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News
July 20, 2026
Scientists Create Open Dataset for Studying Concentration
A team of Russian researchers, including scientists from HSE University–St Petersburg, has developed the first open multimodal dataset containing recordings of brain activity, heart function, and video observations to help researchers understand what happens in the human brain during deep concentration. In the future, the dataset could accelerate the development of neural interfaces, rehabilitation technologies, and AI systems. The article has been published in Scientific Data.
July 20, 2026
‘Science Is Universal-It Knows No Borders
Fuad Aleskerov, Tenured Professor and Director of the International Centre of Decision Choice and Analysis at HSE University, together with his colleagues, has developed methods of network analysis in bibliometrics that have made it possible to identify patterns in the appearance and citation of publications in academic journals, as well as their influence on each other. When one or a number of studies are frequently cited by a wide range of journals, this is an indicator that the research is of high quality. By contrast, extensive cross-citation within a limited group of journals increases the likelihood of identifying a network of predatory publications.
July 20, 2026
Scientists Propose Method for More Efficient Resource Use in Machine Learning
An international group of researchers, including mathematicians from the AI and Digital Science Institute at the HSE Faculty of Computer Science, has provided a theoretical justification for a simple and computationally efficient method of estimating uncertainty in Stochastic Gradient Descent (SGD). The paper has been published on the scientific preprint server arXiv.org and presented at AISTATS 2026.

 

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Влияние наночастиц золота на сперматогенез мышей

