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ABSTRACTS OF ARTICLES OF THE JOURNAL "INFORMATION TECHNOLOGIES".
No. 11. Vol. 23. 2017
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V. V. Savchenko, Dr. Sci. Tech., Prof., e-mail: svv@lunn.ru, D. Yu. Akatyev, Cand. Tech. Sci., Ass. Prof., e-mail: akatjev@lunn.ru, Nizhniy Novgorod State Linguistic University of N. A. Dobrolyubov, Nizhniy Novgorod, 603155, Russia
Information Technology of Psychocorrection of an User Emotional State Based on his Oral Reading
Using the universal information-theoretical approach in the Kullback—Leibler metric, the task of developing and researching a new information technology for the psycho-correction of the user's emotional state based on phonetic analysis of his oral speech during reading is being and solved. The pilot software implementation is considered; full-scale experiment is conducted. It is shown that the advantage of the new technology in comparison with its analogues is the efficiency of the procedure while maintaining absolute privacy.
Keywords: speech, speech analysis, speech signal, speech information technology, the problem of small samples, information-theoretical approach
P. 771–775
T. M. Volosatova, Supervisor, Ph. D., Ŕss. Prof., P. A. Voronina, Master Student, A. A. Kozar, Master Student, BMSTU, Moscow, 105005, Russia
Simulation Modeling of Information Security Threats Systems Modular Avionics
Presented the results of research and analysis computing means in the complexes of communication and navigation of the aircraft, conducted with the aim of building a formal threat model. On the base of the analysis of available literature is shown that the problem of safety increases. Analysis of available sources showed that the increasing level of automation of advanced aircraft engines, avionics, systems and components aircrafts, the increasing complexity of onboard information systems, the problem of protection of automated systems aviation technology from information security threats takes the significant importance. The possibility of simulation of attacks on the above-mentioned systems using the apparatus of Petri nets is shown.
Keywords: Avionics, automated systems, security, computer systems, information, module, platform, Petri nets
P. 776–782
R. V. Tretyakov, Head of Department, e-mail: tretyakovrv@gmail.com,
AO "SberTech",
Je. M. Dimov, Professor, e-mail: e.m.dimov@gmail.com, O. N. Maslov, Professor, e-mail: maslov@psati.ru,
R. R. Khalimov, Assistant Professor, e-mail: khalimov@bk.ru, Povoljskiy State University of Telecommunications and Informatics, Samara, 443010, Russia
Software Development Process Management Improvement Based on Mathematical Models and Simulation Modeling Technology
In the article the questions of increase of efficiency of management of the non-deterministic software development processes considered, which are under significant influence of the human factor. As the mechanisms to improve this processes the processes management technique proposed by the authors, which is based on developed mathematical models and statistical simulation modeling technology. Developed mathematical model includes a set of metrics (a set of evaluation criteria) to measure the development process implementation and a quality of work of its participants (performers), enabling you to get an objective assessment of the current state of the managing process from the point of view of management of the development process and make informed decisions of correcting the process in a timely manner. Once obtained various management decisions for adjust the controlled process, these decisions are input to a statistical simulation model to simulate and evaluate with predetermined criteria their impact on the controlled process in order to select the best solution in the current operating conditions of the controlled process. Usage of the results that was obtained in a statistical simulation allows the management to minimize a possible risks and negative human factor influence in the decision-making process. Described in the article results, approaches and tools have been applied to the software development process in a large IT-company engaged in software development, and allowed it to ensure improvement of the controlled development processes management efficiency by minimizing the impact of the human factor on the management processes, minimize the risks and make more informed and timely management decisions.
