ISSN 0236-235X (P)
ISSN 2311-2735 (E)

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Higher Attestation Commission (VAK) - К1 quartile
Russian Science Citation Index (RSCI)


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Publication date:
16 September 2024

Journal articles №4 2013

31. Optimal routing using the network congestion criterion [№4 за 2013 год]
Authors: Dmitriev G.A. ( - Tver State Technical University, Ph.D; Margolis B.I. ( - Tver State Technical University, Ph.D; Muzanna M.M. ( - Tver State Technical University;
Abstract: The article considers the network information flow model with reroute messages for any number of switching nodes and links. There are criteria for optimizing with time-delay messages and the maximum network congestion, restrictions for the capacity of the channels and the conservation of flows in the network. An example of a network consisting of five nodes and seven channels of communication is described. It is shown that the problem of optimal routing refers to non-linear optimization of several variables function with inequality constraints and equations. Inequality constraints are formulated for channel capacity and the type of equations for the conservation of flows in the network nodes according to their division into input node, output node and intermediate nodes. Based on the standard fmincon function, a program as developed in MatLab. It allows finding the optimal distribution of flows in the network consisting of an arbitrary number of nodes and links according the topological structure of the network, the input flow and capacity of channels. The article shows the results of the optimum flow separation calculation using criteria of congestion and delays for the considered example. The analysis of changes in the criteria of maximum load at different intensities of the input stream is made. It is shown that the determination of the optimum distribution of channels load while separating each channel to any number of lines can be done using analytical optimization techniques. There are results of the calculation of the optimum flow separation on two links by load for the considered example.
Keywords: optimal routing, switching node, communication channel, the average message delay, maximum load carrying capacity, capacity, nonlinear optimization, inequality constraints and equations, input stream, topology, information network
Visitors: 11898

32. Application of soft computing for to analyse the knowledge base structure of information system [№4 за 2013 год]
Authors: ( - , Ph.D; ( - ;
Abstract: The article investigates the possibility of using genetic algorithms and neural networks for preliminary analysis and optimization of the structure of the information system knowledge base. It describes an example of constructing the structure of a neural network. The structure of the links between analyzed objects and its clustering representation is described after performing of the analysis. As a result, there is a list of classified objects according to given list of features. The study can be used by public and private organizations involved in the management of scientific and technical complex. For example, in the areas of patents, program and project management, storage and processing scientometric information.
Keywords: artificial network, generic algorithm, soft computing, forecasting, information system
Visitors: 14470

33. Software implementation of slabs automatic identification system [№4 за 2013 год]
Authors: ( - ; ( - , Ph.D;
Abstract: The structure of hardware and software complex (SALI) for slabs moving tracking between warehouse and main manufacture equipment is described in the article. It considers automatic metalrolled manufacture complex production monitoring. Distinctive feature of the system is algorithm of automatic slabs identification (bulky metal units) which allows identifying the moving object with high accuracy. It can make the workers of crane free from their routine of slab number or code identifying. One of the logic units of algorithm is automatic step-by-step product label identifying. The result of label detection steps is calibration of camera moving mechanism position and zoom for getting primary hi-res image of load with label, its analysis, label scanning and recognition. There are the results confirming efficiency and reliability of the method.
Keywords: barcode, identification, localization, technique, identification, crane, slab
Visitors: 10481

