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3rd International Workshop on Information, Computation, and control systems for Distributed Environments, ICCS-DE 2021

作者： Davydov, Artem Larionov, Aleksandr Nagul, Nadezhda Matrosov Institute for System Dynamics Control Theory of the Siberian Branch of the Russian Academy of Sciences 134 Lermontov str. Irkutsk664033 Russia

The paper illustrates an application of the recently developed method of dealing with controlled automata-based discrete event systems with the help of logical inference. The method based on the calculus of positively constructed formulas is extended on the case of systems built out of sets of modules. Specifications restricting system behavior are also supposed to be modular. Due to the special features of the calculus of positively constructed formulas, it may be applied at the upper level of a robot group control system. The case study of mobile robots pushing a block to a target area is considered. Copyright © 2021 for this paper by its authors.

关键词： Discrete event simulation

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Cloud service of Geoportal ISDCT SB RAS for machine learning 4

Cloud service of Geoportal ISDCT SB RAS for machine learning

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4th Scientific-Practical Workshop Information Technologies: Algorithms, Models, systems, ITAMS 2021

作者： Avramenko, Yuriy V. Popova, Anastasiya K. Fedorov, Roman K. Matrosov Institute for System Dynamics and Control Theory of Siberian Branch of Russian Academy of Sciences Lermontova str. 134 Irkutsk664033 Russia

The paper describes the cloud service of ISDCT SB RAS for machine learning research. The introduction discusses the relevance of creating a service. Further, the theoretical part is considered, which describes the component of the services and the principle of their interaction. Then the results of practical application and discussion are presented. In the conclusion, the results of the work are summarized. © 2021 Copyright for this paper by its authors.

关键词： Remote sensing

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Simulation of Nonlinear Dynamic Processes with Volterra Polynomials and Continued Fractions

Simulation of Nonlinear Dynamic Processes with Volterra Poly...

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International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM)

作者： Svetlana Solodusha Yuliya Kokonova Matrosov Institute for System Dynamics and Control Theory Melentiev Energy Systems Institute of SB RAS Irkutsk Russia Irkutsk National Research Technical University Irkutsk Russia

In this paper, we propose a technique for increasing the accuracy of modeling nonlinear dynamics of input-output systems using finite segments (polynomials) of Volterra integral power series. We highlight a case when the Volterra kernel identification problem is solved. The linear part of the Volterra polynomials of power N is formed as an equivalent continued fraction. Assuming that the corresponding Volterra kernel is known with some error, such an approach allows us to obtain a model with a new linear part that depends on the error. At the same time, prognostic properties of the integral model can be improved by the using the connection coefficient. The problem of indentifying such a parameter was solved using a special extremal problem. We analyzed the performance of the approach for some dynamic systems. Tests examples were used to compare our approach with the known modeling method that employs a series of Volterra polynomials whose transient responses are tuned to different test signal heights.

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Construction and Investigation of Exact Solutions with Free Boundary to a Nonlinear Heat Equation with Source

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Siberian Advances in Mathematics 2020年第2期30卷 91-105页

作者： Kazakov, A.L. Matrosov Institute for System Dynamics and Control Theory Irkutsk 664033 Russian Federation

Abstract: The article is devoted to the construction and investigation of exact solutions with freeboundary to a second-order nonlinear parabolic equation. The solutions belong to the classes ofgeneralized self-similar and generalized traveling waves. Their construction is reduced to Cauchyproblems for second-order ordinary differential equations (ODE), for which we prove existence anduniqueness theorems for their solutions. A qualitative analysis of the ODE is carried out bypassing to a dynamical system and constructing and studying its phase portrait. In addition, wepresent geometric illustrations. © 2020, Allerton Press, Inc.

关键词： exact solution existence theorem nonlinear heat equation with source qualitative analysis of ordinary differential equations thermal wave

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Comparative analysis of satellite and continuous surface measurements of gas impurities in the air basin at the Listvyanka station, Lake Baikal 28

Comparative analysis of satellite and continuous surface mea...

