Vol 10, No 14 (2022)
- Year: 2022
- Published: 15.11.2022
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/17726
Full Issue
Solution to the problem of creating a random forest ensemble for classification of phone models by price categories
Abstract
The article discusses the creation and use of random forest ensembles of decision trees for predictive analytics by the example of solving the problem of classifying eighty phone models with twenty features in four price categories. A comparative analysis of the obtained solution with a solution based on the decision tree method was also carried out.
Numerical simulation of neural network based on Hodgkin-Huxley model
Abstract
The article deals with numerical simulation of membrane potential fluctuations and gate variables in the Hodgkin-Huxley model. Particular attention is paid to the study of changes in the input current on neurons, which determines the ability of neurons to learn and remember information.
Calculating periodic solutions to non-autonomous duffing equation by small parameter method
Abstract
The article presents the result of automating the small parameter method in the Maple mathematical package for finding a periodic solution to the non-autonomous Duffing equation. Graphs of periodic solutions and phase trajectories of the Duffing equation are constructed for various values of a small parameter.
Development of software for accounting and analysis of dynamics of personal funds movement
Abstract
The article describes the software developed by the authors, designed for accounting and analysis of the dynamics of personal funds movement. It is a web application developed in JavaScript and PHP, expands and extends the functionality of existing analogues.
Development and implementation of methodology for calculating technological equipment for manufacturing of individual units of freight cars during their design
Abstract
The article discusses the process of developing a methodology for calculating technological equipment for manufacturing of individual units of freight cars. The developed methodology is implemented using a software and information system created by the authors, which is based on the use of ANSYS 2022 and Compass-3D software complexes, as well as Microsoft SQL Server DBMS.
Development of software and information system for automated accounting of biathlon athletes training using data of their electronic diaries
Abstract
The article describes a software and information system designed for automated accounting of athletes' training process indicators based on data obtained from special heart rate monitors. The data is transmitted to the athlete's electronic diary, created using the Google Sheets service, and then processed in the software and information system to record and analyze the work performed by athletes during the annual cycle.
Exact solution to one functional differential equation of parabolic type using semigroup theory and some of its applications
Abstract
In this paper, the Cₒ-semigroup operator is constructed, the infinitesimal generator of which is a linear combination of the diffusion-thermal conductivity operator and the spatial inversion operator on a straight line. The general properties of the evolution of functions defining initial conditions under the action of such an operator are discussed. It is shown that these properties differ sharply from the properties of solutions to a one-dimensional parabolic equation on a straight line due to the presence of an essentially discrete element in the generator of the semigroup under consideration.
Development of the main functionality of gaming application for personal computers using unreal engine
Abstract
The article describes the authors' implementation of the basic functionality of a test application developed on the game engine Unreal Engine and designed to run on personal computers. The development was performed using the node-based visual programming language Blueprint.
Two-color graph as means of classification of cartesian products of rough circle transformations
Abstract
The paper describes an algorithm for matching each diffeomorphism, which is a Cartesian product of two rough transformations of a circle, a two-color graph. Necessary and sufficient conditions for topological conjugacy of diffeomorphisms of the class under consideration using a two-color graph are found.