Національний юридичний університет імені Ярослава Мудрого ⚖ Головна ⓘ Довiдка
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Загальна кількість знайденихдокументів : 8
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1.
Yevseiev, S.
    Development and analysis of gametheoretical models of security systems agents interaction [Текст] / S. Yevseiev, O. Milov, S. Milevskyi, O. Voitko, M. Kasianenko, Y. Melenti, S. Pohasii, H. Stepanov, O. Turinskyi, S. Turinskyi // Eastern-European Journal of Enterprise Technologies. - 2020. - Vol. 2. Issue 4. - P. 15-29
   Перевод заглавия: Разработка и анализ теоретико-игровых моделей взаимодействия агентов систем безопасности
УДК
ББК З81
РУБ DOI: https://doi.org/10.15587/1729-4061.2020.201418

Аннотация: A game-theoretic approach is presented, which claims to be a universal method for solving most problems in the field of cybersecurity. As arguments to confirm the superiority of game theory, mathematical validity and provability of the optimality of decisions made, unlike the widely used heuristics, the possibility of developing reliable protection based on analytical results, ensuring a timely response to cyberattacks in conditions of limited resources, as well as distributed nature of decision making are highlighted. The definitions of the basic concepts used in security tasks based on game-theoretic models are introduced. The features of the application of game theory methods in the field of cybersecurity are listed and the limitations of research in this area are formulated, namely: a restriction on game strategies, simultaneous moves of players in the behavior patterns of security system agents, uncertainty in the time the players take the move, uncertainty in the final goal of the enemy, unpredictability of further player moves, lack of players’ assessment of enemy resources. as well as its ultimate goals, the inability to timely assess the current state of the game. The game-theoretic models are aligned with the listed security problems, and the main solutions obtained as a result of using the corresponding models are also determined. Many methods of game theory have been formed, for each of which a relationship is determined between the game model, its scope, simulation result and security services that the method under consideration supports. The limitations of the classical representation of game theory models are determined, the need to overcome which follows from the requirements for providing basic security services. Such limitations include: the ability of the defender to detect attacks, the certainty of the probabilities of a change of state before the start of the game, the synchronism of the players’ moves, the inability to scale the model due to the size and complexity of the system under consideration. Models of the main tasks of the interaction of antagonistic agents of security systems have been developed. The resulting models made it possible to obtain solutions to two of the most common tasks in the field of cybersecurity, namely, the interaction of the system administrator and the attacker in organizing the protection of information resources. The tasks are solved for various conditions – the game matrix contains cost estimates of resources and the matrix reflects the probability of threat realization. Pure and mixed strategies are defined for various initial conditions, which allows to exclude from the consideration strategies that are not included in the solution. A synergistic approach to the use of game-theoretic modeling was formed taking into account the behavior of agents of security systems, based on an analysis of the diversity and characteristics of game-theoretic models, their inherent limitations and scope

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2.
Pospelov, B. .
    Devising a self-adjusting zero-order Brown’s model for predicting irreversible processes and phenomena [Текст] / B. Pospelov, V. Andronov, E. Rybka, O. Krainiukov, N. Maksymenko, I. Biryukov, M. Zhuravskij, Y. Bezuhla, I. Morozov, I. Yevtushenko // Eastern-European Journal of Enterprise Technologies. - 2021. - Vol. 5, No. 10 (113). - P. 40-47
   Перевод заглавия: Разработка самонастраивающейся модели брауна нулевого порядка для прогнозирования необратимых процессов и явлений
УДК
РУБ DOI: https://doi.org/10.15587/1729-4061.2021.241474

Аннотация: A self-adjusting zero-order Brown’s model has been devised. This model makes it possible to predict with high accuracy not only fires in the premises but also irreversible processes and phenomena of a random and chaotic nature under actual conditions. The essence of the self-adjusting model is that, based on Kalman’s approach, it is proposed to set the smoothing parameter for each time moment. Such a parameter is determined depending on the resulting current forecast error, taking into consideration the real and unknown dynamics of the studied series and noise. That does not require the selection of the smoothing parameter characteristic of known models. In addition, the proposed Brown’s model, unlike the known modifications, does not require setting a dynamics model of the level of the examined time series. The self-adjusting model provides negli gible errors and efficiency of the forecast. The operability of the devised model was checked using an example of the experimental time series for the current measure of the recurrence of the increments of the state of the air medium in the laboratory chamber during alcohol combustion. As quantitative indicators of the quality of the forecast error, the current values for the square and absolute values were considered. It has been established that the current square of the forecast error is more than six orders of magnitude smaller compared to the case of a fixed smooth-ing parameter from a beyond-the-limit set. However, the current square of the forecast error for abrupt changes in the dynamics of the series level is half that of the fixed parameter of the beyond-the-limit set. It is noted that the results confirm the feasibility of the proposed self-adjusting Brown’s model.

