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ВОЛНОВАЯ ЭЛЕКТРОНИКА И ЕЕ ПРИМЕНЕНИЯ В ИНФОРМАЦИОННЫХ И ТЕЛЕКОММУНИКАЦИОННЫХ СИСТЕМАХ
Chapters
Афанасьева А. В., В кн.: ВОЛНОВАЯ ЭЛЕКТРОНИКА И ЕЕ ПРИМЕНЕНИЯ В ИНФОРМАЦИОННЫХ И ТЕЛЕКОММУНИКАЦИОННЫХ СИСТЕМАХ.: Санкт-Петербургский государственный университет аэрокосмического приборостроения, 2018. С. 218–224.
The article proposes a mutual adaptation of the procedure for extracting digital watermark from video sequences and fingerprinting code decoding. Proposed solution includes two interrelated techniques. The first one is a usage of "soft" decision making instead of "hard" decision during watermark extraction. This means that the additional information on extracted bit reliability will be ...
Added: February 26, 2019
Shabanov N., Kuricheva O., Kurbatova J. et al., / Series Working Papers SSRN "Department of Economics Ca’ Foscari University of Venice". 2026.
The carbon balance of an ecosystem is the difference between Gross Primary Productivity (GPP) and Ecosystem Respiration (Reco) as expressed by Net Ecosystem Exchange (NEE). While remote sensing retrievals of GPP have reached maturity, Reco estimation remains underexplored and ultimately cast bias on NEE. Here we present an end-to-end multi-scale analysis of the mechanism of ...
Added: August 21, 2026
Ponomarenko A., / Series Computer Science "arxiv.org". 2025.
This paper addresses the challenge of merging hierarchical navigable small world (HNSW) graphs, a critical operation for distributed systems, incremental indexing, and database compaction. We propose three algorithms for this task: Naive Graph Merge (NGM), Intra Graph Traversal Merge (IGTM), and Cross Graph Traversal Merge (CGTM). These algorithms differ in their approach to vertex selection ...
Added: July 30, 2026
Piontkovski D., / Series arXiv "math". 2026.
A noncommutative projective variety is defined, following Artin and Zhang, by a graded coherent algebra 𝐴. The category of coherent sheaves is then the quotient qgr(𝐴) of the category of finitely presented graded modules by the subcategory of torsion modules. We consider the categorical and polynomial entropies of the Serre twist, that is, of the ...
Added: June 23, 2026
Piontkovski D., / Series arXiv "math". 2025.
If a symmetric multilinear algebra is weakly nil, then it is Engel. This result may be regarded as an infinite-dimensional analogue of the well-known Jacobian theorem, which states that if a polynomial mapping has a polynomial inverse, then its Jacobian matrix is invertible. This refines a theorem of Gerstenhaber and partially answers a question posed ...
Added: June 23, 2026
Shipilov F., Barnyakov A., Ivanov A. et al., / Series Physics "arxiv.org". 2026.
A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, ...
Added: May 19, 2026
Derkacheva A., Sakirkina M., Kraev G. et al., /. 2026.
Comprehensive data on natural hazards and their consequences are crucial for effective for risk assessment, adaptation planning, and emergency response. However, many countries face challenges with fragmented, inconsistent, and inaccessible data, particularly regarding local-scale events. To address this data gap in Russia, we developed an end-to-end processing pipeline that scrapes news from various online sources, ...
Added: April 28, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Gabdullin N., Androsov I., / Series Computer Science "arxiv.org". 2026.
Label prediction in neural networks (NNs) has O(n) complexity proportional to the number of classes. This holds true for classification using fully connected layers and cosine similarity with some set of class prototypes. In this paper we show that if NN latent space (LS) geometry is known and possesses specific properties, label prediction complexity can ...
Added: April 2, 2026
Sorokin K., Beketov M., Онучин А. et al., / arxiv.org. Серия cs.SI "Social and Information Networks ". 2025.
Community detection in complex networks is a fundamental problem, open to new approaches in various scientific settings. We introduce a novel community detection method, based on Ricci flow on graphs. Our technique iteratively updates edge weights (their metric lengths) according to their (combinatorial) Foster version of Ricci curvature computed from effective resistance distance between the ...
Added: January 15, 2026
Petrovanov I., Sergeev A., / Series Computer Science "arxiv.org". 2025. No. 2512.18332.
