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Proceedings of the International Convention MIPRO

作者： A.Y. Sokolov I.R. Golovko E.A. Cherkashin Irkutsk State Technical University Irkutsk Russia Institute of System Dynamics and Control Theory SB RAS Irkutsk Russia

The paper deals with the problem of automatic extraction of a software project structure and its ontology from revision control system network of the project source code. The aim of the investigation is to determine the correlation between the project structure and ontology terms of the project domain, i.e., to answer the question about possibility to describe the structure of the project with terms of the ontology. If it will be true then a modification of the ontology can be interpreted as modification of the project structure.

关键词： Ontologies Thesauri Unified modeling language Indexes Linux Kernel

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Logical Lyapunov functions for analysis of dynamic behavior of hybrid models of switching circuits

Logical Lyapunov functions for analysis of dynamic behavior ...

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IEEE International Conference on systems, Man and Cybernetics

作者： P.K. Kuznetsov A.V. Lakeyev S.N. Vassilyev Samara Federal Technical University Samara Russia Control Theory of SB RAS Institute of System Dynamics Irkutsk Russia

Concerns hybrid models which describe real processes in switching circuits more adequately than automata networks and more efficiently than mathematical physics models. The models consist of the following interconnected equations: differential, operational and logical equations, where from the physical viewpoint the first ones describe dynamics of internal states of circuit elements, the second ones correspond to the dynamics of output signals of the elements, and the latter ones describe their logical functions. In particular, each component of right-side of internal state equations can be dependent on states and outputs of all the elements, We propose some constructive and qualitative method of analysis of dynamical properties. This method reduces the initial problems to analysis of more simple, comparison model and does not require the exhaustive search for initial states, delay parameters, etc. and in principle, overcomes higher dimension of circuit in comparison with numerical methods of mathematical physics. Logical Lyapunov functions (LLF) are used, and not only those that are elementary disjunctions. Criteria of controllability-type properties contain more weak condition of majorizing the LLF than homomorphism condition, although they require the additional condition of quasimonotonicity of right-side of comparison model.

关键词： Switching circuits Mathematical model Differential equations Automata Partial differential equations Finite difference methods Computer networks Physics computing Integrated circuit interconnections Delay

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Parallel Clustering Algorithm for the k-medoids Problem in High-dimensional Space for Large-scale Datasets

Parallel Clustering Algorithm for the k-medoids Problem in H...

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International Asian School-Seminar Optimization Problems of Complex systems (OPCS)

作者： Sergey Vandanov Aleksandr Plyasunov Anton Ushakov Department of Physics Novosibirsk State University Novosibirsk Russia Lab. of Mathematical Models of Decision Making Sobolev Institute of Mathematics of SB RAS Novosibirsk Russia Matrosov Institute for System Dynamics and Control Theory of SB RAS Irkutsk Russia

We present a robust, parallel primal-dual heuristic algorithm for the k-medoids clustering problem, a widely utilized method in data mining and machine learning. Our approach surpasses current algorithms by effectively addressing their limitations, such as time-consuming distance matrix calculations, inefficient nearest-neighbor searches, and difficulties in handling large-scale datasets. To overcome these challenges, we employ an efficient parallel implementation, combined with a pioneering subgradient search algorithm. We evaluate our algorithm on the BIRCH and Stanford Dog datasets and demonstrate its superiority over existing k-medoids clustering algorithms in terms of solution quality and run time. Additionally, we introduce a novel vectorization technique that enables our algorithm to handle various types of data, such as images, text, and point data. Overall, our work contributes to the field of data mining and machine learning by providing an efficient and effective solution for the k-medoids clustering problem. The proposed algorithm offers improved performance, and versatility, making it a valuable tool for a wide range of applications.

