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  • Algorithmization of the solution of the task of compiling a comprehensive service taking into account the emotional preferences of customers based on the modification of the method of branches and boundaries

    The article considers the issue of taking into account the emotional preferences of customers in the process of compiling a comprehensive service to increase customer satisfaction. The problem of forming an optimal set of services is solved, taking into account the emotional preferences of the client and the economic constraints in the form of the client's budget. Modifications to the method of branches and boundaries are proposed, reducing the number of calculations. An algorithm for solving the problem is developed and the results of a numerical experiment are presented, showing that the developed algorithm has basically a linear increase in execution time depending on the number of services. The advantage of this method is a significant reduction in operating time, as opposed to a complete search, as well as ease of implementation.

    Keywords: formation of an optimal set of services, consideration of emotional preferences, the method of branches and boundaries

  • Digital Transformation of Education: Cognitive Models of Collective Cognition and Communication

    The article shows the relevance of solving the problem of conceptual analysis of traditional and digital educational structures integrated in the process of transformation, identification and evaluation of their effective interaction. It is proposed to use the methodology of the cognitive analysis that has already passed the stages of approbation in the subject environment of education. It is noted that the educational process includes continuously generated and continuously modified cycles of cognition of reality. Within the framework of generalized descriptions presented by models of cognition, a transition is naturally made from individualized cycles of cognition to a collective study of reality, in which models already control collective cognition, forming a cycle of cognition based on collective communication. An initial cognitive model has been developed which illustrates the situation that has developed in the modern educational system under the powerful influence of the "technocratic" point of view on digitalization. A cognitive model of collective cognition and communication in the digital environment is proposed, which systematically integrates three important parts from the point of view of transformational processes in education, namely, the traditional structure of cognition of reality, the newest structure of digital communication built in the paradigm of the collective subject of cognition, and, finally, the structure of strategic management based on the socio-cultural development of society and the country.

    Keywords: Cognitive model, education, digital transformation, cognition, communication

  • Determination of the technical condition of building structures by the maximum likelihood method

    This article analyzes the assessment of the signs leading to the possible destruction of the studied building structure. To determine the degree of influence of signs (or groups) on the level of structural failure in their direct diagnosis, it is possible to use a mathematical basis, in particular, the Bayesian approach. The essence of the implementation is to compare the probability of failure for each structure under study. The result of the work is to identify and describe not only the features of the relationship between each feature affecting the destruction of the structure and the calculated probability of destruction, but also their degree of influence on increasing or decreasing the probability of an accident. According to the estimates of the mathematical definition of the signs affecting the destruction of the building structure, it is possible to more objectively assess the effectiveness of the method used to check the condition of the building structure.

    Keywords: construction and technical expertise, defects, reliability, diagnostic tasks, diagnostic methods, efficiency

  • Evolution and state of the art of Question Answering Systems: Intent and Named Entity Recognition Technologies using the BERT model

    This paper explores in detail the technological evolution and current state of question and answer (Q&A) systems. Using an example of an airline customer service task, a BERT-based model is developed that is capable of recognising user intentions and extracting named entities. The paper provides a detailed description of the dataset preparation, data analysis methods and data exploration techniques of the project. A description of the model and parameter settings during the model tuning process and the model training process is presented. The model developed in this project is named RNEEMAviCS-BERT, which achieved an intent recognition accuracy of 98.2% and named entity recognition accuracy of 83%. We have created a semantic analysis module for the question and answer system. The next stage of our work will be to integrate the dataset to complete the query-response and response generation components of the Q&A system.

    Keywords: question-answering systems, ChatGPT, BERT, machine learning, neural networks, pre-trained models, intention recognition, named entity recognition, data analysis, model training

  • Support for management decision-making under emergency risks based on the use of methods for analyzing multidimensional statistical data

    The article is devoted to applied issues of improving regional security management processes through the development of methods for analyzing data on emergency situations. In order to identify patterns in the occurrence of emergency situations, multidimensional methods of processing statistical data were used. A multidimensional classification of data in the field of emergency situations based on fuzzy logic is proposed. The classification was performed using a fuzzy inference system with clear membership functions. As statistical data, data on emergency situations of a man-made, natural and biological-social nature that occurred in the federal districts of Russia in 2020, including data on dead and saved people, were considered. An analysis of data samples on regional emergency situations was carried out according to 5 criteria, and clustering of regions was carried out.

