Tashkent University of Information Technologies

Permanent URI for this communityhttps://tuit-demo.gcris.com/handle/123456789/1

Tashkent University of Information Technologies named after Muhammad al-Khwarizmi is an educational institution that provides students with the academic knowledge necessary to become highly qualified specialists and actively shape the future of our country. The wide range of subjects offered by the university provides students with a modern education and, in turn, represents a solution to social and global challenges. Continuing education lays the foundation for lifelong exploration. The concept of innovation is seen as an important basis for the continuous improvement of the university. The university strives to maintain the quality of education at the level of world requirements, providing continuous training for teachers by supporting dialogue between teachers and students.

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Citation Count: 1
Algorithm for the Selection of Informative Symptoms in the Classification of Medical Data
(World Scientific Publ Co Pte Ltd, 2020) Nishanov, A. Kh; Ruzibaev, O. B.; Chedjou, J. C.; Kyamakya, K.; Abhiram, Kolli; De Silva, Perumadura; Khasanova, M. A.; Department of System and Applied Programming
In this paper the issues like preprocessing of medical data, reclassification of the training sets and determining the importance of classes, formation of reference tables, selection of an informative features set that differentiate between class objects, formed by medical professionals are discussed and solved. Mainly in the most studied references [5-8, 11-13] the Fisher's criterion is used to obtain solutions to problems/tasks. Also for solving problems, the algorithms for an estimate calculation as well as the related software programs are used. For all cases, algorithms and software programs are suggested. The study consists of two important steps. The first step is to build a reference table, based on the importance of the features and objects as well as their contribution to the classes [1-4, 9, 10]; the second step is concerned with the choice of the most useful characteristic features set to be investigated. This corresponds to solving the issue of selection of set of informative features from a given table, their visualization, and the determination of the contribution of the features set to the formation of classes [1-13].
Citation Count: 0
Analysis of Criteria for Ensuringinformation Security of Scientific and Educational Resources
(Rezekne Higher Educ inst-rezeknes Augstskola, 2018) Rakhmatullaev, Marat; Normatov, Sherbek; Department of Information and Library Systems
At present, information and knowledge in the field of science and education are strategic resources. From their formation, renewal, distribution depends not only the scientific and educational spheres, but also the socio-economic development of the country. Therefore, the confidentiality, integrity and accessibility of databases of a scientific and educational nature are an important subject of research. The purpose of this article is to conduct an analysis of methods, criteria for assessing units of scientific information in terms of ensuring information security. Classification of criteria for the evaluation of scientific and educational information (SEI), their systematization, analysis of problem of ensuring the security of information resources are given. Also, the information infrastructure development indicators and projects implemented in the field of information security are outlined. Evaluation of SEI units is carried out by experts who themselves have a weighting factor and are dependent on their qualifications. The results of the research are the basis for the creation of an automated system for ensuring information security in the corporate library system of academic libraries. The corporate network forms an electronic public library, distributes the SEI between resource users. The information security system will ensure the regulation of access to resources.
Citation Count: 1
Analysis of Methodology of Rating Evaluation of Digital Economy and E-Government Development in Uzbekistan
(Anadolu Univ, 2022) Nishanov, Akhram Khasanovich; Norboyo'g'li, Saidrasulov Sherzod; Satimbaevich, Babadjanov Elmurad; Department of System and Applied Programming
This article discusses the new rating assessment methodology approved by the Cabinet of Ministers of the Republic of Uzbekistan on June 15, 2021 "On measures to further improve the rating system of the digital economy and e-government" No. 373. initially the indicators are examined. In accordance with the Strategy "Digital Uzbekistan - 2030" in order to assess the state of digital transformation in the regions, a methodology for rating the level of digital development of regions was developed, which made it possible to diagnose the state of digitalization in the regions. In the rating assessment methodology, the indicators used by the United Nations (UN) to assess the development of information technology and the introduction of e-government in countries around the world have been adopted.
