Index:rinc

The dual quaternion algebra and its implementation in Asymptote language

The algebras of dual quaternions and screws are often opposed to geometric algebra. The purpose of this paper is to describe the algebra of dual quaternions and the algebra of …

migran-nelsonovich-gevorkyan

Solving the eikonal equation by the FSM method in Julia language

There are two main approaches to the numerical solution of the eikonal equation: reducing it to a system of ODES (method of characteristics) and constructing specialized methods …

christina-aleksandrovna-stepa

Numerical solution of first-order exact differential equations by the integrating factor method

A numerical algorithm for solving exact differential equations is proposed, based both on the efficient calculation of integrating factors and on a “new” numerical method for …

leonid-antonovich-sevastianov

IMRAD structure

We describe introduced in the journal the rubric system. We describe the general structure of an IMRAD research publication. The IMRAD structure for a research article is described …

dmitry-sergeevich-kulyabov

Application of the Chebyshev collocation method to solve boundary value problems of heat conduction

For one-dimensional inhomogeneous (with respect to the spatial variable) linear parabolic equations, a combined approach is used, dividing the original problem into two …

konstantin-petrovich-lovetskiy

Julia language features for processing statistical data

The Julia programming language is a specialized language for scientific computing. It is relatively new, so most of the libraries for it are in the active development stage. In …

migran-nelsonovich-gevorkyan

Chebyshev collocation method for solving second order ODEs using integration matrices

The spectral collocation method for solving two-point boundary value problems for second order differential equations is implemented, based on representing the solution as an …

konstantin-petrovich-lovetskiy

Implementation of hyperbolic complex numbers in Julia language

Hyperbolic complex numbers are used in the description of hyperbolic spaces. One of the well-known examples of such spaces is the Minkowski space, which plays a leading role in the …

anna-vladislavovna-korolkova

Multistage pseudo-spectral method (method of collocations) for the approximate solution of an ordinary differential equation of the first order

The classical pseudospectral collocation method based on the expansion of the solution in a basis of Chebyshev polynomials is considered. A new approach to constructing systems of …

konstantin-petrovich-lovetskiy

Computer Algebra in JULIA

Recently, the place of the main programming language for scientific and engineering computations has been little by little taken by Julia. Some users want to work completely within …

dmitry-sergeevich-kulyabov

Using a Template Engine as a Computer Algebra Tool

In research problems that involve the use of numerical methods for solving systems of ordinary differential equations (ODEs), it is often required to select the most efficient …

migran-nelsonovich-gevorkyan

Hybrid modelling of the RED algorithm in the Julia language

This work is devoted to studying the possibilities of hybrid modeling of communication network algorithms in the Julia programming language. A simulation of the system, which …

anna-maria-yurievna-apreutesey

Comparative analysis of machine learning methods by the example of the problem of determining muon decay

The history of using machine learning algorithms to analyze statistical models is quite long. The development of computer technology has given these algorithms a new breath. …

migran-nelsonovich-gevorkyan

Application of a numerical-analytical approach in the process of modeling differential equations in the Julia language

It is known that modeling consists of a few stages. Analytic calculations are made first and afterwards, they are converted into numerical ones. It is a fairly complicated task, …

arseny-vitalievich-fedorov

Paralinguistic model for emotions recognition with deep neural networks

In this paper the computer paralinguistic model for emotions recognition based on deep neural networks is proposed. The main stages of its construction were studied and relevant …

eugene-yurievich-shchetinin

On improving the accuracy of the classification on imbalanced classes with machine learning

Imbalance of the classes, characterized by a disproportional ratio of observations in each class, is one of the significant problems in machine learning. Class imbalances can be …

eugene-yurievich-shchetinin

Hyperbolic numbers as Einstein numbers

In the special theory of relativity (SR) it is usual to highlight so-called paradoxes. One of these paradoxes is the formal appearance of speed values grater then the light speed. …

dmitry-sergeevich-kulyabov

Deep Neural Networks for Emotion Recognition

The paper investigates the problem of recognizing human emotions by voice using deep learning methods. Deep convolutional neural networks and recurrent neural networks with …

eugene-yurievich-shchetinin

An Effective Stable Numerical Method for Integrating Highly Oscillating Functions with a Linear Phase

A practical and simple stable method for calculating Fourier integrals is proposed, effective both at low and at high frequencies. An approach based on the fruitful idea of Levin, …

leonid-antonovich-sevastianov