Èlektronnoe modelirovanie最新文献

{"title":"An Ensemble Method for the Analysis of Small Biomedical Data based on a Neural Network Without Training","authors":"I. Izonin, R.O. Tkachenko, O.L. Semchyshyn","doi":"10.15407/emodel.45.06.065","DOIUrl":"https://doi.org/10.15407/emodel.45.06.065","url":null,"abstract":"To enhance the accuracy of analyzing short datasets, this paper proposes a novel ensemble learning method that utilizes a single the General Regression Neural Network (GRNN). The core idea behind this method is the synthesis of additional pairs of vectors with different signs around each current vector from the test sample. This is achieved by employing the method of random symmetric perturbations and averaging the prediction outputs for the current vector and all synthesized vectors in its vicinity. Implementing this approach leads to a significant increase in prediction accuracy for short datasets. It achieves error compensation for each pair of addi-tional vectors with different signs and also for the overall prediction result of the current vector and all additional pairs of synthetic vectors created for it. The effectiveness of the proposed method is validated through modeling on a small real-world biomedical dataset, and the optimal parameters have been selected. Comparative analysis with existing GRNN-based me¬thods demonstrates a substantial improvement in accuracy.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"10 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138982154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Work Process Efficiency in Designing Simulator Distribution Network Models","authors":"A.O. Liepatiev, I.V. Pletyanyi, V.D. Samoilov","doi":"10.15407/emodel.45.06.102","DOIUrl":"https://doi.org/10.15407/emodel.45.06.102","url":null,"abstract":"This article introduces the manual procedure for constructing a mnemonic diagram, delineating its workflow into seven distinct subprocesses. It furnishes a detailed account and organizational framework for four of these subprocesses. Additionally, a technological methodology for as-sessing the development of exercise classes is explicated, accompanied by the presentation of the algorithm governing the evaluation process. Formulas for computing both the average and total execution times of the workflow are explicitly formulated. An algorithm for implementing the experimental workflow, integral to time calculation, is devised. The article also outlines an automated workflow for mnemonic construction. A comparative analysis of the manual and automated work processes is conducted, evaluating the total time expenditures of both methods to discern their respective efficacies.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"549 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138982836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using the Wald Maximin Criterion for Risk Analysis of Hard-To-Predict Threats in the Context of Resilience","authors":"F. Korobeynikov","doi":"10.15407/emodel.45.06.031","DOIUrl":"https://doi.org/10.15407/emodel.45.06.031","url":null,"abstract":"The application of the Wald’s criterion for risk analysis and management within the context of ensuring resilience for mission-critical information systems, operations, and organizations in conditions of uncertainty is considered. The proposed method facilitates addressing risks asso-ciated with stochastic and HILF (high impact, low frequency) threats, the probability of which is challenging to predict. This approach is grounded in assessing potential damages and the cost of countermeasures concerning these types of threats. Notably, the focus is directed towards ex-amining the worst possible outcomes of the evaluated threats, reducing the need for accurate probability forecasting. Utilizing the maximin criterion allows for surpassing the constraints of the standard risk matrix, which is employed to determine the risk level by juxtaposing the threat’s probability category with the severity of its implications. Consequently, information security systems can attain heightened levels of efficiency, which, subsequently, bolsters the re-silience of the organizations they safeguard.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"119 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138982246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ontology of Goals and Objectives for Organizational Resilience","authors":"F. Korobeynikov","doi":"10.15407/emodel.45.05.067","DOIUrl":"https://doi.org/10.15407/emodel.45.05.067","url":null,"abstract":"The ontology of high-level resilience constructs in the context of building information protection systems at the organizational level is studied. The principles of interaction between these constructs and the elements of an organization’s structure and its assets, which are integral components of the resilience-building framework, are described in detail. The process of identi¬fying an organization’s critical functions and the associated risks as a foundation for constructing its resilience is highlighted. It is posited that in organizational configurations where a single entity encompasses multiple subdivisions or interconnected organizations, the resilience of the entire system cannot simply be viewed as the aggregate resilience of its constituent parts.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Software Architecture of Navigation Systems for Control Modules of Robotics","authors":"O.S. Bilokon","doi":"10.15407/emodel.45.05.103","DOIUrl":"https://doi.org/10.15407/emodel.45.05.103","url":null,"abstract":"The peculiarities of the software architecture of navigation systems of robotic control modules are considered. Particular attention is focused on the reproduced classifications of the characteristics of architectural solutions. The three-functional architecture of the Shakey robot, the architecture of R. Brooks (Subsumption), and Boltzmann's intellectual model were studied in detail. Three-level architectural system LAAS, multi-level architecture CLARAty, intelligent real-time control system CIRCA are also considered.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recognition of User Emotions Using Artificial Intelligence","authors":"V.O. Bolilyi, L.P. Sukhovirska, Yu.M. Hordiienko","doi":"10.15407/emodel.45.05.089","DOIUrl":"https://doi.org/10.15407/emodel.45.05.089","url":null,"abstract":"The article explains the face recognition process. The stages of recognition of emotions on the face and groups according to the field of application of FER are described. The main types of emotional artificial intelligence are distinguished. Seven recognized universal emotions are considered. A custom facial recognition script has been developed. Realized the functions of reading and detecting emotions live through a webcam using DeepFace.The research examines the development of the program \"Recognition of user emotions using artificial intelligence.