Citation Count: 0
Classification Algorithms With a Complex Structure in Pattern Recognition
(IEEE Computer Society, 2024) Nishanov, A.Kh.; Allamov, O.; Rakhmanov, A.T.; Yusupova, J.; Ruzibaev, O.B.; Department of System and Applied Programming
The article considers in the intellectual processing of information, moving from a large unit of measurement to a smaller, more important unit of measurement, selecting sets of informative symbols and classifying symbols, developing modern recognition systems that help specialists in the field, as well as evaluating the states of objects to be classified, developing a classification algorithm for multi-class cases of educational samples. The development of a multi-class algorithm for symbol classification serves to develop the theory of symbol recognition. It deals with the construction of a decision rule construction algorithm. Its main purpose is to determine which of the given classes the recognized object belongs to. The complexity or simplicity of the proposed algorithm depends on the number of classes participating in the study sample. If the number of classes is two, then the formulation of decision rules is simple. That is why the classification algorithms proposed by most authors are solved for cases where the number of classes is three or more, the decisive rule in the matter of classification of objects is solved by making two classes. The construction of a multi-class decision rule for classification, which takes into account all classes at the same time, is a complex and urgent issue. In the article, in the classification of objects, a multi-level complex structured decision rule was developed based on special inequalities, and two-, three- and multi-class classification algorithms were developed. © 2024 IEEE.
Citation Count: 0
Comprehensive Study on the Design and Optimization of Log-Periodic Antennas for Ultrahigh Frequency Telecommunication Systems
(IEEE Computer Society, 2024) Gubenko, V.A.; Berdiyev, A.A.; Aripova, U.Kh.; Alimuhammedova, M.E.; Department of Teleradiobroadcasting systems
The main component of modern wireless telecommunications networks is the log-periodic antenna, which is designed to operate at high frequencies. It meets the requirements of modern high-frequency technologies and provides reliable and efficient data transmission in a given frequency range. The wide range of operating frequencies and high directionality make the log-periodic antenna an ideal choice for modern telecommunication communication systems. The log-periodic antenna is capable of efficiently transmitting signals over long distances and ensuring stable communication in changing radio frequency environments. In this article, we will explore research findings concerning the modeling of electrical parameters and directional characteristics of antennas operating in the ultra-high frequency range. This exploration involves augmenting the quantity of wideband log-periodic antenna elements utilized in wireless communication systems, altering the material composition of such antennas, and varying the operational environment. The process of designing an antenna device using computer software can be divided into the following main stages: problem formulation, structural synthesis, mathematical modeling and analysis of electrical properties, parameter optimization, and analysis of the antenna's radiation pattern. The scientific research was modeled using the MMANA-GAL program within the frequency range of 450-870 MHz. This program facilitates the easy preparation of information for calculations and analysis of results. Both text and graphical modes were utilized for constructing the antenna model and displaying the program's outcomes. © 2024 IEEE.
Citation Count: 0
Development of Optoelectronic Control Measurement System Based on Attenuated Total Reflectance Effect
(IEEE Computer Society, 2024) Rakhimov, B.N.; Kengesbayev, S.K.; Berdiyev, A.A.; Department of Teleradiobroadcasting systems
This paper delves into the refractometric methodology for monitoring liquid media within the infrared spectrum, presenting a pioneering design of an optoelectronic system anchored on an attenuated total reflectance element. The proposed system exhibits heightened sensitivity, tailored for precise analysis of optical parameters of liquid media products. Utilizing key components such as light-emitting diodes, a cuvette, the attenuated total reflectance element, and an optical detector, this system epitomizes versatility and efficacy across diverse applications. Through the integration of attenuated total reflectance elements, researchers and engineers can develop highly sensitive instruments, facilitating non-destructive testing, chemical analysis, and environmental monitoring. The inherent flexibility in such systems enables customization to meet specific measurement requirements, ranging from industrial process monitoring to medical diagnostics, by adjusting parameters like angle of incidence, light wavelength, and optical material selection. This paper contributes to advancing optoelectronic control measurement systems, offering enhanced capabilities for accurate and reliable assessment of liquid media properties in various fields. © 2024 IEEE.
Citation Count: 0
Development of the Librarianship: Analysis of the Status of Librarian Personnel Training in Uzbekistan
(Rezekne Higher Educ inst-rezeknes Augstskola, 2020) Ganieva, Barno; Department of Information and Library Systems
The paper aims to discuss the development of library science in Uzbekistan and the analysis of the current state of training in the field of librarianship. Training in the library sector has always been actual, since libraries are an integral part of the continuing education of the republic. The article provides an analytical overview of the development of the industry interconnected with human resources. The urgency of the problem lies primarily in the fact that it is aimed at substantiating a new approach to the study of the training and professional development of library specialists. The problem of training library workers needs to be developed, both methodological and theoretical foundations. At the same time, the development of a private scientific methodology in the library profession, including in the history and theory of training and professionalization of librarians, allows us to outline the framework for further scientific research.