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3.
Yevseiev, S. .
    Development of a method for assessing forecast of social impact in regional communities [Текст] / S. Yevseiev, Y. Ryabukha, O. Milov, S. Milevskyi, S. Pohasii, Y. Ivanchenko, I. Ivanchenko, Y. Melenti, I. Opirskyy, I. Pasko // Eastern-European Journal of Enterprise Technologies. - 2021. - Vol. 6, Iss. 2 (114). - P. 30-43
   Перевод заглавия: Розробка методики оцінки прогнозу соціального впливу в регіональних громадах
УДК
РУБ DOI: 10.15587/1729-4061.2021.249313

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4.
Korol, V. .
    Elaboration of recommendations on the development of the state internal audit system when applying the digital technologies [Текст] / V. Korol, O. Dmytryk, O. Karpenko, V. Riadinska, O. Basiuk, D. Kobylnik, V. Moroz, O. Safronova, E. Alisov, T. Mishchenko // Eastern-European Journal of Enterprise Technologies. - 2022. - Vol. 1, Iss. 13. - P. 39-48
   Перевод заглавия: Розробка рекомендацій щодо розвитку системи державного внутрішнього аудиту при застосуванні цифрових технологій
УДК
РУБ DOI: 10.15587/1729-4061.2022.252424

Аннотация: Recommendations for the development of a state internal audit system in conditions of using digital technologies have been elaborated. It was established that the procedures of conducting state internal audits change under influence of digitization. Conformity of the stages of audit digitization and the applied digital technologies was established. Foreign experience in the digitization of the state internal audit was analyzed. It was also established that the active application of artificial intelligence technologies may be one of the probable scenarios of the development of the state internal audit system in foreign countries in the near future. Types of digital technologies were systematized depending on the field of state internal audit. It was found that the maximum effect from the use of digital technologies in the field of audit will take place in the case of their synergistic combination. Coordinated interaction between constituent elements of the state internal audit has been established. This has made it possible to present the process of development of the state internal audit system in conditions of digitization and determine its main objective: ensure greater transparency and efficiency of accounting for tangible assets by means of new digital technologies. Taking into account the above, a mechanism of development of the system of state internal audit in conditions of use of digital technologies was offered. It is based on corresponding directions and measures. It was established that to assess the efficiency of development of the state internal audit system in conditions of application of digital technologies, it is advisable to use the indicators reflecting overall results of measures taken in state financial control. The application of the proposed mechanism will make it possible to establish the effect of digital technologies on the development of the state internal audit.

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5.
Yevseiev, S. .
    Development of a method for assessing the security of cyber-physical systems based on the Lotka–Volterra model [Text] / S. Yevseiev, S. Pohasii, S. Milevskyi, O. Milov, Y. Melenti, I. Grod, D. Berestov, R. Fedorenko, O. Kurchenko // Eastern-European Journal of Enterprise Technologies. - 2021. - Vol. 5, No. 9 (113). - P. 30-47
   Перевод заглавия: Разработка метода оценки безопасности киберфизических систем на основе модели Лотки–Вольтерры
УДК
РУБ DOI: 10.15587/1729-4061.2021.241638

Аннотация: The paper presents the results of the development of a method for assessing the security of cyber-physical systems based on the Lotka-Volterra model. Security models of cyber-physical systems are proposed: “predator-prey” taking into account the computing capabilities and focus of targeted cyberattacks, “predator-prey” taking into account the possible competition of attackers in relation to the “prey”, “predato-prey” taking into account the relationships between “prey species” and “predator species”, “predator-prey” taking into account the relationship between “prey species” and “predator species”. Based on the proposed approach, the coefficients of the Lotka-Volterra model α=0.39, β=0.32, γ=0.29, φ=0.27 were obtained, which take into account the synergy and hybridity of modern threats, funding for the formation and improvement of the protection system, and also allow determining the financial and computing capabilities of the attacker based on the identified threats. The proposed method for assessing the security of cyber-physical systems is based on the developed threat classifier, allows assessing the current security level and provides recommendations regarding the allocation of limited protection resources based on an expert assessment of known threats. This approach allows offline dynamic simulation, which makes it possible to timely determine attackers' capabilities and form preventive protection measures based on threat analysis. In the simulation, actual bases for assessing real threats and incidents in cyberphysical systems can be used, which allows an expert assessment of their impact on both individual security services and security components (cyber security, information security and security of information). The presented simulation results do not contradict the graphical results of the classical Lotka-Volterra model, which indicates the adequacy of the proposed approach for assessing the security of cyber-physical systems.