    Keywords: emergency situations, fuzzy multidimensional clustering, fuzzy logic, fuzzy inference system, computer program, mathematical model, forecasting, decision making

  • Assessment of the principles of placement of the territorial-property complex of mining companies

    The principles of placement of the territorial property complex are closely related to the specifics of the production activity of the enterprise, and therefore are often repeated within the same industry. This paper analyzes the placement of the territorial and property complex of the world's largest mining companies engaged in the extraction and processing of potash ore. A conclusion is drawn about the formation of general principles for the placement of the territorial and property complex of KCl mining companies, which were taken into account in particular during the design and construction of the mining and processing plant in the Volgograd region of EuroChem-VolgaKaliy LLC.

    Keywords: property complex, territory, production placement, mining, potassium

  • Research of existing approaches and development of a model of the scientific and production potential of the region in strategic planning

    The article synthesizes several approaches to the development of the social environment of neighborhoods and clusters, taking into account scientific developments in assessing the potential of territories in terms of building density, number of floors and capacity saturation of schools, preschool institutions and production areas. Options for implementing the strategy are outlined based on multi-product models for calculating capacity and scientific and production potential for the development of territories.

    Keywords: cluster, quarter, region, potential, strategic planning, production capacity, multi-product models, building density, schematic map, optimization

  • Model and methodology for calculating the placement of rescue units to ensure the safety of people in places of mass recreation in the water area and beaches (on the example of the subject of St. Petersburg)

    In the article, the author examines the organization of the placement of rescue units of the search and rescue service of St. Petersburg and identifies problematic issues of ensuring the safety of people in places of mass recreation of the population in the water area and beaches. The purpose of the work is to develop a model and methodology for calculating the necessary and optimal number of rescue forces and means to improve the safety of people in the water area. As a result of the research, a model and methodology for calculating the required number of rescue forces and means in places of mass recreation of the population and beaches, on the example of water bodies of St. Petersburg, have been developed and proposed. A comparative analysis of the compliance of the data obtained in the calculations on the necessary and sufficient number of rescue stations and rescue posts on the beaches, taking into account the specifics (features) of the water area and the current standards of their (rescue stations and posts) placement on the water bodies of St. Petersburg.

    Keywords: rescue stations, rescue posts, area of responsibility, search and rescue operations, calculation model and methodology, safety in the water area, safety on beaches and in places of mass recreation

  • Identification and classification of defects in building structures according to the established criteria of operational wear

    By conducting a construction and technical expertise on the inspection of building structures and identifying several signs that can lead to their destruction, it is possible to identify a defect in which the destruction and accident of the structure under study is most likely to occur. It is proposed to use a Bayesian approach to evaluating the effectiveness of methods for determining defects affecting structural failure. The use of knowledge on the inspection and testing of building structures of buildings and structures is to determine the degree of relationship between the possible destruction of a building structure and its inspection, based on methods developed in the theory of reliability of technical systems. Based on the results of mathematical determination of the degree of malfunction, it is possible to more objectively assess the effectiveness of the method used to check the condition of the building structure. The method of using construction and technical knowledge to determine the technical condition of structures in an emergency state, in relation to the use of the Bayes formula, is considered. According to the proposed methodology, examples of determining the defect and the degree of destruction of building structures are given.

    Keywords: construction and technical expertise, defects, reliability, diagnostic methods, wear, efficiency

  • An integrated approach to assessing the competitiveness of an enterprise

    The article presents an integrated approach to assessing the competitiveness of a scientific production enterprise. The methodology includes an analysis of seven key performance indicators of an enterprise that have the greatest impact on its competitiveness: product competitiveness, staffing, reputation, innovation potential, sales activities, internal organization, partnerships. As a result of the study, recommendations were formulated aimed at the formation and strengthening of competitive advantages.