Citation Count: 2
Expert System With Fuzzy Logic for Protecting Scientific Information Resources
(Ieee, 2020) Rakhmatullaev, Marat; Normatov, Sherbek; Department of Information and Library Systems
Analysis of the state of development of research on the protection of valuable scientific and educational databases, library resources, information centers, publishers show the importance of information security, especially in corporate information networks and systems for data exchange. Corporate library networks include dozens and even hundreds of libraries for active information exchange, and they (libraries) are equipped with information security tools to varying degrees. The purpose of the research is to create effective methods and tools to protect the databases of the scientific and educational resources from unauthorized access in libraries and library networks using fuzzy logic methods. As a model and solution method, a fuzzy model of second-type correspondences is proposed, which makes it possible to comprehensively solve the problem of identifying threats in the event of a situation, as well as provide recommendations on how to eliminate them. For the creation of a knowledge database, experts are involved who determine the functions of belonging to "Situation-Threat-Methods of eliminating threats". The research results are used in the expert system the corporate network of electronic libraries to protect scientific and educational information from unauthorized access.
Citation Count: 0
Extended Model of Access Control for the Library Information Systems
(Ieee, 2017) Normatov, Sherbek; Rakhmatullaev, Marat; Department of Information and Library Systems
In this article were analyzed existing models of access control in information systems, and was explored an extended model of building access control for an automated information and library system. As the operating factor on the proposed model, operators and their functions were chosen. In addition, the generalized structure and algorithm of the proposed model is given.
Citation Count: 3
Flying Ad Hoc Network Expedited by Dtn Scenario: Reliable and Cost-Effective Mac Protocols Perspective
(Ieee, 2020) Arsheen, Sobiya; Wahid, Abdul; Ahmad, Khaleel; Khalim, Khujamatov; Department of Data Communication Networks and Systems
Flying Adhoc Network (FANET) is an emerging topic of research in the wireless network area, FANET has several common features with its predecessor e.g. Mobile Adhoc Network (MANET) and Vehicle Adhoc Network (VANET), but the network has several unique features also which make it different from other networks. The sparseness of nodes, coupled with frequent changing of topology significantly affects the data transmission rate of the network. To overcome this problem, FANET can be assisted with Delay Tolerant Network (DTN) approach to exploit its mobility and routing features. The main aim of this work is to make Flying Adhoc Network reliable by deploying two MAC protocols i.e. IEEE 802.11 and IEEE 802.15 and realize the functionality of Delay Tolerant Network (DTN) in a FANET.
Citation Count: 0
Information Support of High Schools in Corporate Library Network
(Rezekne Higher Educ inst-rezeknes Augstskola, 2014) Rakhmatullaev, M.; Department of Information and Library Systems
The paper includes information about some results of research on information library network of nzore than sixty Uzbekistan universities to provide them with scientific and educational information. It is being known there can be a great number of models of their realization and also their efficiency differs. Therefore, it is very important to find effective models of decision-making in information library network (ILN). At present time Cloud technologies have started to be developed actively both in corporate networks, and in global information environments. Use Cloud Computing in information-library networks can essentially raise efficiency as of user service, and of network administration. The experiments done in corporate network of academic libraries of Uzbekistan using ARMAT system have shown advantages of its applications.