34. Soft computing technologies in intelligent control [№4 за 2013 год]
Authors: A.G. Reshetnikov ( - Dubna State University, Institute of the System Analysis and Control (Associate Professor); ( - ; Ulyanov, S.V. ( - Dubna State University – Institute of System Analysis and Control, Dubna, Joint Institute for Nuclear Research – Laboratory of Information Technology (Professor), Ph.D; Barkhatova I.A. ( - Dubna Internacional University for Nature, Socitty and Man;
Abstract: The article consideres the methods and capabilities of knowledge base design based on models of intelligent control systems in the autonomous mode and remote-controlled mode (USB cable and Wi-Fi). As an example authors take a physical dynamically unstable “cart – pole” type object (typical Benchmark). The paper focuses on developing intelligent control methodology with /without ill-structured mathematical model of control object. The teaching signal designed off-line using a mathematical model, and on-line directly from a physical object using “knowledge base optimizer” tool. The comparison of control systems based on PID controller and fuzzy controllers in three modes is introduced. The possibility of effective remote configuration of a fuzzy controller without a mathematical model of the control object is discussed.
Keywords: fuzzy controller, intelligent control, knowledge base optimizer, generic algorithm, soft computing
Visitors: 14145

35. Robust intelligent control based on quantum computing technology [№4 за 2013 год]
Authors: A.G. Reshetnikov ( - Dubna State University, Institute of the System Analysis and Control (Associate Professor); ( - ; Ulyanov, S.V. ( - Dubna State University – Institute of System Analysis and Control, Dubna, Joint Institute for Nuclear Research – Laboratory of Information Technology (Professor), Ph.D;
Abstract: The article describes the technology of robust intelligent control system design based on quantum fuzzy inference in two versions: using remote object connection and using verified mathematical model. Developed design methodology is used based on knowledge self-organization. It improves the robustness of intelligent control systems in unforeseen situations. The information sources for fuzzy controllers design are devided into two types: the first includes inaccurate mathematical model (with sub-definite parameters) of control object, and the second is based on the process of measuring the teaching signal from the real control object. A comparison of simulation and experimental results for physical test of PID controller, fuzzy controllers and quantum fuzzy controllers with different types of correlations is considered. The efficiency of using the quantum fuzzy inference to improve the robustness of intelligent control in emergencies management situations is confirmed.
Keywords: quantum fuzzy inference, quantum information, knowledge base, self-organization, a quantum algorithm, intelligent control
Visitors: 12512

36. Kalman fuzzy filter in the structure of the algorithm solving inverse problems for economic objects [№4 за 2013 год]
Author: ( - ;
Abstract: A method solving inverse problems using Kalman fuzzy filter considering specific economic facilities, such as the inability to build a physical model of the process or phenomenon has been proposed. The algorithm is based on the transition from the system description in the form of a Fredholm integral equation of the type I to the form of the discrete Kalman filter, as well as the using fuzzy logic to set the elements of filter equations. The method for solving inverse problems is based on object output process data, which is usually the result of any parameters measurement. The measurement noise results in a further decrease of the solutions accuracy. Therefore it is appropriate to use filtration which reduces this impact. As for economic object, the measurement noise can be interpreted as statistical data precision, inaccurate analysis and expert models used in the interpretation of its operating results and others. To reduce experts subjectivity contributed to the knowledge base, it is proposed to apply fuzzy cluster analysismethods and adaptive neuro-fuzzy systems methods allowing automatical synthesizing the knowledge base structure. MatLAB has been used as a software development environment, because it has a library to create adaptive neuro-fuzzy systems (ANFIS-editor).
Keywords: Kalman filter, fuzzy logic, inverse problems, intelligent control
Visitors: 12790

37. Architecture of intelligent information support system for innovations in science and education [№4 за 2013 год]
Authors: Ivanov V.K. ( - Tver State Technical University, Ph.D; Palyukh B.V. ( - Tver State Technical University, Ph.D; A.N. Sotnikov ( - Joint Supercomputer Center of RAS (Professor), Ph.D;
Abstract: The search for innovative solutions using different data sources is an important part of many lines of business, science and education. One of the main trends in the development of methodologies and solutions for search innovation is an automated semantic processing large volume of scientific and technical information that allows searching for breakthrough technologies and other innovative ideas. Obviously, there is a need in efficient methods of digital collections creating and filling with the latest ideas and technologies that contain not just their descriptions, but specially selected, classified and associated data. The development of new methods to search for ready-made solutions in the data center database is the essence of the Information Support System for Innovations in Science and Education. The article describes one of the approaches to finding information on innovations and its scope. The software common architecture and pilot components are presented. The relevant software architecture, including its functionality and behavior of the system during a given session is described. The object model for working with documents is presented. The document is any text object that is relevant to the subject matter of processing: query, search result, text document. There is information about the current state of the ongoing project.
Keywords: service, data classification, innovations, search algorithm, software architecture, decision support
Visitors: 11216

