Predicting the citation and impact factor of terms for scientific publications using machine learning algorithms

The object of the research when writing the work was the body of text data collected together with the scientific advisor and the algorithms for processing the natural language of analysis. The stream of hypotheses has been tested against computer science scientific publications through a series of simulation experiments described in this dissertation. The subject of the research is algorithms and the results of the algorithms, aimed at predicting promising topics and terms that appear in the course of time in the scientific environment. The result of this work is a set of machine learning models, with the help of which experiments were carried out to identify promising terms and semantic relationships in the text corpus. The resulting models can be used for semantic processing and analysis of other subject areas.

Using augmented reality for navigation in space. Creating Visual Dictionaries

The image of the city is a spatio-temporal continuum in which everything is interconnected, it exists as a single monolith expressing itself in the general atmosphere. The visual image of the city may contain two planes of meanings: culturally ratified and universally valid, expressed by cultural codes, and also significant only to those who are viewing the image. Therefore, the content of the visual image depends on who the subject of perception is, what he pays attention to and in what situation the process of perception of the image occurs.

Some aspects of the pedagogical model of constructive geometric modeling

The application of constructive geometric modeling to pedagogical models of teaching graphic disciplines today is a promising direction for using computer technology in the educational process of educational institutions. The essence of the method of constructive geometric modeling is to represent any operation performed on geometric objects in the form of a transformation, as a result of which some constructive connection is established, and the transformation itself can be considered as a result of the action of an abstract cybernetic device. Constructive geometric modeling is a popular information tool for information processing in various applied areas, however, this tool cannot be appreciated without the presence of appropriate software systems and developed design techniques. Traditionally, constructive geometric modeling is used in the design of mechanical engineering, energy, aircraft and shipbuilding facilities, in architectural and design engineering. The need to study descriptive geometry at the university in recent years has something in common with the issues of mastering graphic packages of computer programs in the framework of the new discipline "Engineering and Computer Graphics". The well-known KOMPAS software product is considered the simplest and most attractive for training. It should be noted the important role of graphic packages in the teaching of geometric disciplines that require a figurative perception of the material by students. Against the background of a reduction in classroom hours, computer graphics packages are practically the only productive teaching methodology, successfully replacing traditional tools - chalk and blackboard.

Analysis of statistics of air crashes based on the study of many factor

The purpose of the study is to collect information about air accidents, collect and analyze statistics according to the criteria: aircraft model, air carrier, cause of the accident, and determining at what stage of the flight the accident occurred.

On the implementation of automatic normative control of the graphics of design documents for one class of parts drawings

The task of normative control of the graphic part of design documents is formulated. A review of approaches to the automation of normative control of technical documentation is given. It is shown that the central place in the procedure for normative control of the graphics of the drawings for a given class of parts is occupied by the analysis of the geometric shape of the part according to its drawing. To perform the analysis procedure, a structural (grammatical) approach is proposed, a grammar and elements, from which the form of parts is composed, are presented. The procedure for preliminary processing of the drawing is described. An example of the analysis of the drawing in a grammatical way is given.

Development of models, algorithms and software for solving the risk as-sessment problems at NPPs in case of beyond-design accidents

This project is aimed at developing models, algorithms and a software package for measures to improve safety and reduce risk in the design of new and operation of existing nuclear power plants. The principal novelty of the project is the development of a methodological apparatus for assessing radiation risk at nuclear power plants during the most dangerous (beyond design basis) accidents involving the emission of thermal neutron sources with a low flux density. Nuclear reactors based on the use of fission energy of heavy nuclei are powerful sources of gamma radiation and neutrons. The project is aimed at computer modeling and the development of new methods, algorithms and a software package for solving the problems of assessing safety and risk at nuclear power plants in the most dangerous (beyond design basis) accidents with the emission of thermal neutron sources with a low flux density. To implement the project, it is necessary to develop a methodological approach to solving the problems of assessing the doses of external and internal radiation and assessing the damage to the population living around nuclear power plants during the most dangerous (beyond design basis) accidents with the emission of thermal neutron sources with a low flux density; make cal-culations for the population, given its age composition. Based on these decisions, measures will be proposed to reduce the risk and improve the safety of nuclear power plants.