Citation Count: 0
Integrated Intelligent System for Scientific and Educational Information Retrieval
(Rezekne Higher Education Institution, 2024) Musaev, M.; Rakhmatullaev, M.; Normatov, S.; Shukurov, K.; Abdullaeva, M.; Department of Information and Library Systems
The relevance of creating information systems using artificial intelligence methods and tools is dictated by the following reasons: The volume of scientific and educational information is growing; Traditional information retrieval methods have exhausted themselves. Using only deterministic and iteration methods, rigid algorithms don't give the expected results. They require more time to process information and more memory. Significant progress in recent years in the development of artificial intelligence (AI) methods and systems gives hope that their use will significantly reduce the time needed to search for data for scientific research and educational activities. The aim of the research results presented in the article is to increase the efficiency for scientific and educational information retrieval based on the use of AI methods implemented in the integrated intelligent information system “SMART TUIT". The article presents the results of theoretical and applied research obtained by several departments of the Tashkent University of Information Technology (TUIT) in solving the following tasks: Voice recognition for subsequent processing; Pattern recognition in order to identify the users of information; Search and processing of scientific and educational resources in electronic libraries; Analysis of information needs of users depending on the level of competence and type of activity; Evaluation of scientific and educational information to identify the most important data sources; Geoinformation system to solve the problems of the location of the information source. Initially, each research area in the departments was aimed at solving a certain class of problems related to medicine, linguistics, electronic libraries, corporate networks, information security systems, etc. The TUIT creative group decided to combine efforts to apply the results obtained to solve the important problem of intellectualizing the search for sources of scientific and educational information among a large amount of data. © 2024 Mukhammadjon Musaev, Marat Rakhmatullaev, Sherbek Normatov, Kamoliddin Shukurov, Malika Abdullaeva.
Citation Count: 0
A Method for Determining and Evaluating Webometric Indicators of Public Libraries
(Rezekne Higher Education Institution, 2024) Talipova, D.; Ganiyeva, B.; Normatov, S.; Rakhmatullayev, M.; Department of Information and Library Systems
The complexity of modern social communications and the transformation of society's information environment create unique competition among public digital libraries to attract readers. Library websites play an important role in managing the activities of digital libraries and improving their position in the information space. In general, the website is considered the "calling card" of the electronic library. It is not only a means of communication between readers and the library, but also a source of information that allows you to evaluate the activities of the library based on information about the use of library website by readers. The purpose of the study is to develop a data processing method to improve the efficiency of evaluating public library information resources and websites. A method and algorithm for expert assessment of a site using fuzzy logic are proposed. The article presents the possibilities of using web analytics to determine webometric indicators of a library website, study user behavior patterns, as well as analysis that improves the functionality of the site. Libraries are offered a comprehensive method for multi-criteria evaluation of websites. The essence of this method is that with this method we can not only evaluate the website in a traditional way, but also get the following useful results: full evaluation of websites, evaluation of websites according to certain criteria, selective comparison and ranking of websites are presented. An analysis of classification criteria for evaluating public library websites is presented. To minimize subjectivity when evaluating a website, the evaluation process can involve not only experts, but also a wider audience through online and offline surveys. In general, assessment of electronic public library websites is necessary not only to determine the rating of libraries, but also to make the right management decisions, as well as to determine the needs and interests of readers. © 2024 Diyora Talipova, Barno Ganiyeva, Sherbek Normatov, Marat Rakhmatullaev.
Citation Count: 0
Methods of Development the Culture of Reading in Continuous Education
(Rezekne Higher Educ inst-rezeknes Augstskola, 2014) Ganieva, B.; Department of Information and Library Systems
The article includes information about research methods of development the culture of reading in continuous education which is caring out at the Tashkent University of Information Technologies. Also the forms and importance of information presentation and perception in the age of information technologies and recommendations to improve the effectiveness of the educational process in this aspect are given too.
Citation Count: 1
Models of Integration of Information Systems in Higher Education Institutions
(Rezekne Higher Educ inst-rezeknes Augstskola, 2018) Rakhmatullaev, Marat; Karimov, Uktam; Department of Information and Library Systems
At present a lot of automated systems are developing and implementing to support the educational and research processes in the universities. Often these systems duplicate some functions, databases, and also there are problems of compatibility of these systems. The most common educational systems are systems for creating electronic libraries, access to scientific and educational information, a program for detecting plagiarism, testing knowledge, etc. In this article, models and solutions for the integration of such educational automated systems as the information library system (ILS) and the anti-plagiarism system are examined. Integration of systems is based on the compatibility of databases, if more precisely in the metadata of different information models. At the same time, Cloud technologies are used - data processing technology, in which computer resources are provided to the user of the integrated system as an online service. ILS creates e-library of graduation papers and dissertations on the main server. During the creation of the electronic catalog, the communication format MARC21 is used. The database development is distributed for each department. The subsystem of anti-plagiarism analyzes the full-text database for the similarity of texts (dissertations, diploma works and others). Also it identifies the percentage of coincidence, creates the table of statistical information on the coincidence of tests for each author and division, indicating similar fields. The integrated system was developed and tested at the Tashkent University of Information Technologies to work in the corporate mode of various departments (faculties, departments, TUIT branches).
