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Variational Autoencoders for Precoding Matrices with High Spectral Efficiency
Ch. 22. P. 315–326.
Neural networks are used for channel decoding, channel detection, channel evaluation, and resource management in multi-input and multi-output (MIMO) wireless communication systems. In this paper, we consider the problem of finding precoding matrices with high spectral efficiency (SE) using variational autoencoder (VAE). We propose a computationally efficient algorithm for sampling precoding matrices with minimal loss of quality compared to the optimal precoding. In addition to VAE, we use the conditional variational autoencoder (CVAE) to build a unified generative model. Both of these methods are able to reconstruct the distribution of precoding matrices of high SE by sampling latent variables. This distribution obtained using VAE and CVAE methods is described in the literature for the first time.
Makhmudov T. N., Захарова В. О., Салуев Е. А. et al., Динамика сложных систем - XXI век 2023 Т. 17 № 1 С. 13–29
Постановка проблемы. Во все времена информация являлась востребованным ресурсом. Злоумышленники, захватывая данные, в некоторых случаях могли существенно влиять не только на отдельные объекты и процессы, но и на развитие социума. Современный мир нельзя представить без беспроводных способов связи. Множество электронных устройств передают данные между собой с помощью различных протоколов, и, к сожалению, эти протоколы не ...
Added: December 27, 2025
Arinin O. V., Bakhmach D. M., Katsnelson A. et al., , in: 2025 Systems of Signals Generating and Processing in the Field of on Board Communications.: IEEE, 2025. P. 1–5.
This research discusses the method of dataset collection automatization for microwave filter synthesis by integrating machine learning techniques, thus reducing development time. Utilizing the 3D electromagnetic analysis software package, the study involves simulation and collecting geometric parameters and amplitude-frequency characteristics from three variants of passband highly selective microstrip tworesonator combined filters with stepped impedance resonators. ...
Added: December 6, 2025
Medvedev M., Journal of Chemical Information and Modeling 2025 Vol. 65 No. 12
Added: November 12, 2025
Molostvov V., Advances in Systems Science and Applications 2025 Vol. 25 No. 1 P. 1–11
A two-criteria vector optimization problem – finding Pareto-optimal solutions in linear systems with interval uncertainty of coefficients – is considered. The problem of resource allocation to multiple activities is investigated. The uncertainty-adjusted income is a bilinear function, linear by strategy under fixed uncertainty and by uncertain parameters under fixed strategy. Guaranteed income is a linear ...
Added: August 26, 2025
Morozov V., Башара В. О., Емельяненко М. В., В кн.: Параллельные вычислительные технологии – XIX всероссийская научная конференция с международным участием, ПаВТ’2025, г. Москва, 8–10 апреля 2025 г. Короткие статьи и описания плакатов.: Челябинск: Издательский центр ЮУрГУ, 2025. С. 193–210.
Error correction in the secret key is a mandatory step in quantum key distribution (QKD) protocols. Usually, modern error-correcting codes are used for its implementation. Imperfections of the hardware used in QKD systems lead to bit flipping errors in the channel. Moreover, such systems are characterized by an asymmetric distribution of such errors. Taking into ...
Added: June 3, 2025
Cherednichenko O., Poptsova M., Computers in Biology and Medicine 2025 Vol. 184 Article 109440
Non-B DNA structures, or flipons, are important functional elements that regulate a large spectrum of cellular programs. Experimental technologies for flipon detection are limited to the subsets that are active at the time of an experiment and cannot capture whole-genome functional set. Thus, the task of generating reliable whole-genome annotations of non-B DNA structures is ...
Added: March 11, 2025
Panos Pardalos, Valery Kalyagin, Mario R. Guarracino, Computational Management Science 2024 Vol. 21 No. 1 Article 35
Big data has become an integral part of modern networks. With the increasing amount of data generated by devices, machines, and applications, networks are constantly being challenged to handle and process this data in a timely and efficient manner. The size, complexity, and variety of data in networks are increasing rapidly, which requires new approaches ...
Added: February 22, 2025
Molostvov V., Advances in Systems Science and Applications 2024 Vol. 24 No. 2 P. 103–115
This paper presents the development of computing tools for finding optimal structures of multi-currency deposits in terms of guaranteed risk under uncertain exchange rates. The approach utilizes Savage's minimax regret concept to calculate risk and guaranteed risk functions explicitly, assuming only the limits of possible changes in uncertain parameters are known. The Excel environment implements ...