38. Performance investigation of self-configuring genetic algorithm for spacecrafts' control systems effective variant choice [№4 за 2013 год]
Authors: Semenkin E.S. ( - Academician M.F. Reshetnev Siberian State Aerospace University; ( - ; ( - , Ph.D;
Abstract: The work of the spacecraft control system is modeled with Markov chains. The models for the technological and command-programming control contours are developed. The way of the calculation of the control contour effectiveness indicators (readiness coefficients and others) is described. The problem of choosing an effective variant for a spacecraft's control system is formulated as a multi-scale optimization problem with algorithmically given functions. Special self-configuring genetic algorithm is suggested to use for choosing effective variants of spacecraft control systems as it is very reliable, has no requirements to settings determination and parameter tuning and requires no expert knowledge in evolutionary optimization from end users (aerospace engineers). The high performance of the suggested algorithm is demonstrated by solving optimization problems. It was shown that the algorithms require the examination of small part of the search space to find solution that greatly accelerates the process of search for a solution of the problem of choosing effective variants of spacecraft control systems.
Keywords: self-configuring, generic algorithm, effective variant choice, optimisation, Markov chains, control contours models, spacecraft control system
Visitors: 11245

39. Software system for ionospheric measurements data processing [№4 за 2013 год]
Author: Skripachev V.O. ( - Joint Stock Company "Russian Federationn Space Systems";
Abstract: The authors propose a software system to determine the ionosphere parameters by radio probing means. This system helps to get information about environment parameters in order to further diagnose the disturbances, both natural and artificial character, and to specify the known ionospheric models. The developed software system is designed to restore the profiles of the electron density in the ionosphere using signals from navigation satellites GLONASS/GPS. Object-oriented programming was used to develop the system. This reduces the time develop new classes, inheriting them from already existing in used software libraries. The object-oriented approach has been implemented when developing the code responsible for the total electron content calculation according to signals characteristics of navigation spacecraft. Therefore interaction between system blocks is also performed based on object data structures. Prospects of future work suppose building the capacity of the represented software system using the software products for ionospheric sounding data processing, and that data is obtained by vertical sounding of the ionosphere and incoherent scattering techniques.
Keywords: total electron content, receiver, ionosphere, software package, navigation spacecraft, information provision
Visitors: 20633

40. Interactive Data Language application for radiometric systems data processing [№4 за 2013 год]
Author: Skripachev V.O. ( - Joint Stock Company "Russian Federationn Space Systems"; Polushkovsky Yu.A. ( - Joint Stock Company "Russian Federationn Space Systems"; ( - ;
Abstract: When researching the "atmosphere – the underlying surface" system, a large amount of data is used that must be processed quickly. It is advisable to use applications written in the Interactive Data Language for detailed on-line radiometric data processing. A syntax is quite simple in the Interactive Data Language. It is not necessary in cycles preparation and run-time functions optimization for working with arrays. The paper discusses the features of the language, descriptions of its classes and objects. There is a brief overview of the scientific data visualization by Interactive Data Language tools including mapping capabilities. The possibilities of Interactive Data Language to build a graphical user interface are considered. These features have been implemented for creating data processing applications of satellite’s microwave radiometers to determine the meteorological parameters. The HDF data format and developed application architecture are given.
Keywords: program module, interface, render, data processing, class, subject, radiometer, software product
Visitors: 21117

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