    Keywords: enterprise competitiveness, efficiency assessment, complex assessment method

  • The method for evaluating the effectiveness of organizing the evacuation of people from a public building in case of fire using an agent-based approach

    The article is devoted to the study of crowd behavior in public buildings during a fire. A method for evaluating the effectiveness of organizing the evacuation of people from a public building is proposed, which makes it possible to take into account the spread of panic among evacuees. The method is based on the development of an evacuation simulation model that takes into account the impact of certain factors on the degree of people's panic, which implements an agent-based approach. The proposed method allows, when describing the psycho-emotional behavior of each agent separately in the process of evacuation, to evaluate the effectiveness of organizing the evacuation of the crowd as a whole. The simulation results on the example of a shopping and entertainment center show that possible panic conditions of evacuees can affect the efficiency of evacuation.

    Keywords: evacuation, panic, simulation model, efficiency assessment method, shopping and entertainment complex, agent-based approach

  • Interaction of Tello EDU and Turtlebot3 in rooms with a weak signal using a local network and the ROS operating system

    The article explores the interaction of Tello EDU, a small-sized educational drone, with Turtlebot3, an unmanned ground vehicle, in rooms with a weak signal. The article examines how, using a local network and the robot operating system (ROS), it is possible to achieve effective collaboration between these two devices. It analyzes how a local network can be used to broadcast data and monitor devices in conditions of a weak external signal. The role of ROS as the main tool for managing and interacting with devices is being investigated. In addition, the article examines specific use cases, including interaction and coordination between Tello EDU and Turtlebot3. A diagram of the interaction of two unmanned vehicles is also presented, a detailed description of their operation is described, and Python code is presented using various libraries based on the ROS robotic operating system.

    Keywords: Tello Edu, operating system (ROS), UAV, local area network, Wi-fi, nodes, SLAM, weak signal, route planning, autonomous robot, Turtlebot3

  • Modeling of the development of the accident rate of building structures

    This article analyzes the assessment of the signs leading to the possible destruction of the investigated building structure. Using the mathematical basis for diagnosing the destruction of a building structure, it is possible to determine how the signs that affect the destruction of the structure or their groups affect the determination of the degree of destruction. Applying the Bayesian approach to determining the degree of malfunction of a building structure and its destruction, a comparison of the probability of destruction of each investigated building structure is given. It was found out how the calculated probability of each structural failure was affected by the presence of each feature and what contribution to the increase or decrease in the probability of an accident was made by the analyzed feature affecting the destruction of the structure. It is proposed to use artificial, model destruction of building structures to determine the influence of various factors on determining the degree of destruction, so to speak, in its pure form and in various variants. In addition, you can get test cases to test the effectiveness of various diagnostic methods and find out a number of theoretical questions. Considering this, and the other goals listed above, models were built. An assessment of the influence of a feature that affects the probability of destruction of a building structure in one of many ways is shown. According to the proposed methods, the values of the sign affecting the destruction for the structure are determined. The probability of destruction is determined.

    Keywords: construction and technical expertise, defects, reliability, diagnostic tasks, diagnostic methods, efficiency

  • Aspects of city buses life cycle management

    Public bus transport is an important part of the life of most residents of the city. The age of a city bus affects its safety, efficiency and competitiveness. Based on the above, the life cycle of buses needs to be managed. The purpose of the study is to analyze the life cycle of urban buses and develop management solutions. The research period is from 2012 to 2022. The place of collection of information is Tyumen. The uneven renewal of rolling stock can lead to a significant financial annual burden on the city budget. The experience of the functioning of the urban transport system has shown the demand for the use of buses of particularly large and high capacity. Such a management decision helps to increase the comfort of passengers and increase the level of road safety. The dependence of the influence of extensive bus renovation on the share of budget expenditures in Tyumen is presented. It is proposed to distribute the annual cost of buying new buses evenly. It is necessary to strive for an equilibrium system, when planning an extensive development path for the urban public transport system. The methodology of this research can be used by legislative and executive authorities when planning the city budget.

