Кафедри
Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/35393
Переглянути
11 результатів
Результати пошуку
Публікація Simulation and optimisation of business process management: case study of IT company(2024) Serhiienko, Olena; Mashchenko, Maryna; Samorodov, Borys; Babichev, Anatoliy; Klimenko, OlenaIn managing business processes of complex hierarchical systems, primary attention is given to analysing, accelerating, and optimising the basic processes typical for any company. Objectives: The goal of this work is to prove that while managing business processes, it is crucial to consider the peculiarities of the external and internal environment to determine the effects of individual triggers. Method: An example of business process analysis was provided regarding the peculiarities of managing IT service companies operating in a dynamic environment of rapid technological changes. The business processes analysis of IT service companies in Ukraine was conducted. Business process groups characterised by low use of labour and financial resources and excessive and high levels of risk management were determined. Results: An algorithm for optimising the IT company's business processes was developed. Simulation and optimisation models for managing IT company business processes were developed using scenario modelling and simulation techniques. Conclusion: Based on these models, a predictive evaluation of management impacts on business processes was conducted, representing individual clusters according to defined management strategies.Публікація Investigation of modern investment opportunities with cryptocurrency market: optimization(2024) Chernova, Natalia; Serhiienko, Olena; Bril, Mykhailo; Bilotserkivskyi, Oleksandr; Kochorba, ValeriiaThe research aim is to study effects of cryptocurrencies inclusion into an in vestment portfolio. To achieve the aim, portfolios with different composition of traditional and crypto assets are to be formed and compared. Methodology. It is proposed to conduct the following steps of the appropriate algorithm of investigating modern opportunities with cryptocurrency market: 1) preliminary analysis of the relationships and interdependencies between traditional assets and crypto assets; 2) formation of the initial set of crypto assets that can be potentially included into portfolio; 3) efficient frontier assessment for portfolios with different initial composition of assets; 4) comparative assessment and result analysis. Findings. The algorithm was implemented for the initial set of five most common traditional assets and ten cryptocurrencies. The latter constituents list was formed according to the value of market capitalization. Than the initial set of crypto assets was reduced according to their multidimensional distances from traditional assets. The results obtained allow to conclude that there are opportunities of portfolio efficiency increase via crypto assets inclusion in its structure. The increase value varies noticeably and depends on the particular kind of crypto assets, their total share and number. Originality. This research suggests to conduct additional preliminary procedures to choose potential candidates to be included into the traditional portfolio among initial set of crypto assets. Firstly, market capitalization value and low correlations with traditional portfolio constituents are taken into account. Secondly, all assets are presented as points in two-dimensional risk-return space and crypto assets are chosen according to the multidi mensional distance measure value.Публікація Model for Predictive Analysis of International Trade Based on the Dynamics of Stock Indices (Example of Data from the USA, Canada and UK)(2022) Rudenko, Diana; Serhiienko, Olena; Zeleniy, Oleksandr; Lyashenko, VyacheslavForecasting is one of the tools for assessing the functioning and development of processes, phenomena, objects. This tool has found its application in all areas of research. Among these areas of research, one should single out the direction that is associated with the economy. This is important because such studies help to assess the level of economic development, the welfare of mankind, to find ways for the further functioning and development of various processes, phenomena, objects. To solve the tasks set, various models are used that help to implement a certain forecast scheme. At the same time, the construction of such models involves the implementation of the corresponding stages of modeling. Such modeling steps help determine the type of the final model and implement the required predictive model. Therefore, we pay special attention to the individual stages of predictive modeling. The efficiency of building a predictive model is also determined by the applied problem that needs to be solved in the modeling process. In this paper, we consider the elements of a predictive model for the analysis of international trade. To do this, we use data on the dynamics of stock indices. In particular, we use the dynamics of stock indices, which describe the activities of banking institutions. To build individual elements of the predictive model, we use the apparatus of wavelet theory. Among the tools of wavelet theory, we use wavelet coherence. We also propose an approach for comparing different estimates of wavelet coherence. This approach is based on comparing the corresponding wavelet coherence estimates and visualizing the results. This allows you to better understand the mutual dynamics of stock indices and evaluate the dynamics of international trade. The paper presents various graphs and diagrams that help to understand the logic of the study and the results obtained.Публікація Improvement of financial instruments of the agricultural sector and food security efficiency increasing(Economic Research Institute at BAS (Bulgarian Academy of Sciences), 2023) Serhiienko, Olena; Tatar, Maryna; Guryanova, Lidiya; Shapran, Olena; Bril, MykhailoThe methodical toolbox of lending to entities in the agricultural sector provides three levels of hierarchy management interaction – macro, meso and micro levels (state – region – agricultural enterprises) on the bases of the complex usage of economic and mathematical models and which contains six interrelated and sequential blocks was proposed. The method of agricultural enterprises crediting improvement is implemented in accordance with the strategic position of lending to agricultural enterprises through targeted support and the creditworthiness level, which can solve the following problems: observation and evaluation of the financial and economic indicators; classification of enterprises, recognition, and identification of enterprises in terms of creditworthiness; assessment of the differences between classes given dimension enterprises.