Segmentation of the chorus of the eye fund in a digital image Ceur Workshop Proceedings, 2024
Performance and Accuracy Assessment of Detecting Network Intrusions with eSOM-Based Techniques Dimitrios Simeonidis, Pavel Petrov, Georgi Penchev, Stefka Petrova, Georgi Dimitrov, Volodymyr Petrivskyi International Conference Automatics and Informatics Icai 2024 Proceedings, 2024 In this study are provided results about performance evaluation of Emergent Self-Organizing Map-based Intrusion Detection System in simulated wireless network environment. The experiment included detection of various network intrusions, including DoS, Probe, R2L, and U2R attacks. The results show that DoS (95%) and Probe (88%) attacks had the higher detection rates, while R2L (75%) and U2R (70%) attacks had the lower detection rates. The evaluated system demonstrated a low false positive rate of 5% and quick response times for overt attacks (2 seconds), though response times increased for covert attacks (4 seconds). During the experiment, the amount of used calculation resources was considerably high - the average CPU utilization was 70% and 80%, respectively. The results show that in order to effectively use this type of Intrusion Detection System for real company network security, there is need for further optimization.
Regularity of Geotechnological Formation of the Area of Weakened Connections in the Rock Mass Ceur Workshop Proceedings, 2023
Basic Scenario Reports and Information Algorithms Intelligent System of Financial Monitoring Ceur Workshop Proceedings, 2023
Complex System for Radio Location Field Quality Assessment Ceur Workshop Proceedings, 2023
Historiographical Study of the Evolution of the Geocoding Systems with Equiangular Tessellation Pavel Petrov, Radka Nacheva, Jordan Jordanov, Georgi Dimitrov, Oleksii Bychkov, Volodymyr Petrivskyi 7th International Symposium on Multidisciplinary Studies and Innovative Technologies Ismsit 2023 Proceedings, 2023 The study aims to summarize the key turning points in the development of certain fundamental geocoding techniques developed over the last decades. In the study is used historical and historiographical method by extensively relying on the historical records available at Internet archive website archive.org. This approach gives the opportunity to access web site information published in the past, but not available nowadays due to different circumstances. As a result, several similarities in the development of the studied geocoding systems are identified. Comparing the features of different geocoding systems using historiographical techniques throws new light on the study of geocoding systems. Because it has been discovered that modern geocoding systems are based on older ones, this research may aid in the development of new geocoding systems in the future.
Proving the Existence of Solutions to the Problems of Minimizing the Energy Consumption of Sensor Networks Volodymyr Petrivskyi, Oleksii Bychkov, Vasyl Martsenyuk Applied Sciences Switzerland, 2022 Sensors and sensor networks have become widespread in today’s technological world. As with any technical system, sensors and sensor networks face certain challenges, one of which is the problem of energy efficiency, the solution of which allows for increasing the autonomy of sensors and making the network more cost-effective. This problem is relevant, and there are many studies devoted to its solution. In some of the proposed solutions, this problem is formulated as an optimization problem. However, in most cases, there is no proof of the existence of a solution to the presented optimization problem, which in turn calls into question the correctness of the proposed approaches. The article presents proof of the existence of a solution to the problem of minimizing the energy consumption of a sensor network by adjusting the sensor coverage radii. The work also proves the existence of a solution to a multi-criteria optimization problem, the criteria of which are the minimization of the network cost and the maximization of the area of the covered territory. An analysis of the energy efficiency of the network was carried out in cases of different values of the intersection of coverage zones and different values of the level of the intersection of coverage zones. Using the described approaches, the energy consumption of a specific sensor network was reduced by 7%, which confirms the effectiveness of the presented methods.
A Method for Maximum Coverage of the Territory by Sensors with Minimization of Cost and Assessment of Survivability Volodymyr Petrivskyi, Oleksii Bychkov, Viktor Shevchenko, Vasyl Martsenyuk, Marcin Bernas Applied Sciences Switzerland, 2022 In the modern technological world, there are several key factors in the construction of sensor networks. These include maximizing the coverage and minimizing the cost of the network. Like any information system, the sensor network must also meet the conditions of survivability. This is why the development of a method for assessing the survivability of the sensor network is also a key factor. The purpose of this study is to develop a method to establish the maximum coverage of the territory of the sensor network at minimum cost with the ability to assess the survivability of the network. Coverage maximization while minimizing the network’s cost is achieved by finding the optimal pair of values of the coverage radius and the level of the intersection of coverage areas. These values are found by solving a nonlinear multicriteria optimization problem with the use of the genetic algorithm. The designed method for estimating the survivability of sensor networks takes into account not only the importance of network components but also the bandwidth of the network elements. The result of using the proposed methods is a set of Pareto optimal pairs of values of the radii of coverage and the value of the intersection of the coverage areas. In the case of network survivability assessment, the result, in addition to the percentage assessment, is a set of vulnerable sensors and network communication channels. The proposed network survivability estimation method improved the estimation accuracy by 18% compared to methods used in previous works.
Models and Information Technology Implementation of Contact Interaction of the Edge of a Rock Cutting Tool With Granular Rocks Modeling Ceur Workshop Proceedings, 2021
INCREMENTAL TRANSFORMATION OF LEGACY INFORMATION SYSTEMS Pavel Petrov, Stoycho Stoev, Georgi Dimitrov, Rami Malkawi, Volodymyr Petrivskyi International Multidisciplinary Scientific Geoconference Surveying Geology and Mining Ecology Management Sgem, 2021
CAD technology for optimal territory covering Volodymyr Petrivskyi, Viktor Shevchenko, Oleksiy Bychkov, Maksym Brazhenenko, Pavel Petrov Experience of Designing and Application of CAD Systems in Microelectronics, 2021
Cloud based architecture design of system of systems Maksym Brazhenenko, Pavlo Kozachok, Volodymyr Petrivskyi, Oleksiy Bychkov, Victor Shevchenko Experience of Designing and Application of CAD Systems in Microelectronics, 2019