Keywords: software development process management, management improvement, simulation modeling
P. 782–790
N. N. Svetushkov, Ph. D., Associate Professor, e-mail: svetushkov@mai.ru Moscow Aviation Institute (National Research University), Moscow, 125080, Russia
Integral Description of the Heat Transfer Process for Numerical Modeling High-Speed Harding of Rolling Rolls
The article describes a new approach that has been applied to numerical modeling of heat transfer processes in the high-speed hardening of rolling rolls. Despite the fact that there are a large number of numerical methods for solving the heat conduction problem based on finite differences and finite elements, all of them have certain drawbacks, the main one of which is the impossibility to estimate the accuracy of the numerical solution (only qualitative estimates are used for the magnitude of the grid-partition step). The paper presents the integral equations obtained, which describe the heat transfer process in the two-dimensional case in media with changing thermo-physical characteristics and boundary conditions of the second kind. The required functions in these equations are the derivatives of the heat flow densities in the corresponding directions, and the temperature distribution function is calculated by integrating them over time. The approach based on integral heat transfer equations allows one, on the one hand, to use convergent iterative procedures to find a numerical solution, including for problems in which the thermophysical characteristics of the material depend on temperature, and on the other hand, to estimate the accuracy of the computation along the error vector in each The grid decomposition point. An important advantage of the integral equations obtained is that there is no need to reconcile the continuity of temperatures and heat fluxes at the interface of different media, which is important for problems with phase and structural changes. The article presents the results of numerical modeling performed in the software environment developed by the author, which allows: creating complex geometric objects, defining initial and boundary conditions for the non-stationary heat conduction problem, and displaying the results in the form of color maps.
Keywords: numerical modeling, heat transfer equations, integral description, heat treatment, accuracy
P. 790–796
V. N. Gridin1, D. Sc., Professor, Scientific Director, N. G. Ryzhov2, Ph. D., Associate Professor, Head of Department, V. I. Anisimov1, 2, D. Sc., Professor, Chief Scientific Officer, vianisimov@inbox.ru,
M. M. Abukhazim2, Graduate Student,
1Center of information technologies in design of RAS, Moscow region, Odintsovo,
2Saint-Petersburg Electrotechnical University, Saint-Petersburg
Methods to Boost Performance Modeling of Dynamic Modes of Nonlinear Systems
Methods of calculation performance increasing of the dynamic modes of nonlinear systems are considered. The mathematical description of nonlinear schemes is provided in the dynamic mode on the basis of forming and the solution of the equations of the scheme in an implicit algebro-differential form. The technique of creation of discrete models of frequency-dependent components of the modelled scheme on the basis of using of implicit methods of Gere of the highest orders is described. The flowchart of calculation of the dynamic modes of nonlinear systems containing a cycle of temporary sampling and a cycle of linearization for the solution of the nonlinear equations by means of circuitry interpretation of an algorithm of Nyuton—Rafson is provided. The description of the main methods of compact storage and handling of the rarefied matrixes is provided and the comparative efficiency evaluation of compression of data on their basis is given. For practical implementation of the highly effective software of modeling of the dynamic modes of nonlinear systems the article presents the method of index and address matrixes that makes it easy to bring the software to the desired compact form, and the method of list schemes of the Whip having the greatest opportunities for scanning of matrixes in any direction.
Keywords: systems of automation of circuitry designing, modeling of systems, discrete models of components, compact handling,
the rarefied matrixes
P. 796–802
A. V. Terekhin, Ph. D., Assistant Professor, e-mail: terehin_murom@mail.ru Murom Institute (Âranch) of Vladimir State University named after Alexander G. and Nicholas G. Stoletovs, Murom
The Algorithm for Calculation of the Invariant Features of Non-Convex Image Projections of Randomly Located Three-Dimensional Objects
The quality of finished products in industry is largely dependent on the accuracy of the assembly. When mass production allowed manual assembly of individual production units, with the mass production of its availability in many cases is undesirable and sometimes impossible. The use of systems of automatic recognition (SAR) caused by an increase in requirements for conformity of the goods quality standards and the need to reduce the "human factor". Such systems can be used in industrial production, as well as in laboratory and scientific papers. Objects features are an integral part of any system of automatic recognition. Such systems are used in industry, in the processes associated with the use of conveyor lines (automatic assembly, painting, welding, installation of surface-mounted components, and others). In the case of an arbitrary arrangement of objects in the scene, an important property is the invariance of the selected features to the displacement, rotation and zoom. This research is aimed at developing algorithms for calculating the invariant features of non-convex projections of three-dimensional objects. The article presents the basic definitions, algorithm for calculating form features, the results of research developed features on the test images of flat geometric figures and projections of real three-dimensional objects.
