CONCEPTUAL MODEL OF DIGITAL TRACE OF PROJECTS IN THE CONDITIONS OF DIGITALIZATION OF SOCIETY

The problem of creating an effective conceptual model for the formation of digital footprints of projects and development programs in the context of digitalization is considered. The life cycle of projects, knowledge, and management technologies is significantly shortened and digitization processes create requirements for the creation of their digital footprints and shadows. The technical and technological complexity of development projects increases due to innovation. These trends create significant challenges in the development of project and program management systems in the context of digitalization of society. It is proposed to use genomic representations as a basic model and methodology for the formation of digital footprints of projects. The proposed conceptual model of digital footprint formation of projects allows to take into account the external and internal environment of the project within a certain activity. The formalized model of the carrier of methodology of formation of a digital footprint of the project on the basis of system of knowledge of P2M is resulted. The classes of a hypothetically complete model of project management methodology for genome formation within the digital footprint creation are determined. The algebra of methodology which allows to form complex digital footprints of projects and programs is defined.

URGENCY OF USING HIDDEN DATA TRANSMISSION IN VIDEO FILES

The article examines the problems of protecting information from unwanted access, which have tried to solve throughout the existence of mankind. Nowadays, the widespread use of electronic means of communication, electronic eavesdropping and fraud, a variety of computer viruses and other electronic hazards, electronic systems place high demands on the protection of information. Thus, the study of digital steganography is an urgent task. There are two main areas of hidden data transmission: cryptography and steganography. The purpose of cryptography is to restrict access to information by encrypting it. Unlike cryptography, steganography allows you to hide the very fact of the presence of hidden data. The study examined the main methods of covert data transmission using computer steganography, namely: the method of using system-reserved areas of digital data formats, methods of hiding information by special formatting of text files, which include the use of word, sentence or paragraph shift, selection certain positions of letters in the text or the use of properties of system fields that are not displayed on the screen, the method of using simulation functions, methods of using unused disk sectors, the method of using redundant media files (audio, photo and video). Currently, due to the growth of information and increasing the bandwidth of communication channels, the issue of hiding information in video sequences is becoming increasingly important. The transmission of digital video in recent years is a typical event and does not arouse suspicion. In the course of the research the peculiarities of hiding information in video files are considered, the comparison of existing algorithms of computer video steganography is made. The task is to develop your own algorithm for embedding information in the blue color channel of video files. The object of research is the transfer of hidden data in digital media files. The subject of research is the transmission of hidden data in the video stream. The purpose of research is to review the subject area, to examine the available methods of embedding information in media files in general and specifically in video files, to identify the advantages and disadvantages of existing algorithms, to develop their own algorithm of video steganography based on previously obtained research results. Research methods - methods of information theory, probability theory and mathematical statistics; methods of digital processing of signals, static images and video files; methods of vector analysis. The results of research - an overview of the features of hiding information in video files, compared existing algorithms of computer video steganography.

MODIFICATION OF METHODOLOGICAL AND APPLIED TOOLS FOR DIAGNOSING THE FINANCIAL CONDITION OF A CONSTRUCTION COMPANY IN THE CONTEXT OF REMEDIATION MANAGEMENT

The practical premise of the study is that the existing practice of diagnosing the state of rehabilitation of enterprises is, to some extent, satisfactory for industrial enterprises, but is unsatisfactory for organizations and contractors who are the subjects of investment and implementation of construction investment projects. Thus, there is a need for fundamental adaptation and updating of scientific and methodological and analytical approaches to the content of rehabilitation processes for developers and other participants in the construction and investment process to the peculiarities of interaction of these entities within the microenvironment of the construction project. Theoretical approaches to the classification of changes in the activities of enterprises, theoretical substantiation of the development of approaches to enterprise management, differentiation and definition of the concepts of adaptation of enterprises to change and the management system of adaptation of enterprises to change are studied and systematized. Innovative is the criterion-calculation basis, the content of analytical modules and the special adjustment of the tools of preventive rehabilitation to the functional and economic features of the operating activities of the enterprise-developer of housing (EDH); on the economic content and regulations of interaction of EDH with investors and other stakeholders of the project; on the content of the life cycle of housing construction projects that in the process of creating value have transformational effects on the level and structure of operating assets and mutual obligations of EDH and its business counterparties. The theoretical and methodological approach to the creation of a comprehensive system for assessing the prerequisites for the formation of a management system for adaptation of the enterprise to change is formed. Created on the basis of theoretical developments, a set of applications successfully coordinates the processes of administration of the construction project cycle with the content and regulations of economic, organizational and managerial rehabilitation measures for the developer, in order to prevent EDH and its institutional partners from losing liquidity and insolvency crisis.

