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  • Evaluation of rule sets for verification of building information models

    Implementation of digital technologies in construction field demands a fundamental revision on the project documentation approach. First, is to re-orient the design approach by transition from two dimensional project documentation to object oriented multidimensional informational model. That leads to use of new technologies in construction production and in quality control of project documentation field. Based on previous conclusions, the problem of quality check of an information model, the check on compliance of the specifications and technical documentation of the state where construction is carried out, and on compliance to requirements of the client becomes number one priority. A general algorithm of information model verification of anthropogenic object is offered in the article. The typology of anthropogenic objects is offered. Approaches to form the lists of the compliance regulations on the specifications and technical documentation depending on type of anthropogenic object are defined. The problem of forming lists of the compliance regulations on the information model according to its stage of life cycle is separately considered. An approach to the future development of the tools to the complex analysis of information model based on the open IFC format is formulated.

    Keywords: construction, cybernetics, information modeling, construction system, cybernetics of construction systems, Building information models, analysis, verification, BIM, anthropogenic object

  • Using data mining for websites security

    The paper is devoted to the actual problem of ensuring the information security of web-sites. It discusses a method for detecting intentional threats to the confidentiality of information as a result of unauthorized access and is manifested in the form of atypical requests to resources by users. The paper proposes a method based on data mining. Its essence lies in the classification of users' behavior on the basis of information about their actions using an artificial neural network. As a basis for the implementation of the proposed tools, site security audit tools are used as a source of information. The structure of neural network, training methods and practical application are described, and the effectiveness of the proposed methods is evaluated.

    Keywords: Data mining, artificial neural network, web-design, machine learning, classification

  • Software implementation modeling tasks of the main integral indicators of economic information systems functioning

    This article describes a software package to solve the problem of optimal placement of information resources-fragments of a distributed database on the nodes of a distributed economic information system by the criterion of the minimum average response time of the system to user requests. The software complex consists of software-implemented mathematical models of distributed systems of processing economic information on the basis of file-server, two-level client-server and three-level client-server architecture, as well as optimization algorithm. The developed software product also allows to make experiments for obtaining and subsequent analysis of the dependence of the reactivity of distributed systems on such integral characteristics as the dimension of the problem, the intensity of the formation of requests by users, the speed of message transmission through communication channels, the speed of reading, the speed of writing and processing in the nodes, which allows to implement a more rational organization of the computational process in the system. The software was implemented in C#, the NetFramework 4.6.1 platform, using the Microsoft Visual Studio 2017 Community development environment.

    Keywords: economic information system, distributed information processing system, architecture "file-server", two-level architecture "client-server" three-level architecture "client-server", the global balance equation, a closed exponential queueing network

  • Factors of process quality of piggyback transportation

    The article discusses the application of the theory of qualimetry and product quality management for the creation and operation of piggyback transportation in Russia. Their implementation requires a comprehensive study of technical, technological, organizational, investment and legislative issues. The specificity of the provision of this transport service by rail in the regulatory aspect is shown. A multilevel system of factors influencing the quality of the process of railway piggyback transportation has been formed and substantiated. The first level factors that have the most significant impact include: personnel, materials, equipment, technology, organization and the external environment. These factors characterize the actions of production personnel, material support, the state of technical means and mechanisms, the technologies used, the managerial component, as well as the external environment in which piggyback transportation is carried out. Structural grouping of factors is presented in Ishikawa diagram. Three characteristics of the process quality of piggyback transportation are highlighted - safety, timeliness and cost effectiveness. The use of factors allows you to create a range of quality indicators and methods for their evaluation, as well as to develop measures to improve the quality of transport.

    Keywords: transport, piggyback, piggyback traffic, transport service, process quality, factor, Ishikawa diagram

  • Structural-parametric links of software product modules within the life cycle management system

    The article deals with the parameters of communication modules of software products within the product life cycle management system. Classification of types of connections and coupling of elements is carried out. Parameters of instability of software products are introduced.

    Keywords: life cycle, life cycle of a product, model of life cycle, innovative activity, system engineering

  • The task of preventing malfunction of the technological object of the petrochemical complex based on the analysis of statistical sampling

    The most popular types of statistical analysis are considered. The article focuses on the analytical review of statistical methods, advantages and disadvantages. The stages of a statistical survey of a technological object are shown. Using the example of studying the mechanical part of a gas pumping unit, the advantage of using statistical methods is shown.