\" The following tasks were implemented in the work: writing the function of detecting a person in a photo or video and teaching the program to distinguish different facial emotions: happiness, sadness, anger, etc., using the DeepFace and OpenCV face recognition package. The developed computer program can be used in various aspects of everyday life: provision of personalized services, health care, employment, education, public safety. The program was tested by students of higher education major 122 \"Computer science\" of the Central Ukrainian State University named after V. Vinnichenko.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"106 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical Models of the Temperature Field in Elements of Electronic Devices with Foreign Inclusion","authors":"V.I. Havrysh","doi":"10.15407/emodel.45.05.003","DOIUrl":"https://doi.org/10.15407/emodel.45.05.003","url":null,"abstract":"Linear and non-linear mathematical models for the determination of the temperature field, and subsequently for the analysis of temperature regimes in isotropic media with semi-transparent foreign inclusions that are also subject to external heat load, have been developed. To solve the nonlinear boundary-value problem, a linearizing function was introduced, using which the original nonlinear heat conduction equation and nonlinear boundary conditions were linearized, and as a result, a partially linearized second-order differential equation with partial derivatives and discontinuous and singular coefficients relative to the linearizing function and partially linearized boundary conditions was obtained. For the final linearization of the partially linearized differential equation and boundary conditions, the approximation of the temperature according to one of the spatial coordinates on the boundary surfaces of the inclusion was performed by piecewise constant functions. To solve the obtained linear boundary value problem, the Hankel integral transformation method was used, as a result of which an analytical solution was obtained, which determines the introduced linearizing function. For the numerical analysis of temperature behavior and heat exchange processes caused by external heat load, software tools have been developed, which are used to create a geometric image of temperature distribution depending on spatial coordinates. The obtained results indicate the correspondence of the developed mathematical models of the analysis of heat exchange processes in heterogeneous media with external heating to a real physical process. The obtained results indicate the correspondence of the developed mathematical models of the analysis of heat exchange processes in heterogeneous media with external heating to a real physical process. The developed models make it possible to analyze environments with foreign elements under external thermal loads regarding their thermal resistance. As a result, it becomes possible to increase it and protect it from overheating, which can cause the destruction of not only individual elements, but also the entire structure.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cybersecurity of Critical Infrastructure in Ukrainian Legislation and in Directive (EU) 2022/2555","authors":"V.Yu., Zubok, A.V. Davydiuk, T.M. Klymenko","doi":"10.15407/emodel.45.05.054","DOIUrl":"https://doi.org/10.15407/emodel.45.05.054","url":null,"abstract":"The article presents industries, sectors and the main criteria for determining critical facilities cyber security of which is subject to special control, in particular, by state authorities. World-known approaches to defining critical infrastructure and requirements for its cyber security are also presented. The main provisions of Directive (EU) 2022/2555, known as NIS2, and its differences from the previous NIS directive are analyzed. The classification of facilities, industries and sectors with special cyber security control are shown. The expansion in relation to previous provisions was considered for comparison with Ukrainian legislation and practice in order to further assess the scope and directions of work on the harmonization of Ukrainian legal acts with documents of the European Union.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Problems and Prospects of Implementing Assessment of the Level of Maturity of Cyber Security Processes of Critical Infrastructure Objects of the Energy Sector of Ukraine in Accordance with the NIST Cybersecurity Framework","authors":"M.M. Chaikin","doi":"10.15407/emodel.45.05.081","DOIUrl":"https://doi.org/10.15407/emodel.45.05.081","url":null,"abstract":"Existing problems regarding compliance with requirements in the field of cyber security of Ukraine's critical infrastructure in the energy sector, prospects for the implementation of the NIST Cybersecurity Framework and ways to solve the identified problems are described. The Ukrainian legislative framework was analyzed and compared with European and American practices, and the issue of compliance with the requirements of the legislation of various jurisdictions was determined.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Classification of Models of Two-component Mixtures of Symmetrical Distributions with Zero Kurtosis Coefficient","authors":"A.I. Krasilnikov","doi":"10.15407/emodel.45.05.020","DOIUrl":"https://doi.org/10.15407/emodel.45.05.020","url":null,"abstract":"On the basis of a family of two-component mixtures of distributions, a class K of symmetric non-Gaussian distributions with a zero kurtosis coefficient is defined, which is divided into two groups and five types. The dependence of the fourth-order cumulant on the weight coefficient of the mixture is studied, as a result of which the conditions are determined under which the kurtosis coefficient of the mixture is equal to zero. The use of a two-component mixture of Subbotin distributions for modeling single-vertex symmetric distributions with a zero kurtosis coefficient is justified. Examples of symmetric non-Gaussian distributions with zero kurtosis coefficient are given. The use of class K models gives a practical opportunity at the design stage to compare the effectiveness of the developed methods and systems for non-Gaussian signals with zero coefficients of asymmetry and kurtosis processing.","PeriodicalId":474184,"journal":{"name":"Èlektronnoe modelirovanie","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}