No 2 (2024)

Based on methods of inductive logic, an approach to identifying of implication relationships “If A, then b” in Big Data is considered. This approach is considered in conditions of low reliability and inconsistency of data. To work in this condition, logics with vector semantics in the form of V^TF logics are used. The presence or absence of phenomena in tables of their joint occurrence is formalized by truth vectors with components v⁺ and v^-, where v⁺ is a measure of the true of a statement about the presence of a phenomenon, v^- is a measure of its false. On the base of statistical induction principal, the indicator of the validity of a causal relationship is calculated as the average value of the truth vectors of the corresponding non-strict propositions. The resulting value is interpreted as a non-strict probability of the relationship, which acts as a vector indicator of its validity. The applicability of the approach for processing qualitative and quantitative data, as well as data containing artifacts, is shown.

The article discusses the conceptual model of web page loading developed by the authors. The model consists of three entities: Backend (characterized by the metrics: Page creation time, Number of SQL queries, SQL query execution time, Cache size, Page size, Number of errors) environment (characterized by the metrics: DNS, TLS, Connection, Load speed), frontend (characterized by metrics: FCP, LCP, TBT, CLS, SI). The presented conceptual model proposes to consider the process of loading a page, including all stages of its formation from the user requesting a page to rendering the received content. Its use in the process of optimizing the loading speed of a web page gives a new look at possible problems of a web project. The paper presents an example of using this model to solve the current problem of optimizing page loading speed.

Development of new data-driven concepts based on artificial intelligence methods leads to the appearance of new approaches to decision support in production systems aimed at increasing their efficiency. However, the use of existing uncoordinated data and knowledge to improve the quality of decision-making processes remains a challenging task due to the diversity of their terminologies and cognitive models. The paper proposes an approach to development of a multi-aspect ontology for decision support in production maintenance. The multi-aspect ontology is based on a layered approach to integrating knowledge about various aspects of a complex problem domain (its constituents or subdomains) while preserving the autonomy of the original ontologies. The developed multi-aspect ontology supports interaction between aspects using inference mechanisms what increases the efficiency of in- formation flows and the degree of automation of related processes. The given example shows that the proposed approach can significantly reduce the involvement of human workers in maintenance pro- cesses in an enterprise, as well as the cognitive load on operators and maintenance technicians.

This paper examines the problem of detecting tears on a protected document page. We present an approach based on analyzing the document image in the infrared range. It is assumed that in this case it is possible to separate the damage from the protective elements applied by IR-transparent inks. So the problem of tears detection might be reduced to a search for thin lines of a certain length adjacent to the border of the document page. Thus, we developed a tear search algorithm based on the search for "ridge" type lines followed by checking whether the line satisfies the specified properties. We created and pub- lished a VIUR dataset with Russian banknotes in order to test the algorithm. The recall of the proposed algorithm is 0.87, the precision is 0.94.

We develop an analytical method for the approximate calculation of multidimensional integrals, focused on solving balance equations in Randomized Machine Learning procedures. The latter are used to forecast the evolution of thermokarst lakes’ area. The method is based on the series expansion of an analytical function - the exponential - and the transformation of multidimensional integrals into the product of simple one-dimensional integrals on interval sets.

The article is devoted to the financial problems of digital transformation of regions of the Russian Federation. Principles and criteria for cost optimization are proposed when forming a state order for the digitalization of public administration in the regions and the budgetary sector (health care, edu- cation, social sphere, urban services), taking into account the current geopolitical situation in the country and the world, the tasks of digital transformation of the region and the installations of federal authorities, aimed at integrating regional systems into the federal information structure and using domestic software products and hardware.

The paper covers the issues of expanding the capabilities of the graphical shell for the Open- FOAM software package by connecting a module for controlling numerical modeling in the field of continuum mechanics using the driftFluxFoam solver program. Existing approaches to solving the problem of the lack of a graphical user interface for OpenFOAM are analyzed, their shortcomings are identified, and the relevance of the ongoing research is proven. The main components of the paper are high- lighted: research topic, goals and objectives, results, novelty of the work and expected practical value. The technology stack by means of which the research goal is achieved is presented and argued, the features and advantages of each technology are highlighted. A diagram is provided showing the step- by-step process of a user working with the product. The stages of conducting a numerical experiment using the proposed graphical shell and the driftFluxFoam solver are described. The key techniques pro- posed by the author and distinguishing the current product from its closest analogues are highlighted. The possibility of using the selected stack to achieve development goals was confirmed, and the main directions for further research in the topic under consideration were formulated.