Estimation of vectors similarity by their randomized binary projections

DA Rachkovskij - Cybernetics and Systems Analysis, 2015 - Springer
We analyze the estimation of the angle, scalar product, and the Euclidean distance of real-
valued vectors using binary vectors with controlled sparsity. Transformation is carried out by …

Analytical study of error components for solving discrete ill-posed problems using random projections

EG Revunova - Cybernetics and Systems Analysis, 2015 - Springer
This article analytically studies the dependence of components of the error of reconstructing
the true signal on the number of rows of a random projection matrix. It is shown that, with …

[PDF][PDF] Randomization approach to the reconstruction of signals resulted from indirect measurements

EG Revunova - Proc. ICIM, 2013 - astrid.irtc.org.ua
This paper proposes an approach to the stable solution of the output transformation
problem, based on random projections and QR-decomposition. The behavior of the error …

A linear system output transformation for sparse approximation

OV Tyshchuk, OO Desiateryk, OE Volkov… - … and Systems Analysis, 2022 - Springer
We propose an approach that provides a stable transformation of the output of a linear
system into the output of a system with the desired basis. The matrix of basis functions of the …

Method for Converting the Output of Measuring System into the Output of System with Given Basis

E Revunova, V Burtniak, Y Zabulonov… - Systems, Decision and …, 2023 - Springer
The chapter reviews the methods of data processing aimed at improving the accuracy of
measurements in radiation monitoring systems. The accuracy of radionuclide activity …

Устойчивое преобразование выхода линейной системы в выход системы с заданным базисом

ЕГ Ревунова - Управляющие системы и машины, 2013 - dspace.nbuv.gov.ua
Рассмотрен подход, обеспечивающий устойчивое преобразование выхода линейной
системы в выход системы с заданным базисом для случая, когда матрица базисных …

Дослідження точності розв'язання дискретних некоректних задач методом випадкових проекцій

ОГ Ревунова - Управляющие системы и машины, 2018 - dspace.nbuv.gov.ua
Для розв'язання дискретних некоректних задач на основі аналітичного усереднення
випадкового проектування розроблено метод визначення оптимальної розмірності …

Roku Inc., Kyiv, Ukraine

OV Tyshchuk, OO Desiateryk, OE Volkov… - kibernetika.org
We propose an approach that provides a stable transformation of the output of a linear
system into the output of a system with a desired basis. The matrix of basis functions of a …

[HTML][HTML] CCE Journal

OV TYSHCHUK - kvt-journal.org.ua
Issue 4 (210), article 2 – CCE Journal Skip to content CCE Journal Cybernetics and Computer
Engineering Journal website, ISSN (print): 2663-2578, ISSN (online): 2663-2586, DOI …

[PDF][PDF] OG RevunOva, Doctor of Engineering Sciences, Senior Researcher, International Research and Training Center for Information Technologies and Systems of …

O Tyshcuk, ОО DesiaTeRyk - jnas.nbuv.gov.ua
We considered the problem of object signals recovery in the systems where an input-output
transformation is described by models of convolution type. To find a solution for such …