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28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

作者： Molozhnikova, Yelena V. Shikhovtsev, Maxim Yu. Popova, Anastasia K. Obolkin, Vladimir A. Khodzher, Tamara V. Limnological Institute Siberian Branch Russian Academy of Sciences 3 Ulan-Batorskaya St. Irkutsk664033 Russia Matrosov Institute for System Dynamics and Control Theory Siberian Branch Russian Academy of Sciences Lermontov St. Irkutsk664033 Russia

ISBN: (纸本)9781510657540

This study demonstrates a comparative analysis of surface and satellite measurements. The average concentrations of PM2.5 and CO, SO2, measured at the Listvyanka station located on the coast of Lake Baikal, were considered. Satellite measurements data (Copernicus Sentinel-5P) were recomputed based on the SILAM model. A joint analysis of data showed that satellite measurements were suitable for a spatial description of regional air pollution. The computed maxima coincided with the surface measurements in terms of time periods and general monitoring results. However, at extreme increases in concentrations of pollutants, a significant difference in the numerical values was registered. Satellite monitoring data confirmed the relationship between the increase in PM2.5 and CO concentrations in the air basin at the Listvyanka station and the transfer of smoke plumes from intense forest fires located at a distance of 1, 500-2, 000 km. © 2022 SPIE.

关键词： Surface measurement

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Zero-Order Stochastic Conditional Gradient Sliding Method for Non-smooth Convex Optimization 22nd

Zero-Order Stochastic Conditional Gradient Sliding Method fo...

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22nd International Conference on Mathematical Optimization theory and Operations Research , MOTOR 2023

作者： Lobanov, Aleksandr Anikin, Anton Gasnikov, Alexander Gornov, Alexander Chukanov, Sergey Moscow Institute of Physics and Technology Dolgoprudny Russia ISP RAS Research Center for Trusted Artificial Intelligence Moscow Russia Moscow Aviation Institute Moscow Russia Matrosov Institute for System Dynamics and Control Theory Irkutsk Russia Institute for Information Transmission Problems RAS Moscow Russia Caucasus Mathematical Center Adyghe State University Maikop Russia Federal Research Center "Computer Science and Control" RAS Moscow Russia

ISBN: (纸本)9783031432569

The conditional gradient idea proposed by Marguerite Frank and Philip Wolfe in 1956 was so well received by the community that new algorithms (also called Frank–Wolfe type algorithms) are still being actively created. In this paper, we study a non-smooth stochastic convex optimization problem with constraints. Using a smoothing technique and based on an accelerated batched first-order Stochastic Conditional Gradient Sliding method, we propose a novel gradient-free Frank–Wolfe type algorithm called Zero-Order Stochastic Conditional Gradient Sliding (ZO-SCGS). This algorithm is robust not only for the class of non-smooth problems, but surprisingly also for the class of smooth black box problems, outperforming the SOTA algorithms in the smooth case in term oracle calls. In practical experiments we confirm our theoretical results. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Stochastic systems

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Superparticle in an external chiral matter superfield

arXiv

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arXiv 2022年

作者： Adolfovich, Yuri Markov Markova, M.A. Bondarenko, A.I. Markov, N.Yu. Matrosov Institute for System Dynamics and Control Theory Siberian Branch Russian Academy of Sciences Irkutsk664033 Russia

In this paper the interaction Lagrangian of a superparticle with an external chiral (mattеr) superfield Ф(x,θ , θ ), invariant with respect to the global supersymmetry, is proposed. The kinematics of the superparticle is defined in an extended superspace described by superspace coordinates (xμ ,θα ,θα ), where xμ are pure bosonic coordinates, μ = 0,…, 3;θα and θα are additional fermionic Grassmann-valued spinors. With the purpose of the construction of the required Lagrangian, the chiral analogues of the supervector Aμ(x, θ, θ¯) and superspinor Aα(x, θ, θ), Aα (x, θ, θ) gauge fields are introduced, which are also matrices in color space. The problem considered in this paper is the further step in deriving the dynamical equations of motion for a spin color-charged particle moving in an external fermionic matter field. These equations of motion are of fundamental importance, for example, when taking into account the influence of fermionic background fields induced in a hot quark-gluon plasma (QGP) by thermal fluctuations on the dynamics of hard color-charged partons crossing the QGP. In turn, the solution of this problem will make it possible, at least at the qualitative level, to advance in the study of the motion in the external fermion matter field of such a complex physical object as a string. © 2022, CC BY.