Публікація Assessing the Economic and Technical Effectiveness of Intercepting UAVs Using Alternative Methods(2023) Pohasii, Serhii; Mashchenko, Maryna; Serhiienko, Olena; Klimenko, Olena; Andriushchenko, Tetiana; Milevska, TetianaThe study explores the various methods and technologies employed in intercepting unmanned aerial vehicles (UAVs). It highlights the use of UAV interceptors, specifically those utilizing the kamikaze scenario, which have demonstrated effectiveness in conflicts such as the war in Ukraine. The research investigates the technical and economic aspects of combating UAVs, particularly reconnaissance and kamikaze UAVs equipped with various types of ammunition. Cost analysis and technical characteristics of commonly used kamikaze UAVs are examined. This study provides valuable insights into the challenges and potential solutions in countering UAV threats.Публікація Strategizing directions of financial aspect development in the corporate security system of an industrial enterprise(Fintechalliance LLC, 2023) Serhiienko, Olena; Volosnikova, Natalia; Yehorova, Yulia; Makarchuk, Kateryna; Sokolova, NataliaThe article develops and substantiates the concept of the financial strategy of the corporate insurance system. The scheme of formation of the financial strategy of corporate security at an enterprise is analyzed. It is proven that an important criterion for ensuring the effectiveness of the financial strategy of an enterprise corporate security system is to detail and specify its functions, which are divided into two components: the processes of formation and use of enterprise financial resources. It is emphasized that in order to implement an effective strategy for achieving competitive advantages, it is necessary to ensure the appropriate level of management system development which is capable of ensuring the integration of functional areas of its activity. The achievement of interaction and coherence of implemented measures in each of the areas of an enterprise activity should be coordinated according to the general strategy. It has been confirmed that the economic effect plays an important role in the economic development of the corporate security system. In addition, the requirement of consistency of material, financial, information and other types of resource flows of integrated logistics processes at enterprises is particularly relevant. We made the conclusion that one of the tasks of the corporate security system in terms of financial resource provision management is tracking the intensity and targeting of resource provision flows, forecasting costs and benefits when achieving mutual goals of both the corporate security system and local elements of corporate security.Публікація Analysis of the dynamics of Europe stock markets development(Fintechalliance LLC, 2023) Serhiienko, Olena; Bril, Mykhailo; Baranova, Valeria; Tatar, Maryna; Bilotserkivskyi, OleksandrThe article proposes a complex of economic and mathematical models of assessment, analysis, and forecasting of the world stock indices development state for effective management of investment flows. The modern concept and strategy of European countries’ stock market development were considered, and the existing methods of diagnosing the stock market development level were analyzed. ARIMA models were built and spectral analysis of the main world indices was carried out. The possible trends in the stock indices development for the future period were analyzed using predictive models. It makes it possible to determine directions for improving the stock market efficiency and investment strategies in modern conditions.The proposed set of models for evaluation, analysis, and forecasting of the world stock indices state can be used to test various trading strategies and to test various hypotheses in relation to the entire stock portfolio of a particular company or to one stock index. The results of the research can be used in the development of theoretical provisions and methodological tools for evaluating the global stock market effectiveness in modern conditions and development trends in local markets.Публікація Strategizing directions of financial aspect development in the corporate security system of an industrial enterprise(TOV "Fintehalyans", 2023) Serhiienko, Olena; Volosnikova, Natalia; Yehorova, Yulia; Makarchuk, Kateryna; Sokolova, NataliaThe article develops and substantiates the concept of the financial strategy of the corporate insurance system. The scheme of formation of the financial strategy of corporate security at an enterprise is analyzed. It is proven that an important criterion for ensuring the effectiveness of the financial strategy of an enterprise corporate security system is to detail and specify its functions, which are divided into two components: the processes of formation and use of enterprise financial resources. It is emphasized that in order to implement an effective strategy for achieving competitive advantages, it is necessary to ensure the appropriate level of management system development which is capable of ensuring the integration of functional areas of its activity. The achievement of interaction and coherence of implemented measures in each of the areas of an enterprise activity should be coordinated according to the general strategy. It has been confirmed that the economic effect plays an important role in the economic development of the corporate security system. In addition, the requirement of consistency of material, financial, information and other types of resource flows of integrated logistics processes at enterprises is particularly relevant. We made the conclusion that one of the tasks of the corporate security system in terms of financial resource provision management is tracking the intensity and targeting of resource provision flows, forecasting costs and benefits when achieving mutual goals of both the corporate security system and local elements of corporate security.Публікація Modern blockchain and web3.0 information technologies within the HealthHelper startup(Одеський національний морський університет, 2023) Samus, P. O.; Serhiienko, OlenaПублікація Theory of NFT-contracts in healthcare: a case study of HealthHelper startup(Національний технічний університет "Харківський політехнічний інститут", 2023) Samus, P. O.; Serhiienko, Olena