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Nonlinear Landau damping of a plasmino in the quark-gluon plasma

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Physical Review D 2001年第10期64卷 105009-105009页

作者： Yu. A. Markov M. A. Markova Institute of System Dynamics and Control Theory Siberian Branch Academy of Sciences of Russia P.O. Box 1233 664033 Irkutsk Russian Federation

On the basis of the Blaizot-Iancu equations, which are a local formulation of the hard thermal loop (HTL) equations of motion for soft fluctuating quark and gluon fields and their induced sources, the coupled kinetic equations for plasminos and plasmons are obtained. The equality of matrix elements for nonlinear scattering of a plasmino by hard particles in covariant and temporal gauges is established by using effective Ward identities. The model problem of the interaction of two infinitely narrow packets with fermion and boson quantum numbers is considered. The kinematical relations between wave vectors of the plasmino and plasmon are derived, when the effective pumping over of the plasma excitation energy from the fermion branch of plasma excitations to the boson branch and vice versa occur. The expression for the nonlinear Landau damping rate of a plasmino at rest is found, and a comparison with a plasmino damping constant obtained within the framework of the hard thermal loop approximation is made. The nonlinear Landau damping rate for normal quark excitations is shown to diverge like 1/q2 near the light cone where q is a four-momentum of excitations, and the improved Blaizot-Iancu equations removing this divergence are proposed.

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Problem of the noise-noise correlation function in hot non-Abelian plasma

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Physical Review D 2005年第11期71卷 117501-117501页

作者： Yu. A. Markov M. A. Markova Institute of System Dynamics and Control Theory Siberian Branch of Academy of Sciences of Russia 664033 Irkutsk P.O. Box 1233 Russian Federation

In this work on the basis of Kadomtsev’s kinetic fluctuation theory we present the more general expression for noise-noise correlation function in effective theory for ultrasoft field modes.

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Logical programming and data mining as engine for MDA model transformation implementation

Logical programming and data mining as engine for MDA model ...

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Proceedings of the International Convention MIPRO

作者： A.Y. Sokolov I.N. Terekhin E.A. Cherkashin S.O. Butakov A.A. Larionov Institute of System Dynamics and Control Theory SB Russian Academy of Sciences Irkutsk Russia National Research Irkutsk State Technical University Irkutsk Russia Institute of System Dynamics and Control Theory SB RAS Irkutsk Russia Institute of Mathematics Economics and Informatics Irkutsk State University Irkutsk Russia

In this paper, we present the description of our extension to Model Driven Architecture (MDA) methodology using the logical programming paradigm and also a practical example of application of our extension to the development process. Then we consider an induction approach of ontology from the revision control system repository. This ontology can be used in the development process as a platform independent model.

关键词： Unified modeling language Software Ontologies Merging Programming Engines Thesauri

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Scalar mesons LbL contribution to the (g-2) of muon in NχQM 21

Scalar mesons LbL contribution to the (g-2) of muon in NχQM

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21st International Baldin Seminar on High Energy Physics Problems, ISHEPP 2012

作者： Zhevlakov, A.S. Dorokhov, A.E. Radzhabov, A.E. Institute for System Dynamics and Control Theory SB RAS Irkutsk664033 Russia Bogoliubov Laboratory of Theoretical Physics JINR Dubna141980 Russia N.N.Bogoliubov Institute of Theoretical Problems of Microworld M.V.Lomonosov Moscow State University Moscow119991 Russia

The light-by-light contribution from the lightest scalar mesons to the anomalous magnetic moment of muon is calculated in the framework of the nonlocal chiral quark model. This contribution is found to be positive as the contribution of the lightest pseudoscalar mesons. The possible crosscheck of the sign of this contribution with help of the hadronic vaccum polarization is discussed. The combined scalar-pseudoscalar contribution of lightest mesons is estimated as (6.25±0.83)·10?10. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

关键词： Magnetic moments

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Solutions of traveling wave type for korteweg-de vries-type system with polynomial potential 9th

Solutions of traveling wave type for korteweg-de vries-type ...