Известия РАН. Серия биологическая. 2012. № 3. С. 279–287.
Захидов С. Т., Павлюченкова С. М., Маршак Т. Л., Рудой В. М., Дементьева О. В., Зеленина И. А., Скуридин С. Г., Makarov A. A., Хохлов А. Н., Евдокимов Ю. М.
Priority areas: IT and mathematics
Language: Russian
Keywords: стволовые клеткизолото
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Growth in noncommutative algebras and entropy in derived categories
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
Multilinear nilalgebras and the Jacobian theorem
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
ML-based Fast Simulation of FARICH Responses
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
Natural hazard database from Internet publications: text mining with a large language model
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
Algorithmic overlaps as thermodynamic variables: from local to cluster Monte Carlo dynamics in critical phenomena
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
Using predefined vector systems to speed up neural network multimillion class classification
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
Iterative Ricci-Foster Curvature Flow with GMM-Based Edge Pruning: A Novel Approach to Community Detection
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
Implementing Transport Coding in OMNeT++ for Message Delay Reduction
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
Эффективный алгоритм торговли на фондовом рынке: ретроспективный анализ, основанный на данных по S&P-500.
Rubchinskiy A., Chubarova D., / Series WP7 "Математические методы анализа решений в экономике, бизнесе и политике". 2025. No. WP7/2025/01.
The article examines one of the most famous examples of socio-economic systems, characterized by significant uncertainty – the S&P-500 stock market, where shares of 500 largest US companies are traded. No assumptions are made about the probabilistic characteristics of the stock market. A flexible algorithm for daily trading has been developed, based on both known fixed data ...
Added: November 9, 2025
Оценка эффективности стратегии «всепогодного» портфеля для пассивного инвестирования
Soldatova A., Сберегательное дело за рубежом 2022 Т. 3 С. 47–57
Against the background of growing interest of private investors in stock market instruments, the concept of an "all-weather" or "eternal" portfolio is becoming popular. This article examines the origins of modern portfolio theory, analyzes the features of the formation of an "all-weather" portfolio depending on the stages of the economic cycle, and provides indicators for ...
Added: July 8, 2025
Архитектура мировой финансовой системы: трансформация vs стабильность?
Bondarenko K., Санников О. А., Пространственная экономика 2025 Т. 21 № 1 С. 136–162
The paper discusses current development of the world financial system through the processes of transforming its architecture or stabilizing the existing model. The study is based on the data on international trade and international reserves of different countries of the world (both developing and developed), as well as on the structure of financial claims (assets) ...
Added: March 14, 2025
Effect of Au addition on the corrosion behavior of Al0.25CoCrFeNiCu0.25 high-entropy alloy in 0.5 M H2SO4 solution
Samoilova O., Pratskova S., Shaburova N. et al., Materials Letters 2023 Vol. 350 Article 134932
The microstructure, phase composition, and corrosion behavior of Al0.25CoCrFeNiCu0.25 and Al0.25CoCrFeNiCu0.25Au0.1 high-entropy alloys (HEAs) in a 0.5 M H2SO4 solution have been studied. The Al0.25CoCrFeNiCu0.25Au0.1 HEA demonstrates a high corrosion resistance with a corrosion current density of Icorr = (8.46 ± 0.05) μA/cm2. Introducing a small amount of gold is a promising method for obtaining corrosion-resistant HEAs. ...
Added: February 18, 2025
The impact of COVID-19 on gold seasonality
Bentes S. R., Gubareva M., Teplova T., Applied Economics 2022 Vol. 54 No. 40 P. 4700–4710
This study investigates the impact of COVID-19 on the seasonality of gold returns by means of an asymmetric EGARCH model (Exponential GARCH). We find that the so-called ‘autumn effect’, or the traditional seasonal increase in gold returns in fall, vanishes and even shows a reverse pattern during the COVID-19 pandemic. We ascribe this phenomenon to ...
Added: June 16, 2022
Запрещенная наука: возможности исследования стволовых клеток в России
Polyakova V., В кн.: Новое время, новое поле: меняющийся мир качественных исследований и новые технологии.: СПб.: , 2021. С. 315–368.
В главе исследуется применение в России стволовых клеток и процесс формирования этой области в качестве не законченной (стигматизированной) науки. Автор реконструирует механизмы, которые привели к стигматизации технологий и экспертных сообществ, и дает детальное описание техник и инструментов проведенного эмпирического исследования, таких как интервью с учеными и клиницистами и дискурс-анализ материалов СМИ. ...
Added: November 19, 2021
Анализ российского рынка золота и тенденций его развития
Kosov M., Экономический анализ: теория и практика 2019 Т. 18 № 3 (486) С. 413–426
Subject Russia belongs to the most important players influencing the development of the world gold market. Moreover, it is one of the leaders in the world's untouched gold reserves. At the same time, gold mining enterprises face conditions that hinder the industry growth. Objectives The study aims to analyze the Russian gold market and define its development trends. Methods I ...
Added: September 2, 2021
Анализ мирового рынка золота и тенденций его разития
Kosov M., Экономический анализ: теория и практика 2019 Т. 18 № 5 (488) С. 910–924
Subject. In today's volatile global economy and political situation, gold is a particularly important asset for any financial and economic system. The global gold market has a number of obstacles to its development. Despite the transparency of information provided by exchanges, the largest producers, and government agencies, the market is fragmented, and the data on ...
Added: August 22, 2021
Купчая на раба из собрания отдела рукописей РНБ. Предисловие, перевод с арабского, примечания
Gusarova E., Письменные памятники Востока 2019 Т. 16 № 38 С. 16–26
The slave trade was widespread in the Horn of Africa and the surrounding territories, at least until the end of the 19th century. The sale of slaves from this region has been witnessed already in deep antiquity, beginning with the New Kingdom in Egypt in the middle of the 2nd millennium BC. For centuries, it ...
Added: January 29, 2020
Эконометрический анализ золотого запаса резервов российской федерации и швейцарской конфедерации
Bronnikov E., Хроноэкономика 2018 № 1 (9) С. 30–37
The paper deals with the results analysis of econometric modelling of relative and absolute values of gold reserves in national regulators on the basis of data from 2000 to 2016. The models obtained as a result of the work allow determine both ton and percentage quantity of reserve gold. However, the pivotal role of the national ...
Added: September 25, 2018
Особенности управления резервными активами в странах Азии
Malyshev P., Мировая экономика и международные отношения 2011 № 3 С. 28–36
Added: December 2, 2017
Золото в золотовалютных резервах России: сколько его нужно?
Волков Р.Г., Экономический анализ: теория и практика 2013 № 28(331) С. 15–21
Один из компонентов золотовалютных резервов государства – золото. Его роль в этом качестве значительно возросла в последние годы, что подтверждается тенденцией роста его покупок центральными банками стран мира. Банк России также наращивает свои запасы золота. В данной работе сделана попытка оценить обоснованность такой политики и возможные объемы наращивания запасов золота России в будущем. ...
Added: November 2, 2015
Analysis of Twitter Users’ Mood for Prediction of Gold and Silver Prices in the Stock Market
Porshnev Alexander, Redkin Ilya, , in: Analysis of Images, Social Networks and TextsVol. 436: 3rd International Conference on Analysis of Images, Social networks, and Texts.: NY: Springer, 2014. Ch. 19 P. 190–197.
The question about possibilities to use Twitter users’ moods to increase accuracy of stock price movement prediction draws attention of many researchers. In this paper we examine the possibility of analyzing Twitter users’ mood to improve accuracy of predictions for Gold and Silver stock market prices. We used a lexicon-based approach to categorize the mood ...
Added: November 21, 2014
Денежное обращение в России в XIX — начале XX века: финансово-правовые аспекты
Jankiewicz S., Деньги и кредит 2014 № 6 С. 65–71
The article is the historical and legal research of the evolution of monetary circulation in the Russian Empire from the beginning of the 19th century until 1917. The author analyzes the problems of money circulation through significant historical events: the Great Patriotic War of 1812, the Russian-Turkish War, the Russian-Japanese War, the First World War. ...
Added: July 1, 2014
Монетная регалия в России в XVII — XVIII веках: злоупотребления государства правом
Jankiewicz S., История государства и права 2014 № 4 С. 6–11
The article is the historical and legal research of the evolution of monetary circulation in the Moscow state and the Russian Empire in the XVII – XVIII centuries. The main directions of the monetary policy and the notion «monetary regalia» are analyzed. The author makes conclusions about the existence of the negative trend throughout the ...
Added: May 6, 2014
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