Alem Čolaković | University of Sarajevo (original) (raw)

Papers by Alem Čolaković

Acta Facultatis Medicae Naissensis, 2023

Introduction: Machine learning (ML) plays a significant role in the fight against the COVID-19 (o... more Introduction: Machine learning (ML) plays a significant role in the fight against the COVID-19 (officially known as SARS-CoV-2) pandemic. ML techniques enable the rapid detection of patterns and trends in large datasets. Therefore, ML provides efficient methods to generate knowledge from structured and unstructured data. This potential is particularly significant when the pandemic affects all aspects of human life. It is necessary to collect a large amount of data to identify methods to prevent the spread of infection, early detection, reduction of consequences, and finding appropriate medicine. Modern information and communication technologies (ICT) such as the Internet of Things (IoT) allow the collection of large amounts of data from various sources. Thus, we can create predictive ML-based models for assessments, predictions, and decisions. Methods: This is a review article based on previous studies and scientifically proven knowledge. In this paper, bibliometric data from authoritative databases of research publications (Web of Science, Scopus, PubMed) are combined for bibliometric analyses in the context of ML applications for COVID-19. Aim: This paper reviews some ML-based applications used for mitigating COVID-19. We aimed to identify and review ML potentials and solutions for mitigating the COVID-19 pandemic as well as to present some of the most commonly used ML techniques, algorithms, and datasets applied in the context of COVID-19. Also, we provided some insights into specific emerging ideas and open issues to facilitate future research. Conclusion: ML is an effective tool for diagnosing and early detection of symptoms, predicting the spread of a pandemic, developing medicines and vaccines, etc.

Lecture notes in networks and systems, Oct 16, 2022

International Conference on Advances in Traffic and Communication Technologies (ATCT), 2022

Urban mobility is one of the most significant factors in the successful development and sustainab... more Urban mobility is one of the most significant factors in the successful development and sustainable future of large cities. The increasing demand for fast, safe, and eco-friendly transportation services is a trend in modern society. These requirements pose the challenge of finding corresponding solutions for efficient mobility of people in urban areas. However, many problems are caused by the increased traffic in cities, leading to high congestion, negative impacts on the environment, rising security challenges, etc. Therefore, the research community and other stakeholders have increased their focus on finding solutions for these issues. The Internet of Things (IoT) has enabled the development of efficient and cost-effective solutions to enhance urban mobility. Enabling IoT technologies has become a significant driver for smart mobility concept development. The continuous development of IoT has led to various applications focused on urban mobility improvement. This paper presents some IoT possibilities and potentials for developing solutions for smart urban mobility.

Science, Engineering and Technology

Software process improvement implies a set of complex and systematic activities of software engin... more Software process improvement implies a set of complex and systematic activities of software engineering. It requires theory and models established in management, technical and social sciences. The improvement is based on the assumption that the organization if it owns mature and capable processes, would be able to deliver quality software on time and in line with predicted costs. The maturity models are initially aimed for implementation in enterprise software organizations, government organizations and within the military industry. Their complexity and the size make them difficult to use in small software organizations and companies. In such organizations the interest for use and the efforts to make an efficient and effective organization is always presented, though. In this paper, the basic and derived capability maturity models are described and cases from their implementation are analyzed, along with assessment of results of such projects in business practices. The problem of th...

Suvremeni Promet Modern Traffic, Feb 1, 2014

The application of information and communication technologies (ICT) is becoming an indispensable ... more The application of information and communication technologies (ICT) is becoming an indispensable factor in optimizing transport processes. There is the need for monitoring of shipments during the transport process as an indispensable element of the management and control of transport of postal consignments. For this purpose they use different technologies, and this paper presents the role and capabilities of GPS (Global Positioning System) and RFID (radio-frequency identification) technologies. The work was carried out to show the possibilities for global positioning system (GPS) and radio frequency identification of (RFID) in the organization and rationalization of transport of postal items in Bosnia & Hercegovina.

2014 X International Symposium on Telecommunications (BIHTEL), 2014

This paper discusses a concept of predicting interactions between measurable (technical) paramete... more This paper discusses a concept of predicting interactions between measurable (technical) parameters of telecommunications network - QoS (Quality of Service) and QoE (Quality of Experience) of the video under realistic triple play network conditions using IPTV (Internet Protocol TV). Here is represented a simulation method using OPNET as simulation tool that includes a complete scenario of IPTV channels distribution in the hypothetical IP / MPLS network. Based on simulation results of the QoS parameters in the network and using of certain well-known regression analysis of QoS/QoE correlation model it is possible to evaluate the quality of the received video perceived by the user. It performs the mapping between quality assessment VQR (Video Quality Ratings), VQM (Video Quality Metric) and DMOS (Difference Mean Opinion Score) subjective rating scales. In that way it performs validation of IPTV service in terms of comparing the original video and the received video by the end user. The aim of this paper is to demonstrate the possibility of video quality validation under laboratory conditions using simulation method.

