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Двухфазная схема решения в рамках использования смесей алгоритмов в задаче «структура – свойство»
Pattern Recognition and Image Analysis. 2016. Т. 26. № 1.
Прохоров Е. И., Свитанько И. В., Захаренко А. Л., Суханова М. В., Беккер А. В., Перевозников А. В., Кумсков М.И.
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
Городничев М. Г., Саксонов Е. А., Кулагин В. П. et al., Вестник Рязанского государственного радиотехнического университета, Российская Федерация 2025 № 94 С. 59–67
The article is devoted to the development and experimental evaluation of a decentralized architecture for an intelligent transport system (ITS) based on the Raft consensus protocol and the network distance metric (RTT) server clustering method. It is shown that existing solutions either require manual configuration and centralized coordination, or are not optimized for latency with ...
Added: March 25, 2026
Morychev G., Sizykh D., Sizykh N., IEEE Access 2025 Vol. 13 P. 213194–213210
One of the main tools for analyzing large volumes of financial data is the use of clustering methods and models, which allow the identification of various patterns. This study examines the problem of clustering time series that reflect the behavior of prices, yields, modes, trends, and a number of related stock indicators. The relevance and ...
Added: February 3, 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
Nastina E., Sokolov B., / Series OSF "SocArXiv". 2025.
We argue that a classification-based approach to measuring cultural differences across countries or subnational regions is a promising complement, and sometimes an alternative, to the widely used dimensional method in cross-cultural research. The latter summarises cultural variation using continuous dimensions, for example, Hofstede’s famous individualism-collectivism dimension. However, this approach relies on strong parametric assumptions, which are ...
Added: December 23, 2025
Rubchinskiy A., Chubarova D., Technology and Investment 2025 Vol. 16 No. 4 P. 211–240
The article considers 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. The flexible algorithm for daily trading has been developed. It is based on known fixed data about cost of shares in previous days as well as on ...
Added: December 19, 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
Khomenko A., Komratova A., Isakov D. et al., , in: Computational linguistics and intellectual technologies. Papers from the Annual International Conference "Dialogue" (2025)Vol. 23.: [б.и.], 2025. P. 147–157.
The integration of automated speech analysis in diagnosing mental health disorders is becoming increasingly significant in both clinical and computational linguistics. This study aims to construct linguistic profiles for individuals with neurocognitive and affective mental disorders. Using speech transcriptions and relevant to the study computational techniques like lexical clustering and stylostatistical analysis, this research looks ...
Added: October 19, 2025
Индаков Г. С., Казначеев П. А., Майбук З. Я. et al., Геофизические исследования 2025 Т. 26 № 2 С. 99–124
The paper studies the clusterability of acoustic emission pulses during high-temperature heating of sandstone sample preliminarily subjected to mechanical loading. Mechanical loading was applied in uniaxial mode up to load close to destructive with appearance of signs of large cracks on the surface. After that, samples were subjected to thermal treatment up to 650 °C ...
Added: September 19, 2025
Sherstinova T., Вепринцева Д. А., Человек: образ и сущность. Гуманитарные аспекты 2025 № 2(62) С. 89–108
В статье рассматриваются три разных подхода к изучению тематики повседневных разговоров: экспертная тематическая разметка и два автоматических метода (тематическое моделирование и кластеризация). Материалом для исследования послужили расшифровки русской устной повседневной речи из корпуса ОРД, подготовленные на основе звукозаписей спонтанных разговоров, выполненных в естественных коммуникативных ситуациях (дома, на работе, в учебном заведении, в магазине, в поликлинике ...
Added: September 3, 2025
Dragalina-Chernaya E., В кн.: Четырнадцатые Смирновские чтения по логике: материалы Междунар. науч. конф., Москва, 19-21 июня 2025 г.: М.: Издатель Александр Воробьев, 2025. С. 80–82.
В докладе сопоставляются истолкования абстрактных логик как структур и как классификаций абстрактных структур. ...
Added: June 20, 2025
Lapteva A., Государство и право 2025 № 3 С. 124–131
Added: April 7, 2025
Maksimov A. G., Telezhkina M., / NRU Higher School of Economics. Series EC "Economics". 2024. No. 271.
The paper examines similarity of models with structural changes among heterogeneous panel data units. We propose applying a cosine metric to compare angles between vectors of weighted coefficients as a measure of closeness of economic models. Testing whether the cosine metric value is zero against nonzero, positive, and negative alternatives enriches traditional testing results. The ...
Added: March 10, 2025
Aleskerov F. T., Myachin A. L., Yakuba V. I., Доклады Российской академии наук. Математика, информатика, процессы управления (ранее - Доклады Академии Наук. Математика) 2024 Т. 520 № 1 С. 29–34
Предлагается новый метод быстрого поиска закономерностей в числовых данных большой раз-мерности, названный “туннельной кластеризацией”. Основными преимуществами нового методаявляются: относительно невысокая вычислительная сложность; эндогенное определение составаи количества кластеров; высокая степень интерпретируемости конечных результатов. Приведеноописание трех различных вариаций: с фиксированными гиперпараметрами, адаптивными, а так-же комбинированный подход. Рассмотрены три основных свойства туннельной кластеризации.Практическое применение приведено как на синтетических ...
Added: March 3, 2025
Гусейнов О., Degtyarev K. Y., IRETC MTÜ PAHTEI - Proceedings of Azerbaijan High Technical Educational Institutions 2025 Т. 48 № 1 С. 360–370
The concept of Z-number was proposed by Prof. Lotfi Zadeh to describe partial reliability of information, and it is a kind of fusion of fuzziness and probabilistic uncertainty. Z-number can be presented as a pair of fuzzy numbers Z(A,B) used to describe a value of a random variable X. The first component (A) is a ...
Added: February 20, 2025
Vlasenko D., Ушаков В. Г., Zaikin A. et al., Известия высших учебных заведений. Прикладная нелинейная динамика 2025 Т. 33 № 4 С. 557–566
The study of functional brain networks that support cognitive processes is one of the central goals of modern neuroscience. Functional magnetic resonance imaging (fMRI) is widely used to obtain data on brain activity. However, the high dimensionality and dynamic nature of fMRI data makes their processing challenging. Network-based methods of data representation offer a promising approach to describe ...
Added: January 14, 2025