    Keywords: statistical analysis, technical diagnostics, petrochemical complex, gas pumping unit, distribution, minimum risk method, minimum error method, minimax method, Neumann – Pearson method, maximum likelihood method

  • A Model of Economic Corruption as a Game in Extended Form

    A model of corruption based on the example of an examination is psesented as a game in extended form. Both specific values of payoffs and a general case are considered. A probabilistic setup of the problem is also proposed.

    Keywords: games in extended form, identification of models, economic corruption

  • Downshifting as a promising model of success in the modern world

    At present, there is a tendency in Russian society, which is connected with the fact that modern people strive, first of all, for self-realization. Very often, in the process of forming career strategies, a person thinks about whether he is happy in his position after having worked in an organization for over a year. Sometimes, such thoughts force a person to change the type of activity or completely change the place of work. Thus, such a pattern of behavior as downshifting can be formed, when a person radically changes the quality of his life, life priorities and value orientations. The author of the article, in connection with such a change in the model of career behavior, considers the reasons that can influence the reorientation of value orientations from material to spiritual.

    Keywords: downshifting, career downshifting, success, values, profession, income, chronic fatigue, yuppie, freelancing, family, freedom

  • Optimal physical parameters choice of ice melting in the contact network DC

    The physical process features at the point of contact of the electric rolling stock current collector and the contact wire in the system of traction power supply of DC Railways are considered. The choice of parameters of the combating icy frost formations on the wires of the contact network by melting ice method is justified

    Keywords: physical process, an electric arc, melting of ice, the estimated coefficients, the choice

  • Influence of Gc to crack propagation in glasses

    This article will analyze the effect of Gc on the propagation of cracks in glasses with different material properties. The analysis demonstrated that with decreasing Gc, the crack length will increase and, with a larger applied force, the effect of Gc on the crack propagation in the structure decreases.

    Keywords: fracture mechanics, fats fracture, Gc, crack propagation, Code_Aster, Solome Meca

  • Web service for integration into urban environment

    to simplify the process of integration of the user into a new urban environment, it is optimal to use a web service that allows, on the basis of location, to determine the nearest points that are of any informational nature, or grouped lists of interconnected points that form routes. The web service corresponds to the REST (representative State Transfer) architectural style and is developed on the Java 8 programming language platform. OOAP (object-oriented analysis and design) was used as a design methodology.

    Keywords: web service, web application, user, tourism, tourist route, attractions, coordinates, location

  • Means of knowledge representation and data extraction for mining situations

    In this paper, an analysis of the problems and tasks arising from the design of situational awareness tools has been carried out. As a result, it has been established that the approaches in this area do not satisfy the requirements for modern intelligent tools for operational decision support for the reasons for the lack of methods and tools reflecting the dynamics of information processes and a distributed information processing architecture with weakly structured properties. The methods of operating and extracting knowledge from semistructured dynamic information are proposed.

    Keywords: Situational awareness, poorly structured data, temporal information, dynamic structures, intellectual analysis

  • Model of a dynamic neuron with state memory

    The problems of synthesis of a model of dynamic neuron with state memory (DNSM) are considered in the paper. The introduction of a special additional parameter into the model of a neuron, defined as a state parameter, is substantiated. It is indicated that the parameter of the state of the neuron has the ability to vary with time depending on the nature of the information processes that occur in neighboring neurons of the network. This parameter in a certain way accumulates information about the history of the behavior of the neuron in accordance with the entered formal descriptions. The concept of a "strained neuron" is introduced, taking into account the above. This concept characterizes the degree of influence of a given neuron on the neurons surrounding it. On the effects of time-varying parameters of the state of neurons, it is proposed to implement the process of self-evolution of the network directly during its operation. A variant of the analysis of the structure of the neural network, created on the basis of the proposed model DNSM. The topological representation of a neural network in the form of a graph model allows formalizing the interaction of neurons in a network with each other, both in time and in space. For this, the concept of k-space is introduced, which determines the degree of proximity of neurons to each other. The degree of proximity of neurons allows one to formalize, in the form of mathematical relationships, the procedure for the exchange of information between neighboring neurons in a network. Mathematical relationships that formalize these processes are given. A variant of the structure of the hardware design of DNSM, focused on implementation using FPGA technology, is proposed.