Science, Engineering and Technology, 2021

New technologies primarily affect the lives of all people, their habits, needs, desires, but also... more New technologies primarily affect the lives of all people, their habits, needs, desires, but also significantly affect the demands placed on various business sectors. Discussions on the increasingly rapid development of technical-technological solutions that can be applied in the postal sector and logistics have a long history. New technologies in all areas bring a constant change in the relationship between companies and their customers, which significantly affect the quality of work and activities. In the years to come, it will be an increasing challenge for postal operators around the world, as well as for other companies, to achieve substantive communication and understanding of their customers through the application of innovative technologies. Understanding and learning about customer issues is key to offering them services that, with their precise targeting of stakeholders, quality, visibility, efficiency, and, perhaps most importantly, flexibility, will be able to meet needs...

Measurement of customer sastisfaction is an efficient tool to detect problems in SP (Services Pro... more Measurement of customer sastisfaction is an efficient tool to detect problems in SP (Services Provider) and their relationship with customers. Based on this measurement a relationship between customer satisfaction and loyalty can be established. It can determine the influence of key parameters on the number of users of services. The parameters of customer satisfaction and loyalty are numerous and depend on the network (network quality of services parameters), the client (the perception, expectations, beliefs, etc.), employees (implementation of activities), technological developments, organizational structure, etc. This paper aims to show the way to identify key indicators and their weighted factors that affect customer satisfaction. This paper intends to emphasize relationship between quality of services, customer perception and loyalty and to present a model for examining the key parameters that significantly influence customer satisfaction and how these parameters influence custo...

Science, Engineering and Technology , 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of the most widely used wireless communication technologies used for IoT applications.

Science, Engineering and Technology, 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of th...

TEM Journal, 2021

The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st centur... more The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st century worldwide. Efforts to fight this pandemic require a global co-operation and a multidisciplinary approach. An application of information and communication technologies (ICT) to a great degree contributes to fighting the pandemic as these technologies are one of the key services that assist patients, researchers, health institutions and other interested parties in different activities in an effort to fight the pandemic and its consequences. The present paper presents the features of certain mobile applications (apps) that are being used for different purposes such as: tracking patients, COVID-19-related warnings, keeping tracks of statistical data, organising life and business, etc. Aside from presenting the features of a certain number of applications, a review of technologies used for the development of these applications will also be presented. Furthermore, the paper addresses certain...

In the present paper we study some metric properties and dispersive effects of weakly mixing (WM)... more In the present paper we study some metric properties and dispersive effects of weakly mixing (WM) measure-preserving transformations on general metric spaces endowed with a probability measure; in particular, we investigate connections of WM discrete time dynamical systems with the theory of probabilistic metric spaces. Further, continuing the work begun by B. Schweizer and A. Sklar [Z. Wahrsch. Verw. Geb. 26 (1973), 235 -239], in [Huse Fatkić, Slobodan Sekulović, and Hana Fatkić, Probabilistic metric spaces determined by weakly mixing transformations, Proceedings of the 2nd Mathematical Conference of Republic of Srpska – Section of Applied Mathematics (2012), 195 -208] is proven that if (S, d) is a separable metric space endowed with a probability measure P and if T is a transformation on S that is weakly mixing with respect to P, then for any x > 0 and almost all pairs of points (p,q) in S2, there is a distribution function F such that the average number of times in first (n -1...

New Technologies, Development and Application III, 2020

Warehouses are premises used to store goods or products with the key task of ensuring its securit... more Warehouses are premises used to store goods or products with the key task of ensuring its security as well as maintaining its value and quality. Some unexpected events in the warehouse such as temperature fluctuations and humidity changes, and other unwanted events may destroy the value of goods and products.In such circumstances, continuous monitoring of the warehouse and condition control should be carried out. Internet of Things (IoT) enables the development of various cost-effective solutions based on modern Information and Communication Technologies (ICT) and infrastructure. IoT brings new opportunities and benefits for the development of Warehouse Management Systems (WMS). This paper put in light some possibilities of IoT applications for a smart warehouse monitoring system. We present a model of IoT system that helps to overcome some shortcomings in existing solutions for warehouse monitoring control.