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6.
Yagup, V.
    Analysis and optimization of the reactive power compensation modes in a power supply system [Text] / V. Yagup, K. Yagup, Y. Kovalova, V. Valeriy Yagup, Katerina Yagup, Yuliia Kovalova, Viktor Kharchenko, Tetiana Besarab, Oleksii Krasnov, Illya Domanskii, Vasilii Domanskii, Hennadii Kostin, Haidar Gafar AbuGoukh // Eastern-European Journal of Enterprise Technologies. - 2019. - Vol. 3, Issue: 8-99. - P. 13-22
   Перевод заглавия: Анализ и оптимизация режимов компенсации реактивной мощности в системе электроснабжения
ББК З2

Аннотация: Представлено дослiдження режимiв в однофазнiй узагальненiй системi електропостачання в аспектi пiдвищення енергетичних показникiв в системi шляхом компенсацiї реактивної потужностi. Розглянутi три тестових варiанта системи електропостачання з рiзними спiввiдношеннями комплексних опорiв навантаження та лiнiї електропередачi. Показанi недолiки традицiйного методу розрахунку параметрiв компенсуючого пристрою, якi забезпечують часткову компенсацiю реактивної потужностi, що споживається лише навантаженням. Аналiз режиму часткової компенсацiї свiдчить про те, що зi збiльшенням реактивностi лiнiї електропередачi погiршуються енергетичнi показники, якi вдається отримати в результатi компенсацiї реактивної потужностi. З застосуванням пошукової оптимiзацiї показано, що для повної компенсацiї потрiбне збiльшення ємностi компенсатора. Метод пошукової оптимiзацiї реалiзований в пакетi програм комп'ютерної математики MathCAD за допомогою вирiшального блоку givenfind. Для цього використовуються рiвняння математичної моделi системи електропостачання на основi компонентних i топологiчних рiвнянь. В якостi додаткових умов використанi спiввiдношення, що визначають повну компенсацiю реактивної потужностi живильного джерела, а також умови фiзичної можливостi бути реалiзованим структури компенсуючого пристрою. Перемiнними оптимiзацiї є параметри дослiджуваного режиму i параметри компенсуючого пристрою. Представленi фрагменти текстiв програм з числовими результатами розв’язань, а також порiвняльнi таблицi результатiв аналiзу i оптимiзацiї режимiв компенсацiї реактивної потужностi в дослiджуваних системах електропостачання для всiх варiантiв їх параметрiв. Данi кiлькiснi оцiнки величини додаткової ємностi, яка обчислюється виходячи з умови компенсацiї нею реактивної потужностi в лiнiї електропередачi. Дослiдження, що проведенi в роботi, показали, що при збiльшеннi реактивного опору лiнiї електропередачi повна компенсацiя не може бути досягнута iз застосуванням поперечної компенсацiї i цьому явищу дана фiзична трактовка. Вона полягає в тому, що напруга на компенсуючому поперечному конденсаторi зменшується швидше, нiж зростає компенсована ним реактивна потужнiсть лiнiї електропередач. Показано, що в останньому випадку повна компенсацiя реактивної потужностi все ж може бути досягнута застосуванням комбiнованої поздовжньо-поперечної компенсацiї.

