Software & Systems

Articles of journal № 2 at 2021 year.

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11. Algorithms of the automatic text analysis for the Russian language for solving applied problems using TAWT framework [№2 за 2021 год]
Authors: E.V. Politsyna , S.A. Politsyn , S.A. Porechny
Visitors: 3886
The paper reviews the existing tools of linguistic text analysis. The authors identified the problem of selecting suitable tools, adapting them to work with texts in Russian, and integrating them with each other. This makes it difficult to use these tools both for research purposes and makes it almost impossi-ble to use them in applied systems. The paper describes the new open-source Java framework TAWT, developed by the authors, that provides convenient ready-made software tools and data structures for the main stages of text analysis in the Russian language that meet the modern requirements for perfor-mance, reliability, project build engine, etc. The paper proposes an approach to the intellectualization of information systems and business pro-cesses using software tools for linguistic text analysis to implement algorithms for automating the pro-cessing of technical documentation, which is the scientific novelty of the work. The application of the developed TAWT framework allowed implementing algorithms for automating the analysis of the text in Russian in terms of the analysis of technical documentation: validating the structure of documents and the list of abbreviations used in the document, searching for similar documents, and obtaining their brief content. All this will simplify the technical documentation management, speed up the process of its preparation, and upgrade the quality of the created documents. The algorithms of automatic text analysis implemented by the TAWT framework have been suc-cessfully applied in application systems for searching friends by interests in social networks, identify-ing fraudulent mes- sages, working with thematic synonyms, as well as for creating software tools for selecting keywords from texts in Russian and referencing them.

12. Developing rules for detecting hidden data in PDF documents [№2 за 2021 год]
Authors: A.V. Sergeev , Khorev P.B.
Visitors: 2515
The paper discusses the definition and implementation of rules for analyzing and detecting hidden in-formation inside PDF documents. Currently, there is a lot of work devoted to detecting hidden elements in images, sound, and video, but little attention is paid to hiding data in electronic documents of vari-ous formats. A widespread format in modern electronic document flow is PDF (Portable Document Format), which is also of interest for studying the possibility of its use in steganography (the science of methods of hiding confidential messages inside container objects). Documents in PDF format have not been sufficiently researched (especially in Russian literature) from the point of view of the possibility for introducing hidden data into them. Systems for the prevention of data leaks (DLP, Data Leak Protection) are designed to prevent leak-age of confidential information from the information system to the external circuit through various in-formation transmission channels. DLP systems are based on the analysis of data streams crossing the perimeter of the protected information system. When confidential information is detected in this stream, an active component of the system is triggered and the transmission of a message (packet, stream, session) is blocked. Modern DLP systems are unable to detect data hidden in steganographic containers and do not al-low adding the necessary functions to their composition. For corporate networks with high network traffic and high value of transmitted and processed data, means of detecting steganographic attach-ments in the information flow are required. The paper discusses the PDF document format, as well as one of the popular open-source intrusion detection and prevention systems – Suricata, which has pow-erful support for scripting in the Lua language for detecting information security threats. A script in Lua has been developed to detect PDF documents with unwanted attachments as scripts, various ob-jects, and the use of inter-container space with the possibility of obfuscating (obfuscating) the name.

13. Algorithm for direction-finding of localized objects of traffic flows on digital satellite images [№2 за 2021 год]
Authors: V.S. Tormozov , A.L. Zolkin , А.U. Mentsiev
Visitors: 2748
The paper proposes a unique algorithm for determining the direction-finding of localized objects in traffic flows based on ultra-high resolution satellite shooting data and geographical information on the location of MAC sections. The program implementation of the developed algorithm is a component module of the program traffic control system. We provide the input of the module with data on the in-terpolated model of the stage, as well as on the location and size of each localized vehicle on the stage. At the output of the module, the direction of its movement is determined for each vehicle: forward or reverse. The algorithm is based on comparing the position of vehicles and the central interpolated line of the MAC section on digital images of the sections. We have developed a unique algorithm for finding a minimum length segment from a point to a broken line on a plane. We used the algorithm as one stage of the stages of the algorithm for determin-ing the direction of movement of the vehicle at the MAC stage. The approach is based on comparing the relative position of the object and the centerline. Due to the unambiguity of correlation of the rela-tive location of centerline with central point parallel to axes of limiting rectangle of localized vehicle, the direction of motion is determined with high accuracy. Due to this, the direction of motion previous-ly detected by the vehicle is determined with high accuracy. The authors undertook a study of developed algorithms on real satellite data. Analysis of the re-search results showed that the developed algorithm for determining the direction-finding works with high accuracy. The experimental evaluation of the work consists of the formation of a calculated metric for a set of previously extracted local regions. Because the algorithm assigns the vehicle to one of the two directions of traffic, we chose the accuracy of the correct determination of the direction of move-ment as a heuristic metric. It is determined that the error in the direction definition is related to the in-accuracy in determining the coordinates of the centerline of the local road section.