Keywords: automatic recognition system, three-dimensional object, identification, flat nonconvex image, diagonal form features, pattern recognition, image analysis, diagonal segment, object shape, invariant coefficients
P. 803– 807
T. I. Mikheeva, D. Sc. Professor., e-mail: mikheevati@its-spc.ru, A. A. Fedoseev, Candidate, e-mail: fedoseevale@gmail.com, S. V. Mikheev, Ph. D., Assistant professor, e-mail: mikheevati@its-spc.ru, Î. K. Golovnin, Assistant, e-mail: golovnin@bk.ru, Samara University, Samara, 443086, Russia
Method of Transport Net Thematic Layer Synthesis via Remotely Sensed Imagery
Nowadays modernization of transport infrastructure is an essential part of a government economic development. Growth of road units and their stretch is one of the high-priority activities in a process of federal and regional transport infrastructure modernization. However, the issue of an immediate identification and tracking the variation of road network items, as well as the definition of features and a state of transport infrastructure facilities and a highway transport load becomes up-to-date. In view of the vast area and a big amount of subjects of the Russian Federation, it is necessary to develop and implement ways to solve above issues based on space survey materials. These materials are supposed to develop mapping with corresponding subject layers that can display objects of interest — road network elements and transport items.
Keywords: thematic layer, transport net, dynamic objects, satellite imagery, pixel value, pixel values standard deviation, immanent properties, feature space
P. 808–816
S. L. Belyakov, D. Sc., Professor, e-mail: beliacov@yandex.ru, M. L. Belyakova, Ph. D., Assistant Professor, e-mail: mlbelyakova@sfedu.ru, M. N. Savelyeva, Ph. D., Senior Researcher, e-mail: msavelyeva @sfedu.ru, Southern Federal University, Taganrog, Russia
Intelligent Control of the Dialogue in the Visual Analysis of Complex Maps and Schemes
We consider the problem of visual analysis of complex plans, schemes and maps for solving of difficult formalized tasks. We analyze the dependence of the level of perception upon the visualization complexity. We introduce the concept of the utility of the visual image, it is described by the behavior of the empirical utility function. The utility function depends on the number of graphic primitives of the image. The function takes a maximum value in the case where the number of primitives coincides with the limiting subjective level of perception of the user. This value is specified when configuring the visualization system. We propose an optimization model of the utility, which is based on picture representation by two components. The first component is a skeleton of workspace. The skeleton includes primitive attributes of map or scheme, which selected from a database corresponding to the user's request. The second component is the skeleton environment intended for filling of the skeleton by information details. The environment primitive attributes increase the semantic level of visualization. Selection of the environment primitive attributes is provided by a set of expert rules. The set of rules is divided into classes corresponding to the professional user orientation. We give a formal statement of the optimization problem of visualization utility. It describes the operation of picture manipulation. Examples are shown of practical applications of visualization for two classes of visual images.
Keywords: visual analysis, intelligent control, cartographic visualization, geoinformation systems, visualization
P. 817–825
V. I. Levin, D. Sc., Professor, Penza State Technological University, Penza, 440039, Russia
Modeling and Quantitative Estimation of Efficiency of Scientific Research
The essence of the bibliometric approach to modeling and evaluating scientific research is presented. The bases of the theory of bibliometric indicators are considered. The baseline data for the evaluation of these indicators are established. Two universal method of this evaluating (measuring and the method of moments) are proposed. Some examples of calculating these estimates by these methods are given. The study showed that the calculation of bibliometric indicators is only the first stage of the assessment of research results of the process, followed by an second stage — expert evaluation.
Keywords: modeling of science, bibliometrics, publication, citation index, the efficiency of research
P. 826–833
S. A. Kryazhev, Project Manager, e-mail: Sergey.Kryazhev@norbit.ru, NORBIT Ltd., Moscow, Russia E. V. Kuznetsova, Associate Professor, e-mail: Ev.Kuznetsova@hse.ru, National Research University Higher School of Economics, Moscow, Russia, E. N. Makarov, Project Manager, e-mail: Evgeny.Makarov@norbit.ru, NORBIT Ltd., Moscow, Russia
IT-Portfolio Management as a Tool of IT Strategy Implementation
It is shown that the successful IT Strategy implementation can be fulfilled only by integration of strategic and portfolio management processes. The authors propose replicable approach to IT project portfolio defining in IT Strategy development. The list of criteria intended for IT framework choice and IT projects evaluation based on the weighted criteria sum method is defined. The generic IT project profile for initiative assessment is designed. The features and benefits of advanced business modeling and project portfolio management software tools using for IT Strategy design and portfolio defining are shown. The proposed approach is illustrated by practical examples.
Keywords: IT strategy, portfolio management, IT projects, project profile, portfolio defining processes, project evaluation criteria, weighted sum method
P. 833–840
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