关键词： Equations of motion

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Relationships between heavy metal migration in soils and landslide dynamics under conditions of modern climate change: A case study of Lake Baikal, Olkhon Island

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Science of the Total Environment 2025年 975卷 179285页

作者： Cherkashina, Tatiana Yu. Svetlakov, Artem A. Pellinen, Vadim A. Cherkashin, Evgeny A. Institute of the Earth's Crust Siberian Branch of Russian Academy of Sciences Lermontov St. 128 Irkutsk664033 Russia Matrosov Institute for System Dynamics and Control Theory Siberian Branch of Russian Academy of Sciences Lermontov St. 134 Irkutsk664033 Russia

The problem of studying landslide processes has attracted worldwide attention due to both the increase in human activities. New data for environmental monitoring of the Lake Baikal coast were obtained. The main goal aims to establish relationships between modern climate changes and the landslide process dynamics, as expressed in the assessment of Hg, Pb, Cd contamination levels, the identification of their possible sources and interelemental relationships, as well as the evaluation of some natural factors. Some improvements to previously developed analytical and physical-mechanical techniques have been made, which have enabled to improve some statistical characteristics for the analytical methods, as well as to achieve uniform moisture distribution throughout the tested sample to the specified values. The coastal zone was classified as moderately to heavily contaminated by Hg (2.97) and Pb (2.08) using the Cf method. The EF and Igeo methods indicated that a significant amount of Hg and Pb was probably from anthropogenic sources. The PCA indicated a strong inverse relationship between Hg and Cd (−0.833) in the landslide zone (L3 site) and a perfect positive relationship in the coastal zone (0.992) that suggests different sources and pathways. A change in soil temperature to positive values (from 0.6 to 1.1 °C) leads to an increase in the depth of thawing, which results in a lowering of the permafrost roof. This proves that permafrost rocks influence landslide activation, which in turn leads to migration of heavy metals in the landslide. These conclusions are fully consistent with the main goal of the study and the proposed hypotheses. These findings can help the authorities of the National Parks and other individuals in charge of making decisions regulate the anthropogenic load on the ecosystem of Olkhon Island and generally the Baikal region. © 2025

关键词： Lake pollution

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Organization of digital monitoring of the Baikal natural territory

Organization of digital monitoring of the Baikal natural ter...

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2020 International Online Conference on Environmental Transformation and Sustainable Development in Asian Region, EnTransAsia 2020

作者： Bychkov, I.V. Ruzhnikov, G.M. Fedorov, R.K. Khmelnov, A.E. Popova, A.K. Institute for System Dynamics and Control Theory SB RAS Irkutsk Russia

The Baikal Natural Territory includes Lake Baikal, its water protection zone, the basin within the territory of the Russian Federation, adjacent specially protected natural areas, and also the territory adjacent to the lake up to 200 kilometers wide to the west and northwest of it. The development of decisions to solve environmental problems of Baikal Natural Territory should be based on a comprehensive analysis of the monitoring data. The monitoring data and analysis methods are distributed among participants (organizations and departments). But data and analysis methods exchange is very low. An approach is proposed for the introduction of digitalization in the environmental monitoring of the Baikal natural territory, based on the integrated implementation of cyber-physical systems, the digital method of data transmission, as well as the use of digital ecosystems and platforms using the service-oriented paradigm, OGC standards, end-to-end and WEB technologies, cloud and distributed computing, large amounts of spatio-temporal data. Based on service-oriented paradigm digital resources and processing services implementing REST or WPS standard should be created by the monitoring participants. Requirements for digital resources have been defined. Infrastructure components have been developed to simplify development of digital resources, processing services and to organize interaction among participants. © 2021 institute of Physics Publishing. All rights reserved.

关键词： Monitoring

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Page Layout Analysis for Refining Table Extraction from PDF Documents

Page Layout Analysis for Refining Table Extraction from PDF ...

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2021 Ivannikov Ispras Open Conference, ISPRAS 2021

作者： Mikhailov, Andrey Shigarov, Alexey Matrosov Institute For System Dynamics And Control Theory Siberian Branch Of The Russian Academy Of Sciences Irkutsk664033 Russia Ivannikov Institute For System Programming Russian Academy Of Sciences Moscow109004 Russia

ISBN: (纸本)9781665423304

Perhaps, PDF is the most popular format to share non-editable documents. PDF documents are often untagged. In particular, this means that positions and the cell structure of tables are not designated explicitly. PDF table detection predicts bounding boxes of tables on document pages. Some of the predictions inevitably happen to be false. This negatively affects the accuracy of table structure recognition. We argue that the page layout analysis in pre- and post-processing can refine the table detection. We suggest pre-processing algorithms for the recognition of headings, running titles, paragraphs, and images in PDF pages. This allows selecting areas of interest inside pages where real tables can be placed. Then we use deep neural networks to predict tables only in these areas. We also propose post-processing algorithms to verify predictions and filter out false table candidates after table detection. Our empirical study shows that the proposed approach reduces errors in the table detection and improve the PDF table extraction overall. © 2021 IEEE.

关键词： Extraction

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