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The cluster analysis method as an instrument for selection of securities in the construction of an investment portfolio
P. 1–3.
Tyukhova E., Sizykh D.
In the paper are presented research results on the application of cluster analysis for the formation of a securities portfolio. There are identified features of cluster analysis applicating various indicators characterizing shares: share prices, share prices movement, and various market multipliers of issuers. It is shown the application possibility of cluster analysis in the Robo-Advisors' algorithm.
Kozlov N., Semenova M., Journal of Corporate Finance Research 2026 Vol. 20 No. 2 P. 108–135
This paper introduces a novel approach to identifying and operationalizing political connections of banks. We manually code 2,598 bankers who owned or worked in 115 Russian banks between 2015 and 2021 to classify political connections and uncover their institutional patterns through cluster analysis. We propose a set of variables that capture the origins, relevance, and ...
Added: July 6, 2026
Porosenkov G., Цепелевич М. М., Кизяков Д. А. et al., Информатика и образование 2025 Т. 40 № 2 С. 57–65
Research on learner engagement in massive open online courses (MOOCs) has predominantly focused on those developed by educational and non-profit organizations. However, the significance of MOOCs offered by IT service providers (vendors), particularly in the field of cloud computing, has gained prominence in recent years. These vendor-led courses facilitate interaction between learners and vendors, underscoring the ...
Added: January 18, 2026
Dávila Bolliger R., Brandão Fischer B., Ferreira de Faria A. et al., The Journal of Technology Transfer 2025 Vol. 50 P. 1461–1490
Science and Technology Parks (STPs) have become popular instruments among policymakers worldwide. Yet, empirical studies have questioned the effectiveness of STPs in generating the desired impacts on tenant companies and in regional development. Recent literature attributes these conditions to a lack of focus on the inherent heterogeneity of STPs and their respective tenants. This research ...
Added: November 12, 2025
Gabdukaev E., Naidenova I. N., Parshakov P., Общество и экономика 2025 № 10 С. 39–55
This study presents a systematic analysis of 7,566 articles from international peer-reviewed journals on transport infrastructure and economic development. Using machine-learning and cluster-analysis techniques, it identifies the field’s key research directions. The results reveal four dominant thematic clusters: sustainable transport, digitalisation, regional corridors and decarbonisation. Topic-trend analysis shows a rapid surge of interest in the ...
Added: October 10, 2025
Бураков Н. А., Якобсон Л. И., Вопросы экономики 2025 № 9 С. 27–42
The paper justifies the need to address sustainable characteristics of both individual and collective participants in the processes economic development strategic planning (EDSP), while extant research mostly focuses on structural and organizational issues. Our study shows the relevance of applying the concept of strategic culture with regard to EDSP, although currently it is used by ...
Added: September 11, 2025
Sergei L. Semakov, , in: 2023 9th International Conference on Control, Decision and Information Technologies (CoDIT) (Italy, Rome, July 03–06, 2023).: IEEE, 2023. P. 142–144.
A technology is proposed for estimating the probability that a share price will fall below the minimum level. The exact expression is obtained for the required probability under the assumption that the behavior of the share price is described by the well-known model of Samuelson, according to which the relative change in price is the ...
Added: August 8, 2025
IEEE, 2023.
It is with great pleasure that we welcome all the participants of the 9th Conference on Control, Decision and Information Technologies (CoDIT 2023) at the University of Rome La Sapienza, Facolta di lngegneria Civile e lndustriale, July 3-6, 2023. CoDIT, at its 9t h edit bn, is now an affirmed conference in t t-e field ...
Added: August 8, 2025
Sergei L. Semakov, , in: 2024 10th International Conference on Control, Decision and Information Technologies (CoDIT) (Malta, Valletta, July 01–04, 2024).: IEEE, 2024. P. 697–699.
A technology is proposed for estimating the probability that the share price will leave the established corridor by a given point in time. The exact expression is obtained for the required probability under the assumption that the behavior of the share price is described by the well-known model of Samuelson, according to which the relative ...
Added: August 4, 2025
Boboshko D., Treistar D., Kulapova A., Lecture Notes in Networks and Systems 2024 No. 1092
The article presents the results of a study of the conceptual apparatus used in describing the processes of formation and functioning of banking ecosystems. Advanced search filters were applied to select the most relevant scientific literature, which made it possible to objectively narrow and clarify the scope of bibliometric research. The content of more than ...
Added: May 26, 2025
Терещенко Д. С., Левкин Н. В., Псковский регионологический журнал 2025 Т. 21 № 1 С. 22–40
The article is devoted to the study of the publication activity of universities in the regions of the Russian Federation. The study is based on data from the OpenAlex project, which provides open and free access to information on scientific publications. The analysis used the principal component method and k-means clustering. As a result, three ...
