISBN: (纸本)9781728145877

Currently, many information processing and control systems are based on computer vision technologies. Among the many problems that need to be solved in such systems, it is important to reduce the redundancy of information in the image. To solve this problem, various methods of image compression are used, including those based on the wavelet transform. This paper is devoted to one of these methods. The proposed method is based on the calculation and analysis of energy features, which allow us to assess the significance of the detailing coefficients for the representation of the image in a compressed form. As a result of its application, a matrix of approximating coefficients of the initial level, significance maps and sets of significant detailing coefficients of various levels of the wavelet transform are formed. To improve the compression quality, significant detailing coefficients are normalized. In addition, you can apply entropy coding for each level of data. The described method is simple to implement and provides flexible parameter settings to obtain the required image compression quality indicators. © 2021 IEEE.

关键词： Wavelet transforms

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Image Weight Models Based on Discrete Wavelet Transforms

Image Weight Models Based on Discrete Wavelet Transforms

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2021 International Russian Automation Conference, RusAutoCon 2021

ISBN: (纸本)9780738131566

The paper describes an approach to constructing image models using discrete wavelet transforms. The models under consideration reflect the importance of pixels in terms of their contribution to the total energy. In this case, each pixel is associated with a certain numeric value - weight. To obtain the weights, the detailed coefficients of the wavelet transform are analyzed, which reflect the magnitude of the brightness change in the corresponding pixels at different scale levels. It is assumed that the more the brightness changes in a pixel, the more this pixel differs from other pixels and the more important it is for image analysis. The values of the weights depend on the type of the wavelet transform. In this paper, we consider orthogonal Daubechi 2, 4, 6, 8 wavelet transforms and biorthogonal Villasenor-Belzer-Liao 6/10, 5/3, 2/6, 9/3 wavelet transforms. The application of weight models based on the specified wavelet transformations for the selection of ure features of images is described. © 2021 IEEE.

关键词： Image representation

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Multi-Agent Economic Modeling Automation Technologies

Multi-Agent Economic Modeling Automation Technologies

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International Conference on control, Decision and Information Technologies (CoDIT)

作者： Aleksandra A. Zhukova Nikolai P. Pilnik Ivan G. Kamenev Batyrzhan B. Iusup-Akhunov Department of Mathematical Modelling in Economic Social and Ecological Systems Federal Research Center “Computer Science and Control” of the Russian Academy of Sciences Moscow Russian Federation Department of Mathematical Modelling of Economic Systems Federal Research Center “Computer Science and Control” of the Russian Academy of Sciences Moscow Russian Federation Department of Applied Economics Faculty of Economic Sciences HSE University Moscow Russian Federation Department of Fundamental Sciences-11 FSBEIHE Bauman Moscow State Technical University Moscow Russian Federation The Phystech School of Applied Mathematics and Informatics Moscow Institute of Physics and Technology Moscow Region Russian Federation

Complex economic models often describe the agent's decisions, i.e. choice of some controlled variables in accordance with criteria set by agents. Unlike purely statistical ones, agent-based models allow to describe processes with different modes, in which the agent's behavior changes quali-tatively when the environment (including the actions of other agents) change. The practical use of mathematical models of complex systems with a number of interacting agents is limited by complexity of their construction and possible errors when dealing with multitude of expressions. Computer tools, such as the “Ecomod” system discussed in the article, can substantially reduce the time spent on model creation and processing, and help to coordinate the work of several researchers on the model.

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