    Keywords: dynamic neuron with state memory, connectionist model, self-evolutionary mechanism

  • Trends in the development of information technologies in the housing and utilities sector

    The paper discusses the main trends in the development of information technologies in the housing and utilities sector. The main direction of development of energy and water accounting systems is energy efficiency, which is achieved either through the materials used or through constructive solutions. Automated systems for commercial accounting of energy resources (AMR) allow you to combine disparate data from metering devices and transfer them to information processing centers. The use of AMR allows you to keep records of consumed resources, monitor leaks and losses, accumulate data for further processing and forecasting, as well as generate data arrays for the application of BigData technology and neural networks. In Russia, the data collector is the GIS utilities system. In the future, ASCME will become part of the organizational and technical concept of Industry 4.0.

    Keywords: measuring circuits, metering devices, Internet of Things, AMR, BigData, neural network

  • Development of the mobile application for searching bus transport using the Yandex.timetable API

    Describes the techniques used in the process of creating a mobile application running on the Android OS, to search for intercity bus passenger flights and associated cars, using API provided by Yandex. An aggregator is developed which, upon user request, displays the bus schedule and associated flights with BlaBlaCar. The main approaches that are used today for designing such applications are considered. Describes the tools and libraries that may be needed to solve the problem. The methods given in the article can be useful in developing such mobile applications. Android programming is based on Java programming language so if you have basic understanding on Java programming then it will be a fun to learn Android application development.

    Keywords: Java, Android, parsing, Jsoup, API Yandex

  • Approaches to solving the problem of introducing the digital economy (including digital energy) in the Russian Federation

    The paper discusses the technological barriers arising from the transition to a digital economy, in particular in the housing sector. The technological barrier consists generally of three components. The first component is that the development of IT technologies requires the initial accumulation of a large amount of data. Metering devices for this task are not suitable due to their functional tasks. The second component is the lack of interest on the part of end users. The third component is information security. One approach to solving the problem is to apply and implement the BigData concept.

    Keywords: Semenistaya E.S., Leonova A.V.

  • Simulation modeling of employee satisfaction in organizations

    Article is devoted to process of development a simulation model of satisfaction with work employees in the organization. In article influence of various factors on satisfaction with work of the worker is considered. The basis of this work was formed by theoretical approaches to the organizational conflicts and motivation of personnel of foreign and domestic researchers. A simulation model of job satisfaction is based on the paradigm of system dynamics. Process of simulation of model allows to show visually under the influence of what factors there is a transition of conditions of workers from "satisfied" in "unsatisfied" / "conflicting " and back.

    Keywords: conflict, organization, simulation modeling, advanced training, job satisfaction, factors, system dynamics

  • Model of agreement of private and public interests in the implementation of innovations

    This article examines the structure of the mathematical model, which is based on the agreement of private and public interests of agents. The main task of modeling is to review the possible options and determine the appropriate strategy to maximize revenue for those promoting innovations. The first option is the public interest (interest of the enterprise). In this version, agent promotes innovation, for which he receives encouragement from the supervisor. The second option is a private interest (personal interest of agent). Here agent is engaged in third-party activity, which also brings him income. The model is hierarchical, two-level. The algorithms for constructing equilibria for different game strategies are given. The numerical implementation of the proposed algorithms is based on simulation modeling. Numerical calculations are carried out. A comparative analysis of the effectiveness of various management mechanisms for the model of innovative development of the enterprise is given.

    Keywords: Stackelberg game, Stackelberg game with feedback, hierarchy, simulation, innovation process, motivation

  • Analysis of the stability of the trend parameter in the time series of a technical object with the use of the Hurst exponent

    Predictive assessment of the technical object is based on the determination of the possible values of the controlled parameters in the projected time period and is carried out during the operation of the object. Calculations are usually done in the background and it is important to estimate the minimum sample of parameter values that can be used for prediction. The article shows the possibility of using the Hurst indicator to determine the persistence of the time series of the object parameter and presents a scheme for estimating the minimum sample size, which can be used to reliably predict the parameter change using time series forecasting methods.

    Keywords: time series, Hurst exponent, forecast, estimate, trend, stability, persistence, value, parameter, object, data array

  • Hybrid algorithm application for inhomogeneous minimax problem solution by using strong mutation

    The article deals with the problem of the minimax solving that are a typical problem for the theory of schedules. As a possible method for solving this problem, we consider a hybrid model, which is one of newest of genetic algorithms. A effency this model based on comprasion result accuracy, obtained by using two-point crossover, hybrid algorithm, simple and strong mutations.

