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A Method to Order Point Clouds for Visualization on the Ray Tracing Pipeline 在光线跟踪管道上为可视化点云排序的方法
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-06-01 DOI: 10.1134/s0361768824700075
P. Timokhin, M. Mikhaylyuk
{"title":"A Method to Order Point Clouds for Visualization on the Ray Tracing Pipeline","authors":"P. Timokhin, M. Mikhaylyuk","doi":"10.1134/s0361768824700075","DOIUrl":"https://doi.org/10.1134/s0361768824700075","url":null,"abstract":"","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual Representation of Geometry for Ray Tracing Acceleration in Optical Systems with Freeform Surfaces 自由曲面光学系统中光线跟踪加速的几何图形双重表示法
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-06-01 DOI: 10.1134/s0361768824700087
D. D. Zhdanov, I. Potemin, A. Zhdanov
{"title":"Dual Representation of Geometry for Ray Tracing Acceleration in Optical Systems with Freeform Surfaces","authors":"D. D. Zhdanov, I. Potemin, A. Zhdanov","doi":"10.1134/s0361768824700087","DOIUrl":"https://doi.org/10.1134/s0361768824700087","url":null,"abstract":"","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141400491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Unequilateral Apertures of Digital Filters Laplacian “Trunced Pyramid” and “Double Pyramid” on the Accuracy of Television Measuring Systems 数字滤波器拉普拉斯 "金字塔 "和 "双金字塔 "的不等边孔径对电视测量系统精度的影响
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-06-01 DOI: 10.1134/s036176882470004x
K. A. Rylov, K. S. Kupriyanova, A. V. Kamensky
{"title":"Influence of Unequilateral Apertures of Digital Filters Laplacian “Trunced Pyramid” and “Double Pyramid” on the Accuracy of Television Measuring Systems","authors":"K. A. Rylov, K. S. Kupriyanova, A. V. Kamensky","doi":"10.1134/s036176882470004x","DOIUrl":"https://doi.org/10.1134/s036176882470004x","url":null,"abstract":"","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
KIAM Astrodynamics Toolbox for Spacecraft Orbital Motion Design 用于航天器轨道运动设计的 KIAM 天体动力学工具箱
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824010092
M. G. Shirobokov, S. P. Trofimov
{"title":"KIAM Astrodynamics Toolbox for Spacecraft Orbital Motion Design","authors":"M. G. Shirobokov, S. P. Trofimov","doi":"10.1134/s0361768824010092","DOIUrl":"https://doi.org/10.1134/s0361768824010092","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The KIAM Astrodynamics Toolbox, a new software library for designing spacecraft orbital motion, is introduced. The toolbox is developed at the Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences in Fortran and Python languages and, therefore, combines computational speed and program design flexibility. The library can be useful for space flight mechanics specialists, as well as for students in relevant educational programs.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Survey of Software Dynamic Analysis Methods 软件动态分析方法概览
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824010079
V. V. Kuliamin
{"title":"A Survey of Software Dynamic Analysis Methods","authors":"V. V. Kuliamin","doi":"10.1134/s0361768824010079","DOIUrl":"https://doi.org/10.1134/s0361768824010079","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A review of software dynamic analysis methods is presented, mainly focusing on the methods supported by tools targeted on software security verification and applicable to system software. Fuzzing, runtime verification and dynamic symbolic execution techniques are considered in detail. Dynamic taint data analysis methods and tools are excluded since gathering technical details on them is complicated. The review of fuzzing and dynamic symbolic execution is focused mostly on the techniques to solve various problems that arise during operation of the tools rather than the particular tools that amount to a number greater than 100. In addition, the fuzzing counteraction techniques are considered.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multigroup Classification of Firing Pin Impressions with the Use of a Fully Connected Neural Network 利用全连接神经网络对撞针凹痕进行多组分类
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824010031
V. A. Fedorenko, K. O. Sorokina, P. V. Giverts
{"title":"Multigroup Classification of Firing Pin Impressions with the Use of a Fully Connected Neural Network","authors":"V. A. Fedorenko, K. O. Sorokina, P. V. Giverts","doi":"10.1134/s0361768824010031","DOIUrl":"https://doi.org/10.1134/s0361768824010031","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper discusses the use of a fully connected neural network to classify images of firing pin impressions. The purpose of this work is to investigate the effectiveness of clone images of firing pin impressions in improving the quality of training of fully connected neural networks. Another purpose of the work is to estimate the accuracy of multigroup classification of firing pin impressions left by different firearms by using a neural network. The scientific novelty of this work is in the use of augmentation for creating images of firing pin impressions to increase the number of objects in the training dataset and to artificially improve the feature diversity of objects of each class. The conducted investigation shows that the accuracy of classification of the analyzed objects reaches approximately 84% for a fixed value of the classification criterion and 94–98% when the classification is carried out based on three maximum signals on output neurons. The work is of interest to developers of automated ballistic identification systems.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Symbolic-Numerical Implementation of the Model of Adiabatic Guided Modes for Two-Dimensional Irregular Waveguides 二维不规则波导绝热导模模型的符号-数值实现
