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К вопросу о поиске гигантских радиогалактик в обзоре PC 102
Астрономический журнал (Российская федерация). 2014. Т. 91. № 6. С. 434–448.
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
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
Minaev P. Y., Alexei Pozanenko, Monthly Notices of the Royal Astronomical Society 2020 Vol. 492 No. 2 P. 1919–1936
We present the most extensive sample of 45 type I (short) and 275 type II (long) gamma-ray bursts (GRBs) with known redshift to investigate the correlation between the rest-frame peak energy, Ep,i and the total isotropic equivalent energy, Eiso of the prompt emission (Amati relation). The Ep,i–Eiso correlation for type I bursts is found to ...
Added: October 29, 2020
Pakhomova L. M., Пахомов Ю. Г., Ars Administrandi 2018 Т. 10 № 1 С. 80–95
The paper traces the legal regulation of the system of cataloging goods, works, services; characterized by the birth of this institution through a library’s workflow system, regulatory acts that contribute to the formation of this category in the period from the 70s of the XX century to the present; describes the research of this topic ...
Added: June 3, 2018
Skvortsov N. A., Avvakumova E. A., Bryukhov D. O. et al., Astrophysical Bulletin 2016 Vol. 71 No. 1 P. 114–124
New technical capabilities have brought about the sweeping growth of the amount of data acquired by the astronomers from observations with different instruments in various parts of the electromagnetic spectrum. We consider conceptual approach to be a promising tool to efficiently deal with these data. It uses problem domain knowledge to formulate the tasks and ...
Added: January 27, 2018
Burkov A., Кулычева А. А., Госзаказ: управление, размещение, обеспечение 2016 № 46 С. 10–15
Статья посвящена проблемам текущего состояния информационного обеспечения государственных и муниципальных закупок в контексте проекта каталога закупаемых товаров, работ, услуг. ...
Added: June 28, 2017
Samodurov V., Kitaeva M., Logvinenko S. et al., Odessa Astronomical Publications 2014 Vol. 27 No. 2 P. 75–77
From 2012 on radio telescope BSA FIAN multi beams diagram was started. It capable at July 2014 daily observing by 96 beams in declination -8 .. 42 degrees in the frequency band 109-111.5 MHz. The number of frequency bands are from 6 to 32, the time constant are from 0.1 to 0.0125 sec. In receiving ...
Added: November 25, 2014
Абрамов А. Г., Bulakina M., Булгаков М. В. et al., Информатизация образования и науки 2009 № 3 С. 51–64
A review of the most useful informational components and system-wide services of Federal portal "Russian education", Information system of access to educational resources ("Unified window"), and portal "Information and communication technologies in education" is given. Functional structure and informational content is considered, experience of creation and development of educational portals is analyzed. ...
Added: November 29, 2013
Starykh V., Башмаков А. И., Scientific and Technical Information Processing 2013 № 4 С. 27–31
For management of information resources (IR) the Russian educational system the uniform specification of metadata used for the description and classification of the information - and in educational portals, and in registration system, and in storehouses of data should be developed and accepted. In the present work specified concept of IR as object of cataloguing ...
Added: October 16, 2013
М.: РГГУ, 2012.
Рассматриваются наиболее существенные
проблемы актуализации вещественных и изобразительных историче
ских источников в социальных, в том числе исследовательских, практи
ках, намечаются перспективы развития археографии музейного предме
та как актуального направления, без разработки которого невозможно
историческое познание на современном уровне. Обосновывается необ
ходимость расширения эмпирического пространства исторического по
знания, грамотного введения в научный оборот наряду с письменными
источниками, исторических источников иных типов — вещественных,
изобразительных, хранящихся, ...
Added: April 9, 2013
Kitaeva M. A., Samodurov V., Dumsky D. et al., В кн.: Труды института прикладной астрономии РАНВып. 24.: СПб.: Санкт-Петербургская издательская фирма «Наука» РАН, 2012. С. 315–319.
С 2011 г. база данных астрономических каталогов активно оснащается ПРАО АКЦ ФИАН http://as tro.prao.ru/db/ средствами визуализации данных и сравнения каталогов между собой. Данные средства будут служить основой для статистической обработки и перекрестного анализа различных астрономических каталогов. Для поставленных задач нами разрабатываются: средства графического отображения данных нескольких каталогов в пределах выбираемой площадки на небе; отображение данных ...
Added: March 13, 2013
Samodurov V., Kitaeva M. A., Isaev E. et al., В кн.: Труды института прикладной астрономии РАНВып. 24.: СПб.: Санкт-Петербургская издательская фирма «Наука» РАН, 2012. С. 320–324.
В рамках Пущинской обсерватории АКЦ ФИАН уже несколько лет развивается центр хранения и обработки радиоастрономических данных (Radio Astronomy Data Center, RADS). Он состоит из базы данных на основе важнейших для радиоастрономов астрономических каталогов и базы наблюдательных данных Пущинской радиоастрономической обсерватории. База данных астрономических каталогов работает в режиме on-line на сайте "Рабочая среда радиоастронома" (http://astro.prao.ru/db/). С ...
Added: March 13, 2013
Кусова А. Т., Вестник Северо-Осетинского государственного университета имени Коста Левановича Хетагурова 2010 № 3 С. 107–112
Таксономии - это наборы категорий, которые применяются для организации данных. В российской практике они более известны как каталоги, классификаторы, номенклаторы. Таксономия задает иерархическую структуру категорий. Корпоративная таксономия представляет собой попытку классифицировать и уложить в одну структуру практически всю информацию в компании. Построение таксономии, охватывающей всё предприятие, обещает многочисленные выгоды. О том, как структурировать с их ...
Added: October 31, 2012