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2022 International Conference on Information Science and Communications Technologies (ICISCT)最新文献

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Cyclic Quasi-Orthogonal Matrices in Image and Signal Encoding 循环拟正交矩阵在图像和信号编码中的应用
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10147019
Sergeev Alexandr
orthogonal and quasi-orthogonal matrices with a limited number of element values and structured in some way are of considerable interest for many technical applications related to image processing and signal coding. The paper classifies and considers cyclic matrices and matrices with cyclic blocks. Descriptions of noise-resistant encoding methods of images and their protective masking using such matrices are given. Based on the analysis of the autocorrelation functions of new code sequences obtained from strings of modified cyclic quasi-orthogonal matrices and the simulation performed, numerical values of the quality parameters of the new code sequences are given. It is shown that their application makes it possible to reduce the maximum level of the side lobe of the aperiodic autocorrelation function, which allows us to conclude that their application is promising and that signal coding algorithms can be revised.
具有有限数量的元素值并以某种方式结构化的正交和拟正交矩阵对于许多与图像处理和信号编码相关的技术应用具有相当大的兴趣。本文对循环矩阵和含循环块的矩阵进行了分类和考虑。给出了图像的抗噪编码方法和利用这种矩阵对图像进行保护掩蔽的方法。在分析由修正循环拟正交矩阵串得到的新码序列的自相关函数和仿真的基础上,给出了新码序列质量参数的数值。结果表明,它们的应用使得降低非周期自相关函数旁瓣的最大电平成为可能,这使我们得出结论,它们的应用是有前途的,并且信号编码算法是可以修改的。
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引用次数: 0
Analysis of the Bigrams of the Letters of the Uzbek Alphabet for Cryptanalysis 用于密码分析的乌兹别克字母双字母分析
Pub Date : 2022-09-28 DOI: 10.1109/icisct55600.2022.10146879
N. Zaynalov, A. Shakarov, Muzaffar Saidmurodov, Abdinabi Mukhamadiyev, Dusmurod Kilichev
The development and development of means and methods of cryptography is directly accompanied by the development of cryptanalysis methods. The classical and one of the first methods of cryptanalysis is the frequency method. Historically, the first traces of frequency analysis of the text can be found in the works of scientists since the 10th century. And here the scientists of the East, such scientists as al-Kindi, made a great contribution to cryptanalysis. This paper presents an analysis of the frequencies of bigram of letters of the text in the Uzbek language. It should be noted that at the moment the Uzbek language is based on two alphabets, namely the Latin alphabet and the alphabet based on the Cyrillic alphabet. And now further changes in the alphabet of the Uzbek language are being considered. Determining the frequencies of bigram of the letters of the Latin alphabet of the Uzbek language is accompanied by difficulties associated with the fact that some letters are combinations of letters from the original alphabet and a symbol that is not in the alphabet, for example, the letter ‘ch’. Here the letter ‘h’ belongs to the given alphabet, but the letter ‘c’ does not. And this, in turn, leads to problems in the definitions of bigrams. Based on this, texts in the Uzbek language are analyzed here using the Cyrillic alphabet, where each letter corresponds to one character. Literary work is used as content. Based on this, in this article we present the results of determining the frequencies of bigram of letters of the Uzbek language based on the Cyrillic alphabet.