14. The analysis model and prediction of technological parameters for the process of electron beam welding [№2 за 2021 год]
Authors: Tynchenko V.S., S.O. Kurashkin , I.A. Golovenok , V.E. Petrenko
Visitors: 3109
The main purpose of the study is to create a mathematical model for the analysis and prediction of technological parameters of the electron-beam welding process using modern regression models, as well as its implementation as a software system in the Python programming language using Scikit-learn, Pandas, NumPy and Matplotlib software packages. Actually, the problem of predicting the parameters of the technological process of electron beam welding is a regression problem. There are many algorithms available for solving the regression prob-lem. Under this work, a regression analysis algorithm is used as polynomial regression with L2 regular-ization – ridge regression, as well as an ensemble of decision tree algorithms – a random forest. Using the developed predictive model will allow the technologist to more consciously approach the selection of both the range of variable parameters for research in new technological modes and to improve the quality in already developed technological modes. The application of the proposed methods will also reduce the time and labor costs for the search, development, and adjustment of the technological pro-cess. The paper describes the ridge regression algorithm, as well as an analysis of the applicability of this algorithm to the solution of the problem posed, and also checks the reliability of the forecasts obtained by their direct use. Also, the process of direct training of the model is considered based on data ob-tained in the experiment framework on the development of the technological process of electron beam welding. An analysis of the applicability of the approach showed that it is permissible to use the proposed method for technological processes with similar statistical dependences. Implementation of the pro-posed approach to predicting the parameters of electron beam welding in production will make it pos-sible to support the adoption of technological decisions when working out the technological process of electron beam welding, as well as when put into production new types of products.

15. The core design of an integrated information system [№2 за 2021 год]
Authors: Chernysh, B.A., A.S. Kartamyshev
Visitors: 3386
The paper deals with a common problem in the design of corporate information systems, when it is necessary to solve simultaneously two conflicting objectives: the effectiveness of application in one specific subject area and flexible adaptation to the requirements of another area. To solve these prob-lems, there is an approach that consists in forming a software framework or platform that implements generalized functionality with the possibility of flexible configuration under evolutionary require-ments. The platform must comply with the requirements of modern realities, such as flexible service-oriented architecture, versioning, auditing and maintaining the history of changes, the ability to store binary data, flexible management of the life-cycle and business processes. The paper outlines the design concepts of such systems, underlying approaches, and technologies, interfaces of data exchange protocols. The author touches upon the application of modern domain-specific languages on top of these protocols. There are examples of existing domestic and foreign sys-tems, their application areas, advantages, and disadvantages. The paper describes the implementation of a comprehensive information platform based on a sys-tem developed by the authors in the production of technically complex product platforms. There are some applicable solutions and techniques, data structures, and algorithms. A comparative measurement of performing the developed system and one of the commercial platforms confirms the effectiveness of the proposed methods. The resulting assessment is the basis for conclusions about the prospects of the development, its applicability in various subject areas. The author has developed a roadmap for further development and optimization of the platform in the most significant areas, considering the current requirements of the industry.

16. Automated decision support system for predicting the dispersion of chemically hazardous substances [№2 за 2021 год]
Authors: L.O. Chernyshev , Matveev, Yu.N.
Visitors: 3115
The paper discusses an approach to the development of a decision support system for predicting the processes of dispersion and release deposition of the emergency chemically hazardous substances, considering the operational monitoring data. The features and factors that reduce the efficiency of supervisory systems during the post-accident clean-up are determined. Most of these systems, implemented on hardware platforms of average com-puting power, do not have the mobility and autonomy sufficient for use in the workplace when toxic chemicals are released and do not provide automatic adjustment of the model parameters based on online monitoring data. The authors summarize the decision support algorithm, considering the data on the assessment of chemical contamination, the generalized scheme of which contains procedures for monitoring the state of the object, and predictive modeling. We show that the primary goal of the algorithm is to calculate the spatial boundaries of the damaging effect of toxic substances that are closest to the actual data of chemical contamination. There is a mathematical formulation of the observational data assimilation problem in the paper. To adjust the parameters of the forecast model, the authors used a functional that characterizes the degree of deviation of the simulation results from the monitoring data. We detail the functional assessment for single and multiple sensor readings in actual time. The DSS structural diagram is detailed, which contains modules for entering a priori data, model calculation, topographic binding of objects, optimization, visualization, and emergency analysis. We consider the DSS operation results on a conditional example. When developing a software layout, Mi-crosoft Visual Studio (C# programming language), a fragment of a digital map, and .NET Framework graphics are used.

17. Fundamentals of modeling a decision support system for the integrated use of surface ship air defense forces and assets [№2 за 2021 год]
Authors: Shustova N.А., Stepanov V.V.
Visitors: 3778
Based on the combat system theory, the fight against the enemy is carried out in certain physical envi-ronments or areas of armed struggle, with the aerospace enemy in the aerospace sphere. In the Navy of the Russian Federation, the fight against the air enemy is organized in anti-aircraft circuits at various levels of control. The paper considers the methodological basis for the development of an intelligent decision support system for the integrated use of air defense forces and means (fighter aircraft, anti-aircraft fire, and electronic warfare) of a tactical group of surface ships in interaction with heterogeneous air defense forces of the fleet and other types of the Armed Forces of the Russian Federation in the theater of mili-tary operations. To develop such a system, the authors propose to organize a permanent complex simulation and modeling stand. Information about the theater of military operations, enemy characteristics, and data on air defense systems should be the source information for the knowledge base of the complex simulation and mod-eling stand. On its basis, the knowledge base management system forms problem-solving models for operators of surface ship air defense calculations. In choosing the most appropriate model of action, an expert-infolog with a knowledge engineer and officials of the calculations of air defense command posts. We formed the information circulating in the complex simulation and modeling stand based on the experience of combat training, combat service, local wars, and armed conflicts extracted from reliable sources. Because of modeling on such a stand using artificial intelligence methods, it becomes possible to create a "Dynamic three-dimensional model of the fight against an aerial enemy in combat space" with a changing scale in actual time. This will make it possible to automate the schedules of the integrated use of surface ships' air de-fense forces and means as part of tactical groups, with the mandatory introduction of integrated combat control systems, and increase the effectiveness of their combat use.

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