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9th International Conference on Optimization and Applications, OPTIMA 2018

作者： Beklaryan, Levon A. Beklaryan, Armen L. Gornov, Alexander Yu. Central Economics and Mathematics Institute RAS Nachimovky prospect 47 Moscow117418 Russia National Research University Higher School of Economics Kirpichnaya Ulitsa 33 Moscow105187 Russia Institute for System Dynamics and Control Theory of SB RAS Lermontova street 134 Irkutsk664033 Russia

ISBN: (纸本)9783030109332

This paper deals with the implementation of numerical methods for searching for traveling waves for Korteweg-de Vries-type equations with time delay. Based upon the group approach, the existence of traveling wave solution and its boundedness are shown for some values of parameters. Meanwhile, solutions constructed with the help of the proposed constructive method essentially extend the class of systems, possessing solutions of this type, guaranteed by theory. The proposed method for finding solutions is based on solving a multiparameter extremal problem. Several numerical solutions are demonstrated. © Springer Nature Switzerland AG 2019.

关键词： Korteweg-de Vries equation

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QCD phase diagram at NICA energies: K+/π+ horn effect and light clusters in THESEUS

Acta Physica Polonica B, Proceedings Supplement

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Acta Physica Polonica B, Proceedings Supplement 2021年第3期14卷 486-489页

作者： Blaschke, D. Friesen, A.V. Ivanov, Yu.B. Kalinovsky, Yu.L. Kozhevnikova, M. Liebing, S. Radzhabov, A. Röpke, G. JINR Dubna Dubna141980 Russia Moscow115409 Russia University of Wroclaw Wroclaw50-204 Poland Matrosov Institute System Dynamics and Control Theory Irkutsk664003 Russia Irkutsk State University Irkutsk664003 Russia University of Rostock Rostock18051 Germany

We discuss recent progress in the development of the three-fluid hydrodynamics-based program THESEUS towards an event generator suitable for applications to heavy-ion collisions at the intermediate energies of the planned NICA and FAIR experiments. We follow the strategy that modifications of particle distributions at the freeze-out surface in the QCD phase diagram may be mapped directly to the observable ones within a sudden freeze-out scheme. We report first results of these investigations for the production of light clusters (deuterons and tritons) which can be compared to experimental data from the HADES and the NA49 experiments and for the interpretation of the "horn" effect observed in the collision energy dependence of the K+/π+ ratio. Medium effects on light cluster production in the QCD phase diagram are negligible at the highest NICA energies but shall play a dominant role at the lowest energies. A sharp "horn"-type signal in the K+/π+ ratio can be obtained when the onset of Bose condensation modelled by a pion chemical potential results in an enhancement of pions at low momenta (which is seen at the LHC energies) and would occur already in the NICA energy range. © 2021 Jagellonian University. All rights reserved.

关键词： Phase diagrams

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Multiobjective Vehicle-type Scheduling in Urban Public Transport

Multiobjective Vehicle-type Scheduling in Urban Public Trans...

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IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum (IPDPSW)

作者： David Peña Andrei Tchernykh Sergio Nesmachnow Renzo Massobrio Alexander Feoktistov Igor Bychkov Computer Science Department CICESE Research Center Ensenada Baja California México Computer Science Institute Universidad de la República Montevideo Uruguay Dynamics and Control Theory of SB Matrosov Institute for System RAS Irkutsk Russia

In this paper, we study the problem of vehicle scheduling in urban public transport systems taking into account the vehicle-type (different capacity and operating cost) known as VTSP. It is modeled as a multiobjective optimization problem (MOP). We propose a heuristic based on MOCell (Multi-Objective Cellular evolutionary algorithm) to solve the problem considering restrictions of government agencies in context of smart cities to improve the Intelligent Transportation systems (ITS). A set of non-dominated solutions represents different assignments of vehicles to cover trips of a specific route. The conflicting objectives of provider and users (passenger) are to minimize the total operating cost, and maximize the quality of service, reducing the waiting time and congestion in buses. We present experimental analysis and conclude that the proposed heuristic provides a good performance and competitive results in terms of convergence and diversity of the solutions along the Pareto front.

关键词： Optimization Processor scheduling Smart cities Vehicles Evolutionary computation Government

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