    Keywords: two-point crossover, hybrid algorithm, modified Goldberg model, mutation, minimax problem, scheduling theory, strong mutation, individual, generation

  • Model of an intellectual information system for recognizing users of a social network using bioinspired methods

    Today one of the topical issues is the practical application of the theory of pattern recognition, face recognition, including the definition of a person in the image and its subsequent identification. Such tasks include the extraction of indirect signs of interaction between users of social networks. By identifying the user's face and further searching it in photographs and video files in other profiles, an expansion of the list of basic data available to the analyst is achieved. It is known that the system of computer vision, which is able to recognize faces in a natural and artificial environment under any conditions, has not been implemented to date. One of the obstacles is the variation of the scene - the area where the face is being identified. The article proposes a model of an intelligent information system using bion-spirited methods for preprocessing images in order to expand the range of allowable scene variations.

    Keywords: pattern recognition, object identification, photometry, intellectual system, social networks, analysis

  • Resource management technology for maskirators for information directions of distributed integrated infocommunication systems of the departmental purposes

    When using maskirators for information directions of distributed integrated infocommunication systems of the departmental purpose (ID DI ICS MP), it becomes necessary to make an informed choice of their characteristics. The resource management method of the ID DI ICS MP maskirators refers to ensuring the security of the ID DI ICS MP, and is used to achieve the required nominal power of the ID maskirator, which is achieved by justifying the choice of the number of IDs and the rate of change of IP-addresses when average rate of generation of information packets by the correspondent varies.

    Keywords: Information technologies, distributed integrated infocommunication systems, masking of the information directions, threats to functioning, information exchange.

  • Damage to logging machines under operating conditions

    The system analysis of types of damage of logging machines and their damage during operation is carried out. It is found that a significant impact on the machines reliability has mechanical energy and thermal energy. Mechanical energy affects all components and parts in the form of static and dynamic loads, which leads to the wear of mates, the emergence and development of fatigue cracks, plastic deformation or quasi-brittle fracture. The main attention is paid to the consideration of the influence of low temperatures in the operation of forest machines in winter on the properties of metals and, consequently, on the level of their reliability. It is recommended to use more widely such characteristic of materials as fracture toughness to assess the reliability of the design.

    Keywords: Logging machine, reliability, damage, operating conditions, low temperature, fracture toughness

  • Trajectory control of an electric vehicle using the RRT algorithm for movement planning in urban environments

    The article is devoted to the problem of planning the trajectory of an unmanned vehicle-electric vehicle. The results of the development, software implementation and research of the algorithm for constructing the optimal trajectory of the unmanned vehicle in a well-known environment - part of the urban environment are presented. As a basis, a fast-growing random tree (RRT) algorithm was used to construct a path between two points. At the same time, it was optimized regarding the algorithm for removing unnecessary vertices in order to build the optimal trajectory as well as taking into account the vehicle’s kinematic constraints using the Dubins curves on the turning radius of a transport electric vehicle for entering turns. As input data, a binarized map of the city’s terrain was used, as well as set coordinates of the starting and ending position of the vehicle. Research is also conducted on the speed of calculating the RRT method, depending on the system power.

    Keywords: unmanned vehicles, electric vehicles, motion planning methods, sampling methods, RRT algorithm, Dubins curves

  • Forecasting the number of employees in the Russian economy, taking into account the impact of the pension reform 2018

    The article is devoted to the study of changes in the number of employed in the economy of the Russian Federation, which should occur as a result of the pension reform in 2018. As the dominant deterministic factor of forecasting the average variant of demographic forecast of the population of the Russian Federation till 2030 is used. The factors of influence are the levels of employment in the context of annual age and gender categories. The growth of the average age of the employed population in Russia and the oscillating "sawtooth" behavior of the labor outflow coefficient during the transition period of the reform from 2019 to 2028 are shown. At the time of the reform, the annual need of the economy for personnel will significantly decrease, which will cause difficulties in finding work for the bulk of job seekers – graduates of the vocational education system, who enter the labor market every year.

    Keywords: number of employees, economy, retirement age, pension reform, labor market, demography, natural-age retirement, forecasting