Web of Science

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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: 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: 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: 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
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: 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: 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
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: 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: 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: 4
Methods for Determining the Optimal Sampling Step of Signals in the Process of Device and Computer Integration
(Springer international Publishing Ag, 2022) Zaynidinov, Hakimjon; Singh, Dhananjay; Makhmudjanov, Sarvar; Yusupov, Ibrohimbek; Department of Artificial Intelligence
In this paper, digital signal processing methods and its solution for HCI were described. Mostly, problems are connected to taking signals or data from real time devices. Data is often serial, stream or etc. device and computer integration in HCI focuses to digital signal processing. Today, the use of interpolation methods in the digital processing of biomedical signals is important, and at the same time allows the detection and diagnosis of diseases as a result of digital processing of biomedical signals. This paper discusses the construction of a signal model using the spline-wavelet interpolation formula for equal intervals in the digital processing of biomedical signals.
Citation Count: 0
Research of Needs in Digital Scientific and Educational Resources in Universities
(Rezekne Higher Educ inst-rezeknes Augstskola, 2020) Rakhmatullaev, Marat; Department of Information and Library Systems
Currently, without the effective information support of scientific research and the educational process, the innovative development of higher education isn't possible. But the databases of leading publishers such as Springer Nature, Wiley, Elsevier, Oxford University Press and others are very expensive for universities in developing countries and countries with economies in transition. It is necessary to conduct researches to analyze the demand for digital information resources of publishers to determine the most popular sources for each university. The article is devoted to the results of research on the demand for electronic scientific and educational resources in 63 universities of Uzbekistan, as well as their impact on publication activity. Interviewed more than 1200 respondents from among doctoral students, applicants for academic degrees, teachers and researchers. Based on the results of the survey, the most frequently used sources of information for scientific research, problems they face when writing scientific articles, and information resources they often use are identified. Such researches were conducted in the republic for the first time. The results of the survey made it possible to get a clear picture of the state of information support of universities, to develop recommendations to improve of acquisition funds of academic libraries, on organizing and conducting thematic trainings for doctoral students, teachers, and researchers.
Citation Count: 26
Emerging Trends and Evolutions for Smart City Healthcare Systems
(Elsevier, 2022) Bin Ahmad, Khairol Amali; Khujamatov, Halim; Akhmedov, Nurshod; Bajuri, Mohd Yazid; Ahmad, Mohammad Nazir; Ahmadian, Ali; Department of Data Communication Networks and Systems
rapid development of the industry affected all its branches, led to evolution, and influenced people's worldview and desires. The revolutionary changes also affected the healthcare system, contributing to its development in technological, socio economic, scientific, and physical terms. Healthcare has gone through several stages called Healthcare 1.0, Healthcare 2.0, Healthcare 3.0, and Healthcare 4.0. Each of these stages is a logical chain of one whole progress, resulting in solving open challenges and previous problems. Each stage has its advantages, disadvantages, distinctive features, methods of providing medical care, scientific and technical innovations, where the research of which is mandatory for understanding the system as a whole, identifying trends, and developing future directions. This paper is devoted to a systematic analysis of the evolutionary development of healthcare, identifying the causes, means, and influence on subsequent processes. The chronology of the methods is revealed. Each stage of development is analyzed in terms of social significance, scientific and technological significance, communications, and application of information technologies, which makes this paper unique in this area. The studies were carried out with an emphasis on the technical component of the system, particularly the application of network technologies and services, the issues of the introduction of emerging technologies.
Citation Count: 0
Fog Computing Capabilities for Big Data Provisioning: Visualization Scenario
(Mdpi, 2022) Khujamatov, Halimjon; Ahmad, Khaleel; Usmanova, Nargiza; Khoshimov, Jamshid; Alduailij, Mai; Alduailij, Mona; Department of Data Communication Networks and Systems
With the development of Internet technologies, huge amounts of data are collected from various sources, and used 'anytime, anywhere' to enrich and change the life of the whole of society, attract ways to do business, and better perceive people's lives. Those datasets, called 'big data', need to be processed, stored, or retrieved, and special tools were developed to analyze this big data. At the same time, the ever-increasing development of the Internet of Things (IoT) requires IoT devices to be mobile, with adequate data processing performance. The new fog computing paradigm makes computing resources more accessible, and provides a flexible environment that will be widely used in next-generation networks, vehicles, etc., demonstrating enhanced capabilities and optimizing resources. This paper is devoted to analyzing fog computing capabilities for big data provisioning, while considering this technology's different architectural and functional aspects. The analysis includes exploring the protocols suitable for fog computing by implementing an experimental fog computing network and assessing its capabilities for providing big data, originating from both a real-time stream and batch data, with appropriate visualization of big data processing.
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: 2
Clustered Routing Using Chaotic Genetic Algorithm With Grey Wolf Optimization To Enhance Energy Efficiency in Sensor Networks
(Mdpi, 2024) Khujamatov, Halimjon; Pitchai, Mohaideen; Shamsiev, Alibek; Mukhamadiyev, Abdinabi; Cho, Jinsoo; Department of Data Communication Networks and Systems
As an alternative to flat architectures, clustering architectures are designed to minimize the total energy consumption of sensor networks. Nonetheless, sensor nodes experience increased energy consumption during data transmission, leading to a rapid depletion of energy levels as data are routed towards the base station. Although numerous strategies have been developed to address these challenges and enhance the energy efficiency of networks, the formulation of a clustering-based routing algorithm that achieves both high energy efficiency and increased packet transmission rate for large-scale sensor networks remains an NP-hard problem. Accordingly, the proposed work formulated an energy-efficient clustering mechanism using a chaotic genetic algorithm, and subsequently developed an energy-saving routing system using a bio-inspired grey wolf optimizer algorithm. The proposed chaotic genetic algorithm-grey wolf optimization (CGA-GWO) method is designed to minimize overall energy consumption by selecting energy-aware cluster heads and creating an optimal routing path to reach the base station. The simulation results demonstrate the enhanced functionality of the proposed system when associated with three more relevant systems, considering metrics such as the number of live nodes, average remaining energy level, packet delivery ratio, and overhead associated with cluster formation and routing.
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: 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.
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: 0
Virtual Digital Libraries for Professional Education
(Rezekne Higher Educ inst-rezeknes Augstskola, 2015) Rakhmatullaev, Marat; Department of Information and Library Systems
The article is devoted actual problems of support of the system of professional education on the basis of development corporate network and virtual libraries of colleges. Some important results of applied researches on creation of the corporate network of Uzbekistan libraries are given. The information about the basic information sources (databases, multimedia encyclopedias and characteristics of other resources) actively used in educational process and virtual libraries are included too.

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