Added: August 9, 2024
Sizov M., Shushkin M., Информационное общество 2024 № 6 С. 2–15
This study investigates the influence of digital technologies on conventional business processes and the competitive advantages of Kazakhstani companies in the FMCG sector. Additionally, it explores their contribution to innovativeness and productivity. A systematic literature review was conducted to achieve the research objective. The study results indicate that digital business processes possess unique characteristics, such ...
Added: May 14, 2024
D'yakonov A., Васильев Р. Л., / Series arXiv "math". 2023.
Neural networks solving real-world problems are often required not only to make accurate predictions but also to provide a confidence level in the forecast. The calibration of a model indicates how close the estimated confidence is to the true probability. This paper presents a survey of confidence calibration problems in the context of neural networks ...
Added: March 18, 2024
Dranov E., Fedyanin D., , in: 2023 5th International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA)Vol. 5.: IEEE, 2023. P. 464–469.
The authors focus on a problem on equilibrium control in Cournout competition. Our approach uses Cognitive Approach to Reasoning. From one point of view agents plays a game with a fixed market size, and at the same time they have their own beliefs about what market size really is. It influence the equilibrium and the ...
Added: February 24, 2024
Буртаков И. А., Горбунова А. О., Kureev A. et al., Информационные процессы 2023 Т. 23 № 4 С. 612–623
Reconfigurable Intelligent Surface (RIS) is a promising technology that can increase the capacity and coverage of wireless networks. The effectiveness of RIS is determined by its configuration, which can be made based on the information about location of the transceiver devices. In practice, there are two main types of RIS configurations: focusing the signal reflected ...
Added: January 17, 2024
Springer, 2023.
This book constitutes the refereed proceedings of the 14th International Conference on Advances in Optimization and Applications, OPTIMA 2023, held in Petrovac, Montenegro, during September 18–22, 2023.
The 21 full papers included in this book were carefully reviewed and selected from 68 submissions. They were organized in topical sections as follows: mathematical programming; global optimization; continuous optimization; ...
Added: December 9, 2023
Cham: Springer, 2023.
This book presents the state of the art in the emerging field of data science which includes models for layered security, protection of large gathering sites, cancer diagnostics, self-driving cars and other applications with catastrophic consequences of wrong decisions. The manipulability of aggregation procedures for the case of large numbers of voters is analyzed from ...
Added: November 3, 2023
Altukhov D., Kleeva D., Ossadtchi A., Neuroimage 2023 Vol. 280 Article 120333
Functional connectivity is crucial for cognitive processes in the healthy brain and serves as a marker for a range of neuropathological conditions. Non-invasive exploration of functional coupling using temporally resolved techniques such as MEG allows for a unique opportunity of exploring this fundamental brain mechanism.
The indirect nature of MEG measurements complicates the estimation of functional coupling due to the volume ...
Added: September 24, 2023
Смирнов И. А., КРАВЧЕНКО В. О., Разумов П. В. et al., ГНИИ "НацРазвитие", 2019.
this article will describe the various methods of exchanging data between
processes, with the subsequent conclusion about the speed of each. Tests were conducted on
different processors and different versions of operating systems. This study was conducted to find
out the fastest way to transfer data between processes on a Jetson TX2 supercomputer compared to
other platforms. ...
Added: May 11, 2023
Springer, 2022.
This book constitutes selected and revised papers from the 22nd International Conference on Mathematical Modeling and Supercomputer Technologies, MMST 2022, held in Nizhny Novgorod, Russia, in November 2022.
The 20 full papers and 5 short papers presented in the volume were thoroughly reviewed and selected from the 48 submissions. They are organized in topical secions on computational methods ...
Added: December 26, 2022
Lazarev A. A., Lemtyuzhnikova D. V., Tyunyatkin A. A. et al., IFAC-PapersOnLine 2022 Vol. 55 No. 10 P. 2881–2886
This research extends the interpolation approach to approximating the objective function value for the minimization maximum lateness problem. The interpolation approach is defined using a special objective function Lmax(α), which is proven to be continuous and depends only on α transform coefficient. Such a function is proven to be monotonically increasing, and this property is ...
Added: December 5, 2022