Science, Engineering and Technology

Routing in multidomain and multilayer networks is the subject of constant theoretical research, w... more Routing in multidomain and multilayer networks is the subject of constant theoretical research, with special emphasis on routing optimization algorithms based on several criteria. Such research results in new proposals. The basic task of the algorithm is to perform the given task in a finite and reasonable period of time and with reasonable resource requirements. When new solutions are compared with previous solutions, it is necessary to consider as much information as possible about the characteristics and differences between these algorithms, which ultimately determines the degree of success of the algorithm. Routing algorithms depend on the goals to be achieved and most often solve a certain group of problems with certain simplifications of the overall problem and to the detriment of performance that are not crucial for a given routing optimization problem. Therefore, it is necessary to have acceptable methods for efficiency-complexity evaluation methods of routing algorithms wit...

Science, Engineering and Technology

A large number of researchers found their interest in addressing the issue of capacity scaling fo... more A large number of researchers found their interest in addressing the issue of capacity scaling for wireless ad hoc networks. This paper aims to provide a comprehensive overview of the development of capacity scaling laws in wireless networks, highlighting the problem of scaling as one of the basic challenges in their research. The review began with the definition of the notion of bandwidth of random networks, which were taken as a reference model of consideration when determining more advanced strategies for improving throughput capacity. Based on these strategies, other factors that have an impact on capacity scaling laws have been identified and elaborated. Finally, the capacity of hybrid wireless networks, ie networks in which at least two types of nodes functionally exist (ad hoc nodes/infrastructure nodes / auxiliary nodes), was partially investigated.

TEM Journal

The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st centur... more The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st century worldwide. Efforts to fight this pandemic require a global co-operation and a multidisciplinary approach. An application of information and communication technologies (ICT) to a great degree contributes to fighting the pandemic as these technologies are one of the key services that assist patients, researchers, health institutions and other interested parties in different activities in an effort to fight the pandemic and its consequences. The present paper presents the features of certain mobile applications (apps) that are being used for different purposes such as: tracking patients, COVID-19-related warnings, keeping tracks of statistical data, organising life and business, etc. Aside from presenting the features of a certain number of applications, a review of technologies used for the development of these applications will also be presented. Furthermore, the paper addresses certain...

Computer Networks

IoT (Internet of Things) is a new paradigm which provides a set of new services for the next wave... more IoT (Internet of Things) is a new paradigm which provides a set of new services for the next wave of technological innovations. IoT applications are nearly limitless while enabling seamless integration of the cyber-world with the physical world. However, despite the enormous efforts of standardization bodies, alliances, industries, researchers and others, there are still numerous problems to deal with in order to reach the full potential of IoT. These issues should be considered from various aspects such as enabling technologies, applications, business models, social and environmental impacts. In focus of this paper are open issues and challenges considered from the technological perspective. Just for clarification, we put in light different visions that stand behind this paradigm in order to facilitate a better understanding of the IoT's features. Furthermore, this exhaustive survey provides insights into the state-of-the-art of IoT enabling and emerging technologies. The most relevant among them are addressed with some details. The main scope is to deliver a comprehensive overview of open issues and challenges to be tackled by future research. We provide some insights into specific emerging ideas in order to facilitate future research. Also, this paper brings order in the existing literature by classifying contributions according to different research topics.

SCIENCE, ENGINEERING AND TECHNOLOGY, Apr 30, 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of the most widely used wireless communication technologies used for IoT applications.

International Conference “New Technologies, Development and Applications”, 2020

Warehouses are premises used to store goods or products with the key task of ensuring its securit... more Warehouses are premises used to store goods or products with the key task of ensuring its security as well as maintaining its value and quality. Some unexpected events in the warehouse such as temperature fluctuations and humidity changes, and other unwanted events may destroy the value of goods and products.In such circumstances, continuous monitoring of the warehouse and condition control should be carried out. Internet of Things (IoT) enables the development of various cost-effective solutions based on modern Information and Communication Technologies (ICT) and infrastructure. IoT brings new opportunities and benefits for the development of Warehouse Management Systems (WMS). This paper put in light some possibilities of IoT applications for a smart warehouse monitoring system. We present a model of IoT system that helps to overcome some shortcomings in existing solutions for warehouse monitoring control.

7th International Maritime Science Conference (IMSC), 2017

E-learning is a computer based educational tool or system that enables possibility to learn anywh... more E-learning is a computer based educational tool or system that enables possibility to learn anywhere and anytime. Technology has
advanced so much that the geographical gap is bridged with the use of tools that make you feel as if you are inside the classroom. Elearning offers the ability to share material in all kinds of formats such as videos (eg. mp4, .flv, mpeg, avi), slideshows (eg. .ppt,
.pptx), word (doc, docx), Portable Document Format (.pdf), etc. These days learners are well versed in the use of smart phones, text
messaging and using the internet which made using and running an online