?
Analysis of weakly correlated nodes in market network
Computational Management Science. 2024. Vol. 21. Article 18.
The aim of the article is to analyze graphs of weakly correlated stocks. Characteristics
of these graphs such as number of edges, histogram of vertices degrees, degrees
distribution, hubs and cliques are investigated. Pearson correlation and Kendall correlation
are used to construct these graphs. Graphs constructed by the traditional
procedure and by Holm procedure are compared. Obtained results are exemplified
on the data of French stock market. In particular it is shown that reliable maximum
cliques contain very few nodes despite the large number of edges in the graph of
weakly correlated stocks.
Keywords: correlation independent setsHubsMarket networkStock returnHistogram of vertices degreesDegrees distribution
Publication based on the results of:
Springer, 2026.
Two volumes of the SPECOM 2026 proceedings contain a collection of submitted papers presented at SPECOM 2026, which were thoroughly reviewed by members of the Program Committee and additional reviewers consisting of almost 80 experts in the conference topic areas. In total, 65 regular full papers out of 99 submissions made via the EasyChair electronic ...
Added: September 20, 2026
Medvedev V., Annals of Global Analysis and Geometry 2026 Vol. 70 No. 2 P. 8–23
This paper studies three-dimensional compact static manifolds with boundary and positive scalar curvature. We prove that, under a suitable bound on the Ricci curvature, the orientable quotient of the Nariai static manifold with boundary is the only such manifold with connected boundary, provided that the zero-level set of the potential is connected and does not intersect ...
Added: September 19, 2026
Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2026 Vol. 36 No. 2 P. 323–334
In this paper, an improved approach for automatic wildlife detection in natural environments based on the integration of a neural network architecture with a two-stream attention mechanism and a novel preclassification step based on infrared data has been presented. The proposed method addresses one of the key challenges in environmental monitoring: the need for scalable ...
Added: September 19, 2026
Aleksei Samarin, Nazarenko A., Kotenko E. et al., Proceedings of the ACM on Management of Data, USA 2026 Vol. 4 No. 1 P. 1–28
Modern knowledge and large volumes of data are increasingly encoded within neural networks, making the task of simplifying their structures and reducing the number of parameters especially relevant, both to improve efficiency and to facilitate deployment in resource-constrained environments. This paper presents a novel approach to neural network compression that addresses redundancy at both the ...
Added: September 19, 2026
Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2025 Vol. 35 No. 2 P. 148–158
This paper describes our research on creating classifiers for microbial images (micrococci microscopy images) obtained from pictures of unfixed microscopic scenes. In our work, we propose an AutoML approach based on the automatic generation and analysis of the feature space for constructing the most optimal descriptors of microorganism images for subsequent classification. This makes it ...
Added: September 19, 2026
Aleksei Samarin, Alexander Savelev, Aleksei Toropov et al., Pattern Recognition and Image Analysis 2026 Vol. 36 No. 2 P. 302–312
The lack of annotated microscopic datasets remains a major obstacle to training robust deep learning models for microbial classification. In this paper, a novel data augmentation pipeline that uses visual–linguistic large-scale models to generate synthetic microscopic images of six different bacterial and nonbacterial classes has been proposed. Synthetic samples have gradually been added to the ...
Added: September 19, 2026
Springer, Cham, 2026.
computer vision ...
Added: September 19, 2026
Springer, Cham, 2026.
Added: September 19, 2026
FRUCT Oy, 2024.
Added: September 19, 2026
FRUCT Oy, 2024.
Added: September 19, 2026
FRUCT Oy, 2025.
Added: September 19, 2026
FRUCT Oy, 2026.
Added: September 19, 2026
Koldanov P., Koldanov A. P., Tsygankov V. V., Operations Research Forum 2025 Vol. 6 Article 164
One of the popular tools for analyzing network models of a market is the threshold similarity graph or market graph, which illustrates the strength and topology of correlations in the stock market. Several papers are devoted to the construction of such a graph in order to analyze correlations in specific stock markets. However, the reliability ...