Citation Count: 1
Modification of Decision Rules "Ball Apolonia" the Problem of Classification
(Ieee, 2016) Nishanov, A. X.; Ruzibaev, O. B.; Tran, Nguyen H.; Department of System and Applied Programming
This article is devoted to the study of one of the main tasks of data mining, pattern recognition problem. The problem of classification by the modified decision rules "ball Apollonia". Also, in this paper, an algorithm for solving the modified rule "ball Apollonia", based on the algorithm developed by the software in the language C#. The result is applied to the recognition problem for several well-known set of data.
Citation Count: 4
Networking and Computing in Internet of Things and Cyber-Physical Systems
(Ieee, 2020) Khujamatov, Khalim; Reypnazarov, Ernazar; Khasanov, Doston; Akhmedov, Nurshod; Department of Data Communication Networks and Systems
Article discusses the issue of building the Internet of things and cyber-physical systems networks, as well as data processing in these systems. Initially, a comparative analysis of the concept of the Internet of things and cyber-physical systems were conducted. Then various network construction technologies are provided, including wired and wireless short-range technologies, solutions based on M2M, LPWAN, NB-IoT and 5G, as well as scientific and analytical data on cloud, fog, edge computing methods of data processing in these systems.
Citation Count: 0
Parallel Algorithm for Constructing a Cubic Spline on Multi-Core Processors in a Cluster
(Ieee, 2020) Zaynidinov, Hakimjon; Mallayev, Oybek; Nurmurodov, Javohir; Department of Artificial Intelligence
The article explores the possibility of computing parallel data compression using cubic spline. For example, ways to parallel the process of digital processing of seismic signals have been considered. The main performance indicators of parallel algorithms have been compared with consecutive algorithms. Spline methods are a versatile signal processing tool. It is more accurate than other mathematical methods, information equality is faster, and maintenance costs are much lower. On the other hand, the equipment used in such systems must also meet high performance requirements. To achieve high speeds, parallel algorithms were developed using OpenMP and MPI technologies and implemented in the architecture of multi-core processors. A mathematical method for the parallel calculation of the coefficients of a cubic spline has been developed and a parallel signal processing algorithm has been developed on its basis. As an example, parallelization is a computation during seismic signal processing. The main indicators of efficiency and acceleration of the parallel algorithm were compared with the sequential algorithm. Explained the relevance of the use of parallel numerical systems, described the main approaches to the distribution of processes and methods of data processing, described the principles of parallel programming technology, studied the basic parameters of parallel algorithms for the initial calculation of the numerical value of cubic spline. The parallel algorithm considered for constructing the cubic spline of defect 1 as p - > n leads to the construction of a local cubic spline on each grid interval omega.
Citation Count: 0
Parallel Algorithm for Modeling Temperature Fields Using the Splines Method
(Ieee, 2021) Zaynidinov, Hakimjon; Mallayev, Oybek; Kuchkarov, Muslimjon; Department of Artificial Intelligence
The paper is devoted to the construction of an algorithm for parallelization of temperature field modeling processes based on bicubic spline and the problems that arise in it. It takes a lot of time and memory on a computer to model existing large-scale signals of temperature fields in three-dimensional graphical form. Solving these problems on the basis of the proposed parallel algorithm, the development of parallel algorithms and software tools to qualitatively determine the coordinates of high-temperature hotspots of temperature fields and allow them to be monitored continuously, and to calculate the digital processing of existing large-scale signals of temperature fields. Based on this, the article presents a parallel algorithm for digital processing of signals of temperature fields on the basis of bicubic spline and ways to parallel its computational processes using Open MP technology.
Citation Count: 3
Paralleling of Calculations and Vectorization of Processes in Digital Treatment of Seismic Signals by Cubic Spline
(Iop Publishing Ltd, 2019) Zayniddinov, H. N.; Mallayev, U.; Department of Artificial Intelligence
In this work the possibility of parallelization of calculations when smoothing data using the cubic spline method using examples of seismic signal processing has been researched. The main indicators of efficiency and acceleration of parallel and sequential algorithms were calculated.

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