CONCEPT OF DIGITALIZATION AND RESEARCH IN THE FIELD OF GERT-NETWORKS OF PUBLIC SECTOR PROJECT MANAGEMENT AND PROGRAMS

The modern world space has long gone beyond the construction of the information society, because digital technologies are absorbing more and more areas of public life, radically changing the forms and methods of their implementation. Therefore, most countries in the world focus on development in the direction of building a "digital economy", using all possible competitive advantages from its implementation. Ukraine is trying to keep up with the development of information technology in various areas of both public sector governance and public life. Some achievements have been made, but the systemic and synergistic effect on the development of the country has not been achieved, despite the significant potential of domestic IT professionals, who are among the top five IT outsourcers in the world. In my opinion, the very use of digitalization in the field of governance in the public sector can be the first impetus for digital transformations for the development of Ukraine's competitive economy. Therefore, they need -analysis of theoretical and practical approaches to a detailed study of the features of digitalization in the public sector of Ukraine during its digital transformation and the development of proposals for their implementation, which was the topic of my research. The word "digitalization" has entered our vocabulary so imperceptibly, but quite thoroughly, that in 2019 it was even recognized as the word of the year. Although the very definition of the concept is still debated not only in the domestic scientific field, but also abroad. The Dictionary of Modern Ukrainian Language and Slang "Myslovo" explains this neologism as a transliteration of the English "digitalization", which means changes in all spheres of public life related to the use of digital technologies, and is a manifestation of the global digital revolution. In my opinion, I agree with my colleagues that the development of digital transformations in the system of public sector management and administration is a potential example for the whole country, which in general also provides significant benefits for private companies - increased productivity and competitiveness, as well as for people. - acquisition of new knowledge and skills, choice of work and expansion of opportunities.

MULTIPLE REGRESSION MODELING THE CHEMICAL COMPOSITION EFFECTS ON THE TENSILE STRENGTH OF Ni-BASED SUPERALLOYS

Based on the previously obtained results of the Data Mining - based Classification and Regression Trees (C&RT) technique application to industrial Ni-based superalloys, multiple regression models were developed to describe quantitatively the chemical composition effects on the alloys tensile strength. The regression models obtained were verified for adequacy in three ways, contrary to the conventional approach requiring only several inadequacy variance values calculations. Namely, the following verification methods were applied: traditional R2 coefficient calculations; comparisons of computer and experimental frequency distributions of the quality indexes; Monte-Carlo simulated and experimental data based scatter plots comparing. It was emphasized that, according to the general statistic principle, close coincidence of the Monte-Carlo simulated and real frequency distributions of any measured characteristic values means full formal (statistical) identity of the real and simulated objects. Hence, in addition, coincidence of the corresponding scatter plots statistical parameters should be considered as a sign of the physical identity of real and modeled regression dependencies. All the applied verification methods show the excellent results that leads to conclusion about high workability of the obtained models in practical and theoretical applications. An additional general advantage of the models was noted: their physically interpretable structure, that provides the opportunity to determine and analyze the effects of individual chemical elements and their interactions under real industrial conditions. Most of the obtained results and the formulated conclusions, especially related to the chemical elements individual effects are in good accordance with the known experimental and theoretic data for polycrystalline Ni-based superalloys. Meantime, some unexpected features, particularly, for the interactions of Nb, Ti, Cu with each other and grain boundaries were revealed, showing necessity of further in dept investigations.

CHOICE OF BUDGETING IMPERATIVES FOR INVESTMENT AND CONSTRUCTION PROJECT AS A DIRECTION OF IMPROVING THE FINANCIAL MANAGEMENT SYSTEM OF THE ENTERPRISE

The article is devoted to the definition of features and directions of increasing the efficiency of enterprise management with the help of budgeting technology. Research of theoretical and methodological, organizational and practical aspects of budgeting process management is implemented through the introduction of software products. On the theoretical basis of the formation of budgets of enterprises, which are considered from the standpoint of the implementation of management activities through the implementation of management functions: planning, organization, coordination, motivation and control. The stages, sources of information security and features of budgeting in modern conditions are defined. The need for budget activities of enterprises at the strategic and tactical levels. Effective budget execution is proposed to increase the competitiveness of enterprises. The article presents further improvement of software implementation based on software budgeting technologies, which are integrated into it SyteLine Budgeting technology (the process of budgeting based on the synthesis of business process management systems). This technique is an effective alternative to traditional structural resource budgeting and is relevant for companies that are on the path of business process reengineering and application of economic and mathematical models of optimal choice, which will allow the company to develop specific tactical (operational) tasks to form a budgeting system. significantly reduce the complexity of budgeting at both the operational level and strategic management. Scientific principles and practical recommendations formulated in the work allow to increase the efficiency of management of organizations of all forms of ownership and activity by creating an automated budget system at the level of divisions and operational processes of the company, which will develop budgeting and methodological approaches to its formation, in particular, with the use of the normative budget of the project.