密码学的手段和方法的发展和发展,是直接伴随着密码分析方法的发展而来的。频率法是密码分析的经典方法之一,也是最早的方法之一。从历史上看,文本频率分析的第一个痕迹可以在10世纪以来科学家的作品中找到。在这里,东方的科学家,比如al-Kindi,对密码分析做出了巨大贡献。本文对乌兹别克语文本中字母双拼的频率进行了分析。应该指出的是,目前乌兹别克语是基于两个字母,即拉丁字母和基于西里尔字母的字母。现在正在考虑进一步改变乌兹别克语的字母表。确定乌兹别克语拉丁字母的双字母频率有困难,因为有些字母是原始字母和字母表中不存在的符号的组合,例如字母“ch”。这里字母“h”属于给定的字母表,但字母“c”不属于给定的字母表。这反过来又会导致双元图定义中的问题。基于此,本文使用西里尔字母分析乌兹别克语文本,其中每个字母对应一个字符。文学作品作为内容。在此基础上,本文给出了基于西里尔字母确定乌兹别克语双字母频率的结果。
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引用次数: 0
Critical Analysis of Validation Methods for Machine Learning Models Used in E-health Applications 电子医疗应用中机器学习模型验证方法的关键分析
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146901
Hakan Yekta Yatbaz, Adnan Yazici, E. Ever
Different types of data sets are established using various sensor-based networks and wearable devices for performing human activity recognition that can be used effectively in the e-health domain. Various machine learning models and relevant algorithms are used to perform detection with high accuracy. Depending on the characteristics of the data set, validation methods used to compute the accuracy may vary. The correct validation of machine learning algorithms is essential to correctly assess the performance of the models especially when the data analysed are related to the health domain. Activity recognition algorithms based on sliding windows with different overlapping ratios are popularly used for validation together with popular cross-validation methods such as k-fold, leave-one-out and leave-one-subject-out. In this study, validation methods commonly used for windowing-based activity recognition systems using wearable devices are analyzed. The advantages and disadvantages of each method are discussed taking into account various parameters. A case study, using the well-known MHEALTH data set, is presented with state-of-the art machine learning approaches. Experimental testing with a second window size using 10-fold cross-validation, a five-second window size using leave one out cross-validation, and a second window size using 5 fold cross-validation gave the highest accuracy, 96.71%, 95.65% and 95% respectively while the window overlap is 50%.
使用各种基于传感器的网络和可穿戴设备建立不同类型的数据集,以执行可在电子卫生领域有效使用的人类活动识别。使用各种机器学习模型和相关算法进行高精度检测。根据数据集的特点,用于计算精度的验证方法可能会有所不同。机器学习算法的正确验证对于正确评估模型的性能至关重要,特别是当分析的数据与健康领域相关时。基于不同重叠比的滑动窗口的活动识别算法与流行的交叉验证方法(如k-fold、留一个、留一个主体)一起被广泛用于验证。在本研究中,分析了使用可穿戴设备的基于窗口的活动识别系统常用的验证方法。考虑到各种参数,讨论了每种方法的优缺点。一个案例研究,使用著名的移动健康数据集,提出了国家的最先进的机器学习方法。使用10倍交叉验证的第二个窗口大小、使用留一交叉验证的5秒窗口大小和使用5倍交叉验证的第二个窗口大小的实验测试分别获得了最高的准确率,分别为96.71%、95.65%和95%,而窗口重叠为50%。
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引用次数: 0
Printed Antenna for Signal Analysis in the UHF Band 用于UHF频段信号分析的印刷天线
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146826
Akhmad Olmasov, Kh. B. Mirzokulov, Bekmirzo Djaniyev, Nodirjon Mardiyev
This article presents the properties and capabilities of a patch antenna (printed antennas). In the course of scientific research, using the CST Studio environment, simulation modeling of a patch antenna was performed. The antenna model consists of a ground layer, a substrate and an exciter in the form of a strip patch antenna. In the course of simulation modeling, results were obtained for the parameter S (return loss) and the radiation pattern. Next, an experimental sample of the antenna was created and measurement work was carried out. The obtained results show that this antenna is broadband and works effectively in the UHF band.
本文介绍了贴片天线(印刷天线)的特性和性能。在科研过程中,利用CST Studio环境对贴片天线进行了仿真建模。该天线模型由接地面层、基片和带状贴片天线形式的激励器组成。在模拟建模过程中,得到了回波损耗参数S和辐射方向图的计算结果。然后,建立了天线的实验样品,并进行了测量工作。实验结果表明,该天线具有宽带特性,在UHF频段内工作效率高。
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引用次数: 0
Development of Acceptable Risk Skills Among Students of Technical Higher Educational Institutions Based on Interactive Case Technologies 基于交互式案例技术的高职学生可接受风险技能培养
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146789
E. A. Borisova
The modern world has rejected the concept of absolute security due to the unattainability of the latter and has come to the concept of acceptable risk. The essence of the concept of acceptable risk lies in the desire to provide such a small security that society accepts in a given period of time, with which one can agree. Acceptable risk combines technical, economic, social and political aspects and represents some compromise between the level of safety and the possibilities of achieving it. Therefore, the development of acceptable risk skills based on interactive case technologies is the main task of the Life Safety discipline.
