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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: 4
Algorithms and Service for Digital Processing of Two-Dimensional Geophysical Fields Using Octave Method
(Springer international Publishing Ag, 2022) Zaynidinov, H. N.; Singh, Dhananjay; Yusupov, I; Makhmudjanov, S. U.; Department of Artificial Intelligence
This paper covers new algorithms for digital signal processing of two-dimensional geophysical fields using octave method, which predicts the mineral value of the field in terms of signal energy value. In addition, it addresses and shows a functional scheme of the platform service based on cloud technologies. The essence of the work is that the geophysical data are two-dimensional, so their volume is very large. This requires the use of fast algorithms for digital processing of large amounts of data. Therefore, if we use the octave method effectively, the required result is obtained by calculating the value of the signal energy and comparing the finite difference of these values with its previous value.
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: 0
Application of Daubechies Wavelets in Digital Processing of Biomedical Signals and Images
(Springer Science and Business Media Deutschland GmbH, 2024) Zaynidinov, H.; Juraev, U.; Tishlikov, S.; Modullayev, J.; Department of Artificial Intelligence
Wavelet analysis of one-dimensional signals has proven effective in deciphering the electrocardiogram (ECG). Promising results have already been obtained from their analysis. In particular, it has been shown that anomalous effects in the ECG are mainly manifested on much larger scales (low frequencies), while normal structures are characterized by relatively small scales (high frequencies). Denoising is one of the urgent problems of digital processing of biomedical signals and tomographic images. Wavelet methods are relatively new and are a method of denoising using wavelet functions. Wavelets allow for the analysis of various types of signals and effective noise removal, so it is of particular interest to study their potential to improve image quality. It is very convenient to use DWT (Discrete Wavelet Transform) in digital image processing, because it provides deep insight into the main spatial and frequency features. Wavelets provide excellent time-frequency localization, meaning they can capture both transient and stationary features in signals and images. This localization capability is especially valuable in medical applications where signals may contain abrupt changes or irregular patterns. In this paper, we will discuss the method of biomedical signal restoration and denoising in tomographic images using different wavelet functions such as Haar wavelet, Symlet, Meyer wavelet, Daubechies wavelet. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
Citation Count: 3
B-Spline Approximation for Polynomial Splines
(Springer international Publishing Ag, 2019) Singh, Dhananjay; Singh, Madhusudan; Hakimjon, Zaynidinov; Department of Artificial Intelligence
[No Abstract Available]
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: 0
Digital Processing of Blood Image by Applying Two-Dimensional Haar Wavelets
(Springer international Publishing Ag, 2021) Zaynidinov, H. N.; Yusupov, I; Juraev, J. U.; Singh, Dhananjay; Department of Artificial Intelligence
In this work, compression and zero coefficients have been determined by using digital processing of the blood image that is 1 mu l (approximately one drop of blood) in the Haar wavelet. Also using this amount, an algorithm is proposed to define the number of leukocytes in human blood. We know that there are currently two types of methods for determining the number of leukocytes: grease and counting by using a microscope. This is a loss of time, causes a number of errors and inconveniences. By using this algorithm, a program has been developed to calculate the number of leukocytes with high accuracy in a blood image of 1 mu l (about one drop of blood).
Citation Count: 3
Evaluation Methods of Spline
(Springer international Publishing Ag, 2019) Singh, Dhananjay; Singh, Madhusudan; Hakimjon, Zaynidinov; Department of Artificial Intelligence
[No Abstract Available]
Citation Count: 0
Experience in Evaluating Legal Scientific Information
(American Institute of Physics, 2024) Normatov, S.; Rakhmatullaev, M.; Urinkulov, O.; Khalmuratov, O.; Department of Information and Library Systems
It is known that scientific information resources in the legal field are an important source of information in the training of qualified personnel in this field, the development of scientific research, and the regulation of relations in the field of law. Despite this, a large number of scientific information resources in the legal field makes the issue of finding the most necessary sources of legal information in certain legal situations very relevant. It is necessary to take into account not only the relevance of information, but also its classical characteristics, such as relevance, accuracy, completeness, and ease of use. This creates the need to evaluate sources of scientific information in the legal field. The purpose of this article is to develop a method for classifying and evaluating sources of scientific information in the legal field. The issue of evaluating information sources related to science and education is one of the important foundations of intelligent information retrieval to improve the efficiency of providing users with the necessary quality literature. © 2024 American Institute of Physics Inc.. All rights reserved.
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: 2
Geophysical Application for Splines
(Springer international Publishing Ag, 2019) Singh, Dhananjay; Singh, Madhusudan; Hakimjon, Zaynidinov; Department of Artificial Intelligence
[No Abstract Available]
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: 3
Iot-Enabled Mobile Device for Electrogastrography Signal Processing
(Springer international Publishing Ag, 2021) Zaynidinov, Hakimjon; Makhmudjanov, Sarvar; Rajabov, Farkhad; Singh, Dhananjay; Department of Artificial Intelligence
Electrogastrography (EGG) is a powerful instrument that represents and provides high time precision for direct heart activities. After processing the chest skin for the contact process by network electrodes, the conventional method of collecting heart signals involves the presence of electrodes directly connected to the patient's chest using gelatin. One of the most critical activities is tracking the clinical signs of cardiac patients. A real-time EGG signal acquisition and processing device is developed to observe patients in various IoT-based environments is discussed in this article. The EGG signals that are detected are passed to special software. For further protection, it is ensured that the transmission of the EGG signal from the patient without distortion to the doctors should take place. The ambulatory and wearable device for the transmission of real-time EGG signals is discussed in this article in order to monitor patients in various environments. For further analysis, the captured EGG signal is transferred to software and signals are transferred to the doctors for real-time evaluation of the patient.
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.

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