Transport coding reduces message delay in packet-switched networks by introducing controlled redundancy at the transport layer: original packets are encoded into coded packets, and the message is reconstructed after the first successful deliveries, effectively shifting latency from the maximum packet delay to the -th order statistic. We present a concise, reproducible discrete-event implementation of transport coding in OMNeT++, including ...
Added: December 24, 2025
Hessian-based lightweight neural network for brain vessel segmentation on a minimal training dataset
Меньшиков И. А., Бернадотт А. К., Elvimov N. S., / Series arXie "Statistical mechanics". 2025.
Accurate segmentation of blood vessels in brain magnetic resonance angiography (MRA) is essential for successful surgical procedures, such as aneurysm repair or bypass surgery. Currently, annotation is primarily performed through manual segmentation or classical methods, such as the Frangi filter, which often lack sufficient accuracy. Neural networks have emerged as powerful tools for medical image ...
Added: December 1, 2025
Melman A., Senyukova O., Evsyutin O., В кн.: Инжиниринг и телекоммуникации - EN&T 2024: сборник тезисов XI международной конференции.: МФТИ, 2024. С. 147–149.
Применение цифровых водяных знаков (ЦВЗ) является перспективным средством защиты авторских прав на цифровой контент. В этом исследовании предлагается новый алгоритм невидимого встраивания ЦВЗ в гибридную пространственно-частотную область изображений с применением метаэвристической оптимизации, который отличается устойчивостью к различным атакам обработки изображений, включая JPEG-сжатие. ...
Added: April 21, 2025
Melman A., Evsyutin O., Senyukova O., В кн.: Инжиниринг и телекоммуникации - EN&T - 2023: сборник тезисов X международной конференции.: МФТИ, 2023. С. 295–301.
С распространением цифрового контента в современном ми-ре проблема защиты авторских прав становится всё более актуальной. Эффективным решением данной проблемы является применение техноло-гии цифровых водяных знаков (ЦВЗ), однако достижение высоких показа-телей незаметности и робастности встраивания является сложной задачей. В этом исследовании предложен новый алгоритм множественного встраи-вания ЦВЗ в гибридный домен цифровых изображений, основанный на применении метаэвристической ...
Added: September 10, 2024
Evsyutin O., Melman A., Подболотов Д. И. et al., В кн.: Сборник трудов по материалам IX Международной конференции и молодежной школы "Информационные технологии и нанотехнологии (ИТНТ-2023)".: Самарский национальный исследовательский университет имени академика С.П. Королева, 2023.
Added: September 10, 2024
Козачок А. В., Копылов С. А., Мещеряков Р. В. et al., Информатика и автоматизация (Труды СПИИРАН) 2018 Т. 5 № 60 С. 128–155
This paper presents an approach to a robust watermark extraction from images containing text. Data extraction based on developed approach to robust watermark embedding into text data, characterizing by conversion invariance of text data into an image format. The comparative analysis of existing approaches of steganographic data embedding into text data is carried out, their ...
Added: September 3, 2019
Evsyutin O., Кокурина А.С., Мещеряков Р. В., Компьютерная оптика 2019 Т. 43 № 1 С. 137–154
Transmission, processing and storage of information in the infrastructure of the Internet of Things are related to the necessity for solving a number of problems in information security. The main difficulty lies in the fact that the infrastructure of the Internet of Things is not homogeneous and contains many different devices, including those with limited ...
Added: September 3, 2019
Афанасьева А. В., В кн.: ВОЛНОВАЯ ЭЛЕКТРОНИКА И ЕЕ ПРИМЕНЕНИЯ В ИНФОРМАЦИОННЫХ И ТЕЛЕКОММУНИКАЦИОННЫХ СИСТЕМАХ.: Санкт-Петербургский государственный университет аэрокосмического приборостроения, 2018. С. 218–224.
The article proposes a mutual adaptation of the procedure for extracting digital watermark from video sequences and fingerprinting code decoding. Proposed solution includes two interrelated techniques. The first one is a usage of "soft" decision making instead of "hard" decision during watermark extraction. This means that the additional information on extracted bit reliability will be ...
Added: February 26, 2019
Baibikova T., Качество. Инновации. Образование 2013 № 12 С. 50–56
In this paper are shown methods of information protection and also algorithms of embedding of additional information into digital graphics images. ...
Added: February 11, 2014