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824020063
D. V. Divakov, A. A. Tyutyunnik, D. A. Starikov
{"title":"Symbolic-Numerical Implementation of the Model of Adiabatic Guided Modes for Two-Dimensional Irregular Waveguides","authors":"D. V. Divakov, A. A. Tyutyunnik, D. A. Starikov","doi":"10.1134/s0361768824020063","DOIUrl":"https://doi.org/10.1134/s0361768824020063","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In this work, a symbolic-numerical solution of Maxwell’s equations is constructed, describing the guided modes of a two-dimensional smoothly irregular waveguide in the zeroth approximation of the model of adiabatic waveguide modes. The system of linear algebraic equations obtained in this approximation is solved symbolically. The dispersion relation is solved numerically using the parameter continuation method.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primitive Elements of Free Non-associative Algebras over Finite Fields 有限域上自由非关联代数的基元
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824020117
M. V. Maisuradze, A. A. Mikhalev
{"title":"Primitive Elements of Free Non-associative Algebras over Finite Fields","authors":"M. V. Maisuradze, A. A. Mikhalev","doi":"10.1134/s0361768824020117","DOIUrl":"https://doi.org/10.1134/s0361768824020117","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The representation of elements of free non-associative algebras as a set of multidimensional tables of coefficients is defined. An operation for finding partial derivatives for elements of free non-associative algebras in the same form is considered. Using this representation, a criterion of primitivity for elements of lengths 2 and 3 in terms of matrix ranks, as well as a primitivity test for elements of arbitrary length, is derived. This test makes it possible to estimate the number of primitive elements in free non-associative algebras with two generators over a finite field. The proposed representation allows us to optimize algorithms for symbolic computations with primitive elements. Using these algorithms, we find the number of primitive elements of length 4 in a free non-associative algebra of rank 2 over a finite field.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of Functional Programming Library for Parallel Computing on CUDA 在 CUDA 上使用并行计算函数式编程库
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824010055
M. M. Krasnov, O. B. Feodoritova
{"title":"The Use of Functional Programming Library for Parallel Computing on CUDA","authors":"M. M. Krasnov, O. B. Feodoritova","doi":"10.1134/s0361768824010055","DOIUrl":"https://doi.org/10.1134/s0361768824010055","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Modern graphics accelerators (GPUs) can significantly speed up the execution of numerical problems. However, porting programs to graphics accelerators is not an easy task, sometimes requiring their almost complete rewriting. CUDA graphics accelerators, thanks to technology developed by NVIDIA, allow one to have a single source code for both conventional processors (CPUs) and CUDA. However, parallelization on shared memory is still done differently and should be specified explicitly. The use of a functional programming library developed by the authors makes it possible to hide the use of one or another parallelization mechanism on shared memory within the library and make the user’s source code completely independent of the computing device used (CPU or CUDA). This article shows how this can be done.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computer-Algebraic Approach to First Differential Approximations: Van der Pol Oscillator 一阶微分逼近的计算机代数方法：范德波尔振荡器
IF 0.7 4区 计算机科学
Programming and Computer Software Pub Date : 2024-05-22 DOI: 10.1134/s0361768824020026
Yu. A. Blinkov
{"title":"Computer-Algebraic Approach to First Differential Approximations: Van der Pol Oscillator","authors":"Yu. A. Blinkov","doi":"10.1134/s0361768824020026","DOIUrl":"https://doi.org/10.1134/s0361768824020026","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>First differential approximation has been used to analyze various numerical methods for solving systems of ordinary differential equations. This has made it possible to estimate the stiffness of the ODE system that models the oscillations of the Van der Pol oscillator and the error of the method as well as to propose simple criteria for choosing a calculation step. The presented methods allow one to perform efficient calculations using computer algebra systems.</p>","PeriodicalId":54555,"journal":{"name":"Programming and Computer Software","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141153118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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