Added: October 26, 2025
Smolovich A. M., Frolov A. V., Klebanov L. D. et al., Optics and Laser Technology 2024 Vol. 175 Article 110725
An optical security element containing an area of random rough relief is proposed. It combines the low cost of
mass replication inherent in traditional security holograms with the impossibility of holographic copying, when
the wave restored by the hologram is rewritten as a copy of this hologram. The proposed optical element is also
protected from contact and photographic ...
Added: May 16, 2025
Руденький Н. В., Medvedeva A., Шелепенков Д. М. et al., IEEE, 2024.
Added: October 11, 2024
Semenov D., Koldanov A. P., Koldanov P. et al., Annals of Mathematics and Artificial Intelligence 2024
In this paper we propose a new notion of a clique reliability. The clique reliability is understood as the ratio of the number of statistically significant links in a clique to the number of edges of the clique. This notion relies on a recently proposed original technique for separating inferences about pairwise connections between vertices ...
Added: January 30, 2024
Andreev V., Известия Смоленского государственного университета 2021 Т. 55 № 3 С. 88–101
The article investigates system relations in individual style, which is viewed as a set of specific features of linguistic means typical for a certain author. The attention is focused on authorial metaphor occupying the central position in linguistic research, especially in cognitive linguistics.
The paper deals with the analysis of metaphor in the individual style of ...
Added: October 25, 2023
Eltsov N., Khorkina N., Вопросы статистики 2023 Т. 30 № 3 С. 92–108
The authors of the article analyze the characteristics of alcohol consumption by working residents of Russia, depending on their professional and social status. The study is based on data from the Russian Longitudinal Monitoring Survey of the National Research University Higher School of Economics for the period 2013-2019. The sample of the analysis included working ...
Added: March 24, 2023
Smetanin S., Komarov M. M., IEEE Access 2022 Vol. 10 P. 18886–18898
A growing body of literature has examined the potential of machine learning algorithms in constructing social indicators based on the automatic classification of digital traces. However, as long as the classification algorithms’ predictions are not completely error-free, the estimate of the relative occurrence of a particular class may be affected by misclassification bias, thereby affecting ...
Added: February 22, 2022
Sizykh N., Sizykh D., , in: 2021 14th International Conference Management of large-scale system development (MLSD).: IEEE, 2021. P. 1–4.
It was analyzed the influence of stock exchanges on stock quotes of the automotive, energy and telecommunication companies. It was obtained comparative assessment of the profitability, risk and stability indicator of shares placed on different stock exchanges. ...
Added: February 4, 2022
Meshcheryakov R., Iskhakov S., Iskhakov A., , in: Cyber-Physical Systems: Modelling and Intelligent Control.: Springer, 2021. P. 301–320.
Added: October 17, 2021
Vukovic D., Lapshina K., Moinak M., North American Journal of Economics and Finance 2021 Vol. 58 No. 2021 Article 101457
This research analyse the US and the EU money markets interdependence from 2004
to 2018. The study explains to what extent the volatility of the chosen money markets
instruments in two regions is inter-correlated before, during and after the financial
crisis of 2008. We apply the econometric analysis and estimate time-series models of
class GARCH to study the historical ...
Added: May 5, 2021
Lovakov A., Agadullina E., European Journal of Social Psychology 2021 Vol. 51 No. 3 P. 485–504
This study estimates empirically derived guidelines for effect size interpretation for research in social psychology overall and subdisciplines within social psychology, based on analysis of the true distributions of the two types of effect size measures widely used in social psychology (correlation coefficient and standardized mean differences). Analysis of empirically derived distributions of 12,170 correlation ...
Added: January 8, 2021
Anufrienko A., Computing, Telecommunications and Control 2020 Vol. 13 No. 2 P. 7–13
This paper presents a correlation method for processing data on end devices and reducing
the amount of data transmitted over the network. Instead of expensive and complex network
devices, developers can use cheap and proven low-speed Internet of Things (ZigBee, NB IoT,
BLE) solutions for data transfer. The novelty lies in one of the features of this approach: ...
Added: August 27, 2020