现代世界拒绝了绝对安全的概念,因为绝对安全是不可能实现的,并产生了可接受风险的概念。可接受风险概念的本质在于希望提供社会在一定时期内接受的、人们能够同意的很小的安全。可接受的风险结合了技术、经济、社会和政治方面,代表了安全水平与实现安全的可能性之间的某种妥协。因此,基于交互式案例技术的可接受风险技能的发展是生命安全学科的主要任务。
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引用次数: 1
Integrated information system for cadastre based on GIS and Web technologies 基于GIS和Web技术的地籍综合信息系统
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146844
Ilkhomjon Abdullaev, Abdumanap Nasirov, Jonibek Pirimov, Nargiza Abdullaeva
The modern land cadastre is a multi-purpose information system that is maintained in order to provide reliable information to all interested government bodies and land users for organizing the most complete rational and efficient use of land and their protection, planning the location and specialization of agricultural production, land reclamation, as well as other activities related to land use. With the implementation of Geographic Information Systems, the technologies used in the maintenance of the state land cadastre are changing significantly, and electronic resources are the highest priority. Uzbekistan is actively working to modernize the existing “paper” cadastral registration system by creating a National Geographic Information System and a modern Integrated Cadastral Information System and real estate registration as part of electronic government using geoinformation and Web-technologies. As a result, a database was created and this cadastral information system was successfully tested as an effective tool for data management, operational interdepartmental integration of information, as well as for making effective decisions in the field of land management and regional development planning. This article discusses the main advantages and existing disadvantages of these systems.
现代土地地籍是一个多用途的信息系统,它的维护是为了向所有感兴趣的政府机构和土地使用者提供可靠的信息,以便组织最完整、合理和有效的土地利用及其保护,规划农业生产的位置和专业化,土地复垦以及与土地利用有关的其他活动。随着地理信息系统的实施,用于国家土地地籍维护的技术正在发生重大变化,电子资源是重中之重。乌兹别克斯坦正在积极努力使现有的“纸质”地籍登记系统现代化,通过创建国家地理信息系统和现代综合地籍信息系统和房地产登记,作为使用地理信息和网络技术的电子政府的一部分。结果,建立了一个数据库,并成功地测试了这个地籍信息系统,作为数据管理、部门间信息业务一体化以及在土地管理和区域发展规划领域作出有效决策的有效工具。本文讨论了这些系统的主要优点和存在的缺点。
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引用次数: 0
An algorithm for parallel processing of traffic signs video on a graphics processor 在图形处理器上并行处理交通标志视频的算法
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146809
M. Umarov, Jamshid Elov, Sirojiddin Khalilov, Inomjon Narzullayev, Marat Karimov
In the lighting conditions such as snowing, hazing, raining, and weak lighting condition, the accuracy of traffic sign recognition is not very high. It is important to develop an algorithms for real-time fast detection of road signs from video images and use them in driver assistance systems. Firstly, we image preprocessing by using dark channel prior based image dehazing for remove noises from the input image. In this article, we develop a transposed image filtering method combined with other fast parallel filtering algorithms. We propose a high-speed and high-accuracy method by improving image dehazing algorithms and analyzing GPU architecture. In this, we quickly removing fog from HD video images using DCP with image quality and visual effects.