Added: April 3, 2025
F. T. Aleskerov, A. L. Myachin, V. I. Yakuba, Doklady Mathematics 2024 Vol. 110 No. 3 P. 474–479
We propose a novel method for rapid pattern analysis of high-dimensional numerical data, termed tunnel clustering. The main advantages of the method are its relatively low computational complexity, endogenous determination of cluster composition and number, and a high degree of interpretability of final results. We present descriptions of three different variations: one with fixed hyperparameters, ...
Added: March 3, 2025
Zuev V. N., Канихин Т. Н., Вестник Южно-Уральского государственного университета. Серия: Экономика и менеджмент 2024 Т. 18 № 4 С. 7–14
This article analyzes the key features of the formation and clustering of EU energy policies in the renewable energy sector. Global problems, such as climate change, and local problems in EU countries, associated with their dependence on oil and gas imports, are contributing to the transition of EU countries to renewable energy sources. However, this ...
Added: February 9, 2025
Bobryshev A., Baydakov A., Zvyagintseva O. et al., Russian Journal of Economics 2023 Vol. 9 No. 4 P. 386–406
The article classifies rural territorial entities using the systems approach, which is based on identifying their key subsystems — natural, social, and economic. The study aims to develop and implement a procedure for creating a multiaspect assessment range of rural development levels relying on the combined use of multivariate statistical analysis
and the computational and expert ...
Added: November 12, 2024
Bogdanova T., Ощепков М. Е., Социология науки и технологий 2024 Т. 15 № 3 С. 231–252
In the research field of corporate performance management (CPM) the new “second generation” of scientists is gradually forming, while the key role of the “first generation” of leading scholars is preserved. Considering the structural changes in socio-economic processes, the existing research due to obsolescence does not cover a significant period in the development of the ...
Added: October 1, 2024
Veretenenko I. I., Trofimov Y. A., Krylov N. A. et al., Biochimica et Biophysica Acta - Biomembranes 2024 Vol. 1866 No. 7 Article 184376
Lateral heterogeneity, or mosaicity, is a fundamental property inherent to cell membranes that is crucial for their functioning. While microscopic inhomogeneities (e.g. rafts) are easily detected experimentally, lipid domains with nanoscale dimensions (nanoclusters of nanodomains, NDs) resist reliable characterization by instrumental methods. In such a case, important insight can be gained via computer modeling. Here, ...
Added: September 19, 2024
Lebedeva S., Теневая экономика 2022 Т. 6 № 4 С. 215–240
As in any sector of the economy, there are also shadow segments in tourism. Shadow activity in tourism not only poses a threat to the economic security of the countries in which it is carried out, but also contradicts the global vector of the world economy’s, culture’s and society’s development, including the field of implementing ...
Added: May 7, 2024
Bobryshev A., Baydakov A., Olga S. Zvyagintseva et al., Russian Journal of Economics 2023 Vol. 9 No. 4 P. 386–406
The article studies rural areas using the systems approach, which is based on identifying their key subsystems—natural, social, and economic. The study aims to develop and implement a procedure for creating a multi-aspect assessment range of rural development levels relying on the combined use of multivariate statistical analysis and the computational and expert comparison of ...
Added: March 19, 2024
Safranchuk I., Nesmashnyi A., Chernov, D.N., Russia in Global Affairs 2023 Vol. 21 No. 3 P. 159–180
The scale and global consequences of the Ukraine crisis do not allow even countries that are not directly involved in the standoff to ignore it. Most members of the international system have to respond to the current events and formulate their position on the conflict. When analyzing these positions, the epistemic community tries to explain ...
Added: September 17, 2023
Жеглов С. А., Социология: методология, методы, математическое моделирование 2022 № 54-55 С. 129–187
In most of current papers devoted to the analysis of protest-repression nexus, the research
design misses the dynamic nature of this nexus, which seems methodologically incorrect. The
analysis of the dynamics allows us to identify the role of various factors influencing the course of
this conflict. The variety of different dynamics of the number of protesters and the ...
Added: August 29, 2023
Nascimento S., Martins A., Relvas P. et al., Lisbon: Springer Publishing Company, 2022.
This work proposes a spatiotemporal clustering approach for the analysis of coastal upwelling from Sea Surface Temperature (SST) grid maps derived from satellite images. The algorithm, Core-Shell clustering, models the upwelling as an evolving cluster whose core points are constant during a certain time window while the shell points move through an in-and-out binary sequence. ...
Added: July 25, 2023