    Keywords: urban transport system, city bus, life cycle of urban buses, public transport

  • The method for the technical and economic assessment of options for building an organizational and technical system of the "cyberpolygon" class

    The article is devoted to the study of problematic issues of the formation of organizational and technical systems of the "cyberpolygons" class using the original methodological apparatus for the feasibility study of system engineering solutions for their construction. The features of existing approaches to the justification of system engineering solutions for the construction of organizational and technical systems, information technology and technical systems are considered. Directions for their development are proposed, taking into account the dynamics of the phased creation and modernization of organizational and technical systems with simultaneously developing infrastructure projects and solutions. Formal aspects in the methodological apparatus are reflected in the change in the composition of the functional components in the conceptual and analytical models, the corresponding formal descriptions of their relationships and characteristics, as well as in the modification of the procedures for the technical and economic assessment of options for building a cyberpolygon. The method of technical and economic evaluation of options for constructing a cyberpolygon proposed in this study makes it possible to rank alternative options for the infrastructures of the created cyberpolygon according to the value of their technical and economic efficiency and to select the rational one from them.

    Keywords: information security, infrastructure, cyberpolygon, feasibility study, means of protection

  • Personnel management in a real estate agency

    The dynamic model of personnel management in a real estate agency is investigated. The structure of the management system includes a real estate company as a Leader and a realtor as a Slave. The relations between them are built on the basis of a hierarchy corresponding to the information regulations of the Stackelberg games. Motivation is used as a method of hierarchical management. Algorithms for achieving equilibrium in different information regulations are presented. The numerical implementation of these algorithms is based on simulation modeling, the results are analyzed.

    Keywords: real estate company, hierarchy, simulation, stackelberg's game, stackelberg's game with feedback, motivation, leader, slave, dynamic system

  • Modeling of the optimal patrol route of the outfit by the method of branches and borders

    The article is devoted to solving optimization problems related to determining the optimal patrol route of the units of the territorial bodies of the Ministry of Internal Affairs of Russia when they are serving to ensure the protection of public order and public safety on the streets and in other public places, by using one of the mathematical methods of discrete optimization to find the shortest possible movement of employees in the conditions of their limited number and changing operational the situation. The practical implementation of the technology for obtaining the best solution to the traveling salesman problem by the method of branches and boundaries, to achieve the result of which numerical modeling was used, is considered. The possibilities of finding the optimal path of movement are shown when the conditions of the problem being solved change. In conclusion, conclusions are drawn about the need to improve the classical method of branches and boundaries to obtain a more accurate result.

    Keywords: mathematical modeling, optimization problem, method of branches and borders, traveling salesman, internal affairs bodies, public order protection, public safety, operational situation, forces and means, patrol route, efficient allocation of resources

  • Application of machine learning methods for the analysis of personality psychotypes

    This article discusses the solution of the problem of monitoring contact information in a social network and determining the personality psychotype based on it. Most of the material proposed by the developers works with English-language texts to determine the emotional coloring, their classification and, to a lesser extent, clustering. The approach proposed in the article is based on the use of the K-means method to solve the clustering problem of Russian-language texts and subsequent comparison with the results of working with the same data of an already trained model. During the work, was developed an effective method of parsing for collecting data. A proprietary data set has been collected and its processing and detailed analysis have been carried out. The result of the study allows us to make a primary assumption about what kind of psychotype a particular person has. It is quite difficult to determine the accuracy of the results of the task, since there is no predefined correct answer in machine learning without a teacher, and determining the psychotype is a difficult task from the point of view of psychology. All program code is written in the Python programming language.

    Keywords: clustering, psychotype, social network, sanguine, phlegmatic, choleric, melancholic

  • The article is devoted to the issues of automation of software creation processes, in particular, the issue of creating universal means of testing applications for mobile devices

    The paper discusses in detail the process of creating a tool for automated testing that allows you to test applications created for Android and iOS and also provides the results of the research that allows you to determine the reduction in time spent on testing procedures for mobile applications that arise when using the developed tool for all qualifying categories of specialists involved in testing applications. The modular method of solution construction proposed by the authors will allow the future to simply expand the functionality of the solution by adding new algorithms and testing modes, significantly increasing the ""coverage area"" of automated test scenarios.