在下雪、雾霾、下雨、弱光等照明条件下,交通标志识别的准确率不是很高。开发一种从视频图像中实时快速检测道路标志并将其用于驾驶员辅助系统的算法非常重要。首先,采用基于暗通道先验的图像去雾方法对图像进行预处理,去除输入图像中的噪声。在本文中,我们开发了一种与其他快速并行滤波算法相结合的转置图像滤波方法。通过对图像去雾算法的改进和对GPU架构的分析,提出了一种高速、高精度的去雾方法。在此,我们使用具有图像质量和视觉效果的DCP快速去除高清视频图像中的雾。
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引用次数: 0
Synthesis of a test signal from a given autocorrelation function 从给定的自相关函数合成测试信号
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146850
Komil Rakhmatov, Kh. B. Mirzokulov
In this paper, we consider the problem of synthesizing a test signal from a given autocorrelation function. A formula for the energy spectrum is obtained. The method for synthesizing binary pulse processes proposed in this work makes it possible to simulate signals whose energy spectrum envelopes are close to the envelopes of the continuous part of the energy spectra of an equivalent first-order test sequence. The algorithm used in the calculations and the value of the parameter $lambda$ for the obtained pulse process are given. The problem of synthesizing pulse processes in this formulation is close to the problem of synthesizing quantum phase-shift keyed signals, usually used in radar, according to a given autocorrelation function.
本文研究了从给定的自相关函数合成测试信号的问题。得到了能量谱的计算公式。本文提出的合成二元脉冲过程的方法,使模拟能量谱包络与等效一阶测试序列的连续部分能量谱包络接近的信号成为可能。给出了计算中使用的算法和得到的脉冲过程参数$lambda$的值。该公式中合成脉冲过程的问题与根据给定的自相关函数合成雷达中常用的量子相移键控信号的问题很接近。
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引用次数: 0
Mathematical Modeling of Liquid-Gas Phase Equilibrium on the Example of Soda Production 以碱生产为例的液气平衡数学建模
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146864
Bayram Fayzullaev
In this article liquid-gas on the example of the calcinated soda is considered as the solution of a problem of phase balance. The analytical method is used for the solution of an objective. Results which are calculated with the help the program Matlab 7.5 (R2007b) are given in a table form. The activity coefficient for an important component in the calcinated soda production of carbon dioxide is calculated. Concentration of gas for each component of production admissible pressure are given in a graphic form.
本文以烧碱为例,考虑了相平衡问题的解。分析方法是用来解决一个问题的。在Matlab 7.5 (R2007b)程序的帮助下,计算结果以表格形式给出。计算了二氧化碳煅烧制碱过程中一个重要组分的活度系数。在生产允许压力的每个组成部分的气体浓度以图形形式给出。
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引用次数: 0
Comparative performance analysis the Aho-Corasick algorithm for developing a network detection system 比较性能分析Aho-Corasick算法开发网络检测系统
Pub Date : 2022-09-28 DOI: 10.1109/ICISCT55600.2022.10146815
K. Tashev, Irgasheva Durdona, Agzamova Mokhinabonu
Nowadays the Internet is very massive and the need for a system to protect the networks from being attacked becomes very important. One of the main goals of studying pattern matching techniques is their significant role in real-world applications, such as the intrusion detection systems branch. The purpose of the network attack detection systems NIDS is to protect the info communication network from unauthorized access. This article provides an analysis of the exact match and fuzzy matching methods, and discusses a new implementation of the classic Aho-Corasick pattern matching algorithm at the hardware level. The proposed approach to the implementation of the Aho-Corasick algorithm can make it possible to ensure the efficient use of resources, such as memory and energy.
现在的互联网是非常庞大的,需要一个系统来保护网络免受攻击变得非常重要。研究模式匹配技术的主要目标之一是它们在实际应用中的重要作用,例如入侵检测系统分支。网络攻击检测系统NIDS的目的是保护信息通信网络免受未经授权的访问。本文分析了精确匹配和模糊匹配方法,并讨论了经典的Aho-Corasick模式匹配算法在硬件层面的一种新实现。提出的实现Aho-Corasick算法的方法可以保证内存和能量等资源的有效利用。
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引用次数: 0
期刊
2022 International Conference on Information Science and Communications Technologies (ICISCT)
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