INDIVIDUALIZED MANAGEMENT STRATEGIES IN THE FORMATION OF LESSON SCHEDULE INFORMATION TECHNOLOGIES

The proposed theoretical foundations of automated management of educational institutions and information technology and management systems of their structural units include elements of system, information, design, process and value-competence approaches. This made it possible to obtain results that have a fairly high degree of readiness for use in the implementation of similar IT in the free educational space. The results that have the greatest practical significance include the developed mechanisms and tools of methodology for harmonization of solutions in information technology, namely, structures, schemes, algorithms, processes and tools allow: to use in the functional structures of educational institutions IT methods and tools; to adjust the organizational component of these institutions to the functional structure of the tasks of managing a balanced educational space.

UPDATING THE TOOLS FOR ECONOMIC AND MANAGEMENT RECONFIGURATION OF BUSINESS PROCESSES OF CONSTRUCTION ENTERPRISES IN THE CONTEXT OF THE MODERN PARADIGM OF DIGITALIZATION OF THE ECONOMY

Current trends of globalization, digitalization of the economy, the introduction of information technology objectively gradually weaken the material component (traditional factors of labor - land, capital, labor) and, conversely, highlight the importance of the intangible component of competitive positions of economic entities. The study of the evolutionary development of competition theory and establishing the impact of modern technological changes on the content and nature of competition was the basis for substantiating the key provisions of modern theory of network intellectual information information, the content of which is to form hyperconnected intellectual information business systems. introduction of digital technologies, resources, competencies and business platforms provide intensification of intersectoral innovation and production cooperation, increase the speed and volume of information and knowledge, reduce the life cycle of innovation and generally contribute to the generation of dynamic competitiveness. Achieving strategic priorities for development and ensuring the competitiveness of enterprises, taking into account the digitalization of the market of construction works and services requires taking into account the specifics of innovation. The essential and substantive characteristics of the concept of "innovative convergence" are revealed, innovative incentives, motives, interests and tools of its implementation are established, which will create conditions for production at the enterprises of the branch with the use of BIM-technologies. Theoretical and methodological approaches to modeling the information technology architecture of the organization are proposed. Theoretical and methodological approaches to determining the formal features of an innovative organization in the context of the digital economy have been developed. The influence of intellectual potential and innovation culture on the innovative development of the organization in the digital economy is determined. The factors that generate in management information and identify the conditions that promote (hinder) the implementation of innovations are systematized.

CONSTRUCTION OF SOLVING EQUATIONS OF SEMI-ANALYTICAL METHOD OF FINISHED ELEMENTS FOR PRISMATIC BODIES OF COMPLEX SHAPE

The article presents an effective numerical approach to the study of arbitrarily loaded massive and thin-walled prismatic bodies of complex shape, the deformation of which can take place beyond the elasticity of the material. The equations of the semi-analytical finite element method (SAFEM) when used to decompose the displacements of Fourier series. The main relations between the spatial problem of the theory of elasticity in a curvilinear coordinate system and the theory of plastic flow for an isotropically reinforcing material under the Mises fluidity condition are presented. In accordance with the method of the moment scheme of finite elements (MSFE), the expressions of deformations of the prismatic finite element due to the nodal values of amplitude displacements are obtained. Formulas for calculating the stiffness matrix coefficients of a finite element (FE) with variable and averaged in the cross-sectional plane mechanical and geometric parameters are derived.

STUDY OF THE EFFICIENCY OF CLASSIFICATION METHODS IN FORECASTING IN MACHINE LEARNING TASKS

The article considers the use of classification methods to solve the problem of predicting the aerodynamic properties of materials. The methodology of classification by methods of machine learning is offered and investigated. The following logistic regression (LR), K-nearest neighbors (KNN) method, decision trees (DT) and random forest (RF) were used as classification methods. The methodology consists of the following stages: data collection, exploratory data analysis, modeling, evaluation of model efficiency, and improving model efficiency. To implement the forecasting procedure, preliminary data processing was performed, which consists of stages: Data collection and Intelligence data analysis. The next stage – Modeling, consists of two parts: Preparation and Selection of the model. The accuracy of forecasts is calculated. The analysis examined the prediction results in terms of accuracy, such as response, F-measure, Kappa, performance value (ROC) and error rate measured by the mean absolute error (MAE) and the root mean square error (RMSE). The analysis of forecasting accuracy is carried out.