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7.
Momot, T. .
    Intellectual property assessment: development of information and methodological support in conditions of limited information [Текст] = Оцінка інтелектуальної власності: розробка інформаційно-методичного забезпечення в умовах обмеженої інформації / T. Momot, M. Karpushenko, S. Prylypko, N. Myschinska, D. Momot // Eastern-European Journal of Enterprise Technologies. - 2021. - Vol. 1, No. 13 (109). - P. 48-63
УДК
РУБ DOI: 10.15587/1729-4061.2021.225772

Аннотация: Assessment of intellectual property is an important process of commercialization of scientific and technical developments of enterprises of all forms of ownership. This is carried out to determine the value of intellectual property objects (IPO) in connection with the transfer of ownership (purchase, sale) to the corresponding object, the conclusion of a license agreement for the IPO use, accounting for IPO in accounting, contributed to the authorized capital, etc. Under such conditions, the problem of IPO underestimating significantly reduces the efficiency and effectiveness of enterprises. At the same time, the uniqueness of many types of intellectual assets and the impossibility of their visual assessment determine the expediency of systematizing methodological approaches to assessing the value of intellectual property assets to ensure an objective assessment of the value of intellectual property. This will help increase the profitability and business value of the enterprise. The aim of research is to develop theoretical and methodological provisions and substantiate practical recommendations for improving information and methodological support for assessing the value of intangible assets, taking into account the requirements of regulatory documents and the availability of the necessary information. Based on the results of the study, methodological approaches to determining the value of intangible assets are systematized. According to the financial statements, the value of intangible assets of the leading enterprises of Ukraine and their share in the total value of assets were analyzed. The features of the assessment of intangible assets in accordance with accounting standards have been determined, a methodological approach to the assessment of the value of intellectual property has been developed, it allows to reasonably choose a method for assessing IPO based on the analysis of available information. It is proved that the lack of objective information on the value of IPO significantly reduces the value of assets of Ukrainian enterprises in comparison with the leading companies in the world, reduces their investment attractiveness and does not contribute to economic development.

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8.
Yevseiev, S. .
    Development of a Concept for Building a Critical Infrastructure Facilities Security System [Text] / S. Yevseiev, Y. Melenti, O. Voitko, V. Hrebeniuk, A. Korchenko, S. Mykus, O. Milov, O. Prokopenko, O. Sievierinov, D. Chopenko // Eastern-European Journal of Enterprise Technologies. - 2021. - Vol. 3. - P. 63-83
   Перевод заглавия: Розробка концепції побудови системи безпеки об'єктів критичної інфраструктури
ББК Х621.162
РУБ DOI 10.15587/1729-4061.2021.233533

Аннотация: To effectively protect critical infrastructure facilities (CIF), it is important to understand the focus of cybersecurity efforts. The concept of building security systems based on a variety of models describing various CIF functioning aspects is presented. The development of the concept is presented as a sequence of solving the following tasks. The basic concepts related to cyberattacks on CIF were determined, which make it possible to outline the boundaries of the problem and determine the level of formalization of the modeling processes. The proposed threat model takes into account possible synergistic/emergent features of the integration of modern target threats and their hybridity. A unified threat base that does not depend on CIF was formed. The concept of modeling the CIF security system was developed based on models of various classes and levels. A method to determine attacker's capabilities was developed. A concept for assessing the CIF security was developed, which allows forming a unified threat base, assessing the signs of their synergy and hybridity, identifying critical CIF points, determining compliance with regulatory requirements and the state of the security system. The mathematical tool and a variety of basic models of the concept can be used for all CIFs, which makes it possible to unify preventive measures and increase the security level. It is proposed to use post-quantum cryptography algorithms on crypto-code structures to provide security services. The proposed mechanisms provide the required stability (230–235 group operations), the rate of cryptographic transformation is comparable to block-symmetric ciphers (BSC) and reliability (Perr 10–9–10–12)

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Умовні позначення місця знаходження

3_пов.(ЗПІ) – зала правової інформації, НБК

4_пов.(НАб) – абонемент наукової літератури, НБК

4_пов.(ДБФ) – довідково-бібліографічний фонд, НБК

5_пов.(З/П) – зала періодичних видань, НБК

6_пов.(АХЛ) – абонемент художньої літератури, НБК

6_пов.(ЗІЛ) – зала літератури іноземними мовами, НБК

7_пов.(Хр) – книгосховище, НБК

8_пов.(РК) – книгосховище рідкісних видань та дисертацій, НБК

НБВ – інформаційно-бібліографічний відділ, НБК, 7 поверх

Ст.Аб. – студентський абонемент, НБК, 5 поверх

Філ №1 – філія № 1 (вул. Динамівська, 4)

Філ №2 – філія № 2 (вул. Пушкінська, 106)

Полт. фак. – Полтавський юридичний інститут, м. Полтава