发布求助
文献互助 智能选刊 最新文献

Modelirovanie i analiz dannyh最新文献

筛选
英文 中文
Pseudospectral Method for Finding Optimal Control of Trajectory Bundles Based on Multi-Agent Optimization Algorithms 基于多智能体优化算法的轨迹束最优控制伪谱方法
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130206
M.S. Karane
{"title":"Pseudospectral Method for Finding Optimal Control of Trajectory Bundles Based on Multi-Agent Optimization Algorithms","authors":"M.S. Karane","doi":"10.17759/mda.2023130206","DOIUrl":"https://doi.org/10.17759/mda.2023130206","url":null,"abstract":"<p>A class of problems of optimal control of nonlinear continuous deterministic systems under conditions of uncertainty is considered. To solve the problem, a numerical algorithm for finding the optimal control is formed, in which the parameterization of the control law is used, which depends on time and a set of coordinates of the state vector available for measurement. This approach is based on the approximation of the control law by a series using a system of basis functions with unknown coefficients. The search for unknown coefficients in the expansion of the control law is implemented using multi-agent optimization methods: a hybrid multi-agent interpolation search algorithm and a multi-agent algorithm based on the use of linear controllers for controlling the movement of agents. A software has been developed and two model examples and an applied problem of stabilizing a satellite with the help of engines installed on it have been solved.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generalization of Non-elementary Linear Regressions 非初等线性回归的推广
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130205
M.P. Bazilevskiy
{"title":"Generalization of Non-elementary Linear Regressions","authors":"M.P. Bazilevskiy","doi":"10.17759/mda.2023130205","DOIUrl":"https://doi.org/10.17759/mda.2023130205","url":null,"abstract":"<p>Earlier, the author developed a non-elementary linear regression consisting of a linear part and all possible combinations of min and max binary operations. This article is devoted to its generalization. For the first time a non-elementary linear regression with a linear part and all possible combinations of binary, ternary, ..., l-ary operations min and max has been introduced. The proposed model generalizes both linear regression and the Leontief function, and can be effectively used both for predicting and for interpreting the study object functioning. An estimation algorithm was developed using the method of least squares for non-elementary linear regressions without a linear part and with an l-ary operation min (max), i.e. regressions with specification in the form of a Leontief function. The essence of the algorithm is to form a set of possible values of slope coefficients, from which a point is selected with the minimum value of the residual sum of squares. A system of linear inequalities is identified that makes it possible to form such a set. Using the algorithm, a model of the gross regional product of the Irkutsk region was construct and its interpretation was given.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the Pedagogical Experiment Results on the Implementation of Distance Learning Technologies in the Teaching of Mathematical Disciplines for Technical Specialties of Universities 高校工科专业数学学科实施远程学习技术教学实验结果分析
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130211
Y.G. Martyushova
{"title":"Analysis of the Pedagogical Experiment Results on the Implementation of Distance Learning Technologies in the Teaching of Mathematical Disciplines for Technical Specialties of Universities","authors":"Y.G. Martyushova","doi":"10.17759/mda.2023130211","DOIUrl":"https://doi.org/10.17759/mda.2023130211","url":null,"abstract":"<p>The article considers the results of a pedagogical experiment on the implementation of modern distance educational technologies in the teaching of mathematical disciplines to students of technical specialties of higher education. As a basis for the experiment, an electronic textbook on the course \"Theory of the function of a complex variable\" was used. It was used as part of the distance learning system CLASS.NET to teach this discipline at the Moscow Aviation Institute. The article presents the results of the preliminary statistical analysis of the homogeneity of experimental and control groups of students and the results of their questionnaire in order to identify the motivation for the use of distance learning tools in the educational process. A comparative analysis of the current ratings of students of experimental and control groups, calculated at the time of conducting control measures during the semester, is provided. The effectiveness of using the developed distance learning technology (LMS) in the educational process is confirmed by the results of statistical studies of the final assessments of students obtained during full-time testing.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135359694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Problems of Natural Language Classification Using Methods of Classical Machine Learning 使用经典机器学习方法的自然语言分类问题
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130203
G.B. Sologub, V.A. Pukhov
{"title":"Problems of Natural Language Classification Using Methods of Classical Machine Learning","authors":"G.B. Sologub, V.A. Pukhov","doi":"10.17759/mda.2023130203","DOIUrl":"https://doi.org/10.17759/mda.2023130203","url":null,"abstract":"<p>This article describes the problems of classical machine learning methods in natural language classification. One of these tasks is the classification of structural elements in school essays. On its example, the shortcomings of classical machine learning are considered in comparison with other, more complex algorithms.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Problem of Allocation of Production Resources with a System of Constraints 具有约束系统的生产资源配置问题
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130208
V.A. Rasskazova, A.A. Skuridin
{"title":"The Problem of Allocation of Production Resources with a System of Constraints","authors":"V.A. Rasskazova, A.A. Skuridin","doi":"10.17759/mda.2023130208","DOIUrl":"https://doi.org/10.17759/mda.2023130208","url":null,"abstract":"<p>The problem of optimizing production and resource allocation have been always relevant. The paper deals with the problem of allocation of production resources with a system of constraints. As an example, the problem of optimizing the process of pouring raw aluminum into vacuum buckets in the electrolysis department of the foundry is considered. To solve this problem, a model of integer linear programming is proposed. The advantage of this approach is the ability to flexibly configure the system of constraints and minimized of objective in accordance with production priorities. The paper discusses the software implementation of the developed model and presents the results of a numerical experiment based on test samples. Based on the obtained solution, a conclusion is made about the effectiveness of the integer linear programming model in this optimization problem.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forecasting the Rating of a New Movie Based on its Metadata 基于元数据预测新电影的评级