    Keywords: test automation, user interface testing, code generation, mobile testing, PageObject pattern, software testing, quality assurance, quality management, functional testing, time to market, delivery management

  • Determination and ranking of the targets of the offender in an attack on an important state object

    The article deals with the issues of determining and ranking the goals of the offender in an attack on an important state facility. The general goals of violators in an attack on an important state object are described, as well as important state objects with distributed goals preferred by the violator are considered. The material provides a definition of the common goal from the position of important state facilities, where the immediate goals are the subjects of physical protection. The ranking of targets is determined taking into account the probability of their selection by violators and potential losses in case of success of unauthorized actions, which allows you to correctly determine both the concept of creating a physical protection system and technical solutions for its implementation. The article describes the methods of peer review, which are solved by representatives of an important state object with the participation and with the help of independent experts of a specialized organization, who analyze the vulnerability of the object as a whole.

    Keywords: integrated security, methods, models, security forces, offenders, important state facilities, clashes between security and attack forces, offenders' goals

  • Using the Monty Hall paradox in project management tasks. Part I. Optimal choice of a strategy for increasing the innovative potential of an enterprise

    In this paper, we investigate the possibility of applying the theory of Monty Hall's paradox in tasks that require the need for an optimal choice of a strategy for developing the innovative potential of an enterprise. The article provides recommendations for taking into account and constructive use of the effects that affect the involved experts, in particular, the Condorcet principle and paradox. The paper explores the limits of applicability of the Monty Hall paradox theory. Its applicability is determined, together with considerations about the profitability of changing the initial choice in problems with the so-called "random intelligence".

    Keywords: decision support systems, mathematical modeling, expert evaluation, Monty Hall's paradox, project management, collective assessment, Condorcet's paradox, enterprise management, assessment of enterprise characteristics, innovative potential of an enterpris

  • Analysis of the current state of activity of duty units of territorial bodies of the Ministry of the Interior of Russia

    The article analyzes the current state of the duty units of territorial bodies of the Ministry of the Interior of Russia, namely the main activity of receiving and registering applications and reports on crimes, administrative offenses and incidents on the example of one of the subjects of the Russian Federation. Regression models reflecting the state of the operational situation in the serviced territories are constructed. The interrelations are shown by the level of registered statements and reports on crimes, administrative offenses, incidents of citizens and other indicators that indirectly or directly affect it. Conclusions were drawn about the need to modernize the assessment methodology of duty units of the territorial bodies of the Ministry of Internal Affairs of Russia.

    Keywords: duty unit, regression analysis, internal affairs agencies, mathematical modeling, assessment of the activity of duty units

  • Analysis of the stability of the technological system for the production of caramel

    The paper considers the operator model of the technological system for the production of caramel, assesses the stability of the subsystems and the content of the technological system. For a consistently stable caramel formation subsystem using the Shewhart map under specific production conditions, an analysis of the stability of the subsystem was carried out.

    Keywords: operator model, subsystem, system integrity, process stability, control charts, average values, range

  • A model for assessing the intelligence security of a group of unmanned aerial vehicles for military purposes from enemy radio and radio intelligence complexes

    The article considers a probabilistic-temporal model for assessing the intelligence protection of a group of unmanned aerial vehicles for military purposes from enemy radio and radio intelligence complexes in service with the US Army, provides analytical expressions and a calculation sequence with examples.

    Keywords: intelligence security, a group of unmanned aerial vehicles, the probability of temporary contact, the probability of energy detection, stealth, signal-to-noise ratio, surveillance reconnaissance zone, detailed reconnaissance zone, radio and radio intellig

  • Automated system for issuing bank guarantees based on forecasting the execution of government contracts

    In order to provide information support for decision-making on the issuance of bank guarantees for the execution of a contract in the field of public procurement, it is important for banks to obtain historically accumulated information on the execution of government contracts. This is necessary to assess the possibility of the supplier's performance of his future contract. This can be done by collecting and aggregating information about contracts from the Unified Information System in the field of procurement. The paper proposes to use IT technologies and data analysis to predict the performance of the contract and identify bona fide suppliers. In the work, a selection of primary data on contracts was formed for modeling using the parsing of the FTP server of the Unified Information System in the field of procurement, and the parsed data was preprocessed for use in machine learning models.

    Keywords: information system, data analysis, government contract, data parsing, machine learning