Cybernetics and programming
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MAIN PAGE > Journal "Cybernetics and programming" > Contents of Issue № 02/2018
This issue is currently being formed. All articles presented on this page have already been included in this issue, are considered published, and will remain unchanged in the final version of the issue along with other metadata of the articles.
Учредитель: Даниленко Василий Иванович, w.danilenko@nbpublish.com
Главный редактор: Сидоркина Ирина Геннадьевна, доктор технических наук, igs592000@mail.ru
Contents of Issue № 02/2018
Belikova M.Y., Karanina S.Y., Karanin A.V., Glebova A.V. - Visualization and analysis of WWLLN network data on the territory of the Altai-Sayan region using Web-GIS pp. 1-8


Abstract: At present, the technology of creating information and analytical systems in the field of climate-ecological monitoring has been developed quite well. The construction of such systems is based on the use of GIS and Internet technologies and includes both data from monitoring stations and remote sensing data. The article describes the architecture of a web application that implements elements of GIS technologies and is developed to solve the tasks of collecting, storing, visualizing, searching and analyzing information on lightning discharges recorded by the World Wide Lightning Location Network (WWLLN). The software and technology platform of the system is based on the use of freely distributed technologies and software, including the Ubuntu operating system, the NGINX web server,  Python  as the main development language and the Django framework, the PostgreSQL / PostGIS database, the GDAL libraries, the OpenLayers. The WWWLNN archive data and the results of clustering are included in the web-GIS database. The system provides the feature of selecting information about lightning discharges, as well as performing cluster analysis for the sample obtained. The developed web-based GIS can provide specialists with convenient web-based tools for using WWLLN data to study regional climatology of lightning activity. 
Automated systems of engineering process administration
Galemov R.T., Masalsky G.B. - Planning the trajectory of the manipulator for a moving target pp. 9-28


Abstract: Authors present a modified combined search method for solving the inverse problem of the kinematics of a multi-link manipulator under conditions of target motion. A genetic algorithm was used for the initial approximation to the goal and simplex search to improve the results of the genetic algorithm. Compensation of the effect of the movement of the target on the objective function is based on estimates of the drift of the target along each axis of the working space. These estimates were used to subtract the contribution of drift to the objective function, which improves search efficiency. The estimates were calculated by the recursive least squares method. Experiments were carried out on mathematical models of planar and spatial, kinematically redundant and non-redundant multi-link manipulators. The results showed that for all the above manipulators it is possible to plan the trajectory according to the position and orientation of the working member, and the constructed trajectories in the generalized coordinates are smooth and do not have abrupt changes. The combined search method finds the solution of the inverse kinematics problem for one iteration of the search procedure due to the global properties of the genetic algorithm and the efficiency of the simplex search.
Data encryption and data protection
Sivachev A.V. - Increasing the efficiency of steganoanalysis in the area of discrete wavelet image transformation by analyzing the parameters of the frequency domain of the image pp. 29-37


Abstract: The object of the study are the methods of stegan analysis in the area of discrete wavelet transformation of an image. The author investigate the influence of the fact of embedding in the region of a concrete wavelet transformation on the values of the coefficients of the regions of discrete cosine transform and image in order to improve the efficiency of detecting the fact of embedding into the discrete wavelet transformation domain. The influence of the fact of embedding in the region of discrete wavelet transformation on certain coefficients of regions of discretely cosine transform and discrete sine transformation of the image is shown. The author proposed to use certain coefficients to improve the quality of training of the support vector machine. Method of research: to assess the effectiveness of the steganoanalysis method proposed in the article using the proposed coefficients, a comparison of the efficiency of image classification with other popular steganoanalysis methods for the wavelet decomposition region is performed. As a steganographic influence, the values of the least significant bits of the coefficients of the discrete wavelet transform are used. Main results of the study is the possibility of using certain coefficients of discrete cosine transform and discretely sinus transformation of the region with the purpose of steganoanalysis in the region of discrete wavelet transformation is shown. According to the results of the study, an original method of steganoanalysis is proposed, which makes it possible to increase the efficiency of steganoanalysis for the LH and HL regions of the discrete wavelet transformation of the image. The obtained results can be used in the development of steganoanalysis systems to provide an effective detection of the fact of embedding into the discrete wavelet transformation region of an image.
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