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130204
G.B. Sologub, N.S. Sazon
{"title":"Forecasting the Rating of a New Movie Based on its Metadata","authors":"G.B. Sologub, N.S. Sazon","doi":"10.17759/mda.2023130204","DOIUrl":"https://doi.org/10.17759/mda.2023130204","url":null,"abstract":"<p>The article describes an approach to predicting the rating of a new film based on data known prior to its release, using classic machine learning models.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Superellipsoidal Approximations in the Speed-in-action Problem for a Two-dimensional Linear Discrete System with Bounded Control 二维有界控制线性离散系统作用速度问题的超椭球逼近
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130209
D.N. Ibragimov, V.M. Podgornaya
{"title":"Superellipsoidal Approximations in the Speed-in-action Problem for a Two-dimensional Linear Discrete System with Bounded Control","authors":"D.N. Ibragimov, V.M. Podgornaya","doi":"10.17759/mda.2023130209","DOIUrl":"https://doi.org/10.17759/mda.2023130209","url":null,"abstract":"<p>The paper considers a two-dimensional linear discrete system with bounded control. For the system, the problem of speed is solved, that is, the construction of a control process that transfers the system from the initial state to the origin in the minimum number of steps. If the set of acceptable control values has a superellipse structure, then the problem of calculating optimal control can be reduced to solving a system of algebraic equations. A superellipsoidal approximation method has been developed for sets of arbitrary structure. Examples are considered in the paper.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sufficient Conditions for the Existence of a Н∝-infinity State Observer for Linear Continuous Dynamical Systems 线性连续动力系统Н∝-∞状态观测器存在的充分条件
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130202
A.V. Panteleev, A.A. Yakovleva
{"title":"Sufficient Conditions for the Existence of a Н∝-infinity State Observer for Linear Continuous Dynamical Systems","authors":"A.V. Panteleev, A.A. Yakovleva","doi":"10.17759/mda.2023130202","DOIUrl":"https://doi.org/10.17759/mda.2023130202","url":null,"abstract":"<p>The article deals with the problem of finding the observer of the state vector of linear continuous non-stationary dynamical systems with uncertainty of the initial conditions, limited external influences and measurement errors over a finite time interval. Sufficient conditions for the existence of an observer are formulated and proved on the basis of the expansion principle. Relationships are obtained for finding the parameters of the observer and the worst laws of change in external influences and measurement errors. As a limiting case, the problem of observer synthesis for stationary linear dynamical systems on a semi-infinite time interval is considered. Two applied problems of estimating the aircraft state vector based on the results of incomplete and inaccurate measurements are solved.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of Scheme Selection for 3D Printing of Functional Objects from Composite Materials 复合材料功能物体3D打印方案选择优化
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130201
G.Yu. Deniskina
{"title":"Optimization of Scheme Selection for 3D Printing of Functional Objects from Composite Materials","authors":"G.Yu. Deniskina","doi":"10.17759/mda.2023130201","DOIUrl":"https://doi.org/10.17759/mda.2023130201","url":null,"abstract":"<p>The implementation of priority areas for the development of the Economy of the Russian Federation, the digital transformation of production, the improvement and development of new designs used at domestic enterprises in the aviation and rocket and space industries, energy, mechanical engineering and others, is largely associated with the use of polymer composite materials (CM), which provide optimal physical and mechanical characteristics of structures (functional objects). As reinforcing elements of CM, carbon fibers are widely used, because they have high specific strength. At the same time, the mechanical properties of products significantly depend on the direction of the fibers. One of the promising directions for the manufacture of objects from CM, which makes it possible to create structures of complex shape, is 3D printing technology. The use of 3D printing makes it possible to obtain structures with spatial reinforcement along specified trajectories. This is due to the fact that continuous carbon fiber reinforced polymer composite (CFRT) is used for printing. This allows full control over the location of the fibers during the printing process, which allows you to arrange 100% of the fibers in accordance with the required operating conditions of the object. However, practically unexplored are issues related to the optimization of the process of 3D printing of functional objects from CM by the method CFRT 3D printing in terms of controlling the location of fibers during printing, allowing to take into account the criteria for the destruction of the composite. This work is devoted to this goal, which proposes general approaches to setting and solving the problem of optimizing the selection of a 3D-printing scheme.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Is the «Inverted» Curriculum Solution or Problem? “倒式”课程是解决方案还是问题?
Modelirovanie i analiz dannyh Pub Date : 2023-06-27 DOI: 10.17759/mda.2023130212
A.I. Volkov, V.N. Lukin, L.N. Chernyshov
{"title":"Is the «Inverted» Curriculum Solution or Problem?","authors":"A.I. Volkov, V.N. Lukin, L.N. Chernyshov","doi":"10.17759/mda.2023130212","DOIUrl":"https://doi.org/10.17759/mda.2023130212","url":null,"abstract":"<p>The article is devoted to the current problem of reforming higher education in connection with the abolition of the Bologna system. Some experts suggest the idea of an \"inverted\" plan, where the initial stages of training are devoted to practical disciplines, and theoretical ones are transferred to senior courses. However, this approach raises a number of objections, the most significant of which is that students will not be interested in continuing their studies at all. The authors propose certain measures for the transformation of educational programs, in particular, the modification of the topics of practical classes in theoretical disciplines, the formation of unified sets of mandatory competencies at different levels, the active use of project-based learning, and a change in teaching style. These measures will improve the quality of students' training.</p>","PeriodicalId":498071,"journal":{"name":"Modelirovanie i analiz dannyh","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135503283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信