Point calculus. Historical background and basic definitions

The paper describes the history of the origin and formation the mathematical apparatus «Point calculus», as one of the scientific directions of the Melitopol school of applied geometry. A brief description of point calculus as a mathematical device that operates within an arithmetic, coordinate affine space, equipped with a topological structure. The basic definitions of point calculus are presented, including point parameters and point equations, space simplex and global coordinate system, independent and current points.

Monitoring, predicting the development and parrying of certain threats for complex distributed systems based on data analysis of multi-sensor systems

With the advent of new sources and technologies for obtaining data on the location and mutual location of objects and systems in general, as well as their integration into real – time control methods and algorithms, conditions have been created for more modern and high-quality use of computer technologies in the management of complex distributed systems (SRS). The components of such SRS are themselves complex distributed systems and have (or can potentially have), among other things, a negative impact on each other, that is, they represent or form a threat to each other. One of the most urgent tasks of our time is to develop various, usually highly computerized, tools and methods for parrying threats based on monitoring and forecasting the development of processes (including physical ones) that form the basis of these threats. This article discusses the problem of parrying one of the types of threats – flood. The issues of using various types of information coming from various sources – sensors for monitoring and forecasting the water level and associated flooding of the corresponding territories are considered. The system of using real-time automatically measured SRS parameters and their further application for digital decision support for parrying threats is a complex highly computerized technical system belonging to the class of the Internet of things. At the same time, it is one of the digital subsystems of the SRS that have a positive impact on other components of the SRS as a whole. All this information comes from various (technically and departmental) heterogeneous sources, so for its rapid and high-quality storage and use for monitoring, forecasting and parrying threats to the SRS, it needs specialized methods of analysis, structuring and distributed storage.

Investigation of ways to improve positioning accuracy using additional ground means

Currently, the problem of improving satellite navigation systems has gained sufficient popularity. This is due to the fact that a lot of both civilian and military objects are somehow connected with satellites (navigators for civilians, tracking systems in the military sphere, etc.). Unfortunately, when implementing satellite navigation systems in various industries, one has to face a number of problems. Namely, with very low positioning accuracy of the required objects. This is due to the dynamism and mobility of satellites relative to the Earth. That is why stationary ground objects are introduced to improve positioning accuracy. In connection with the above problems, the topic of the work is quite relevant today.

Assessing the risk of a nuclear power plant in a terrorist attack. Application of physical protection systems. Ray-tracing technology optimization techniques

Terrorism today is one of the main threats to human civilization. In recent years, international terror has proved its extreme cruelty, its readiness to stop at nothing in order to achieve its goals. As a result of committing terrorist acts, innocent people, children, women and old people suffer. For a terrorist, human life has no value. With the modern variety of potentially dangerous objects and their functional orientation, it is impossible to ensure safety with standard solutions, using uniform strategies, tactical schemes and techniques, and the same type of equipment. If we simply follow the path of ensuring the maximum level of safety, it may turn out that at most facilities the cost of the applied technological means will be many times greater than the cost of the technological equipment of the facility and even the facility itself. Hence, it follows that in order to create effective physical protection systems or to effectively modernize existing physical protection systems, it is necessary to analyze these systems, to identify the weakest and most protected places that need strengthening. At the same time, an important difference must be taken into account between physical protection systems and other safety systems used to protect against natural disasters (such as earthquakes, floods, tornadoes, hurricanes, etc.) and against abnormal operating conditions (such as fire, malfunctions in electrical equipment, etc.). Unlike human violators, security breaches are subject to strict laws and do not happen without reason. For example, the fire of a fire can only burn while there is fuel and oxygen. If one of these elements is removed, the fire will go out. Also, a fire cannot decide where and when it will occur, and how it will progress. Conversely, the human adversary (intruder) has the ability to decide whether to attack, when and how to attack, can adjust to the measures of the physical protection system to counter it, and possibly even outwit and defeat them. All this introduces a significant element of uncertainty into the process of analyzing and evaluating the effectiveness of the physical protection system. Taking into account the above, the task of developing a methodological approach to risk assessment when committing a terrorist attack using physical protection systems, taking into account the optimization of calculations of cost-intensive algorithms in real time, becomes more and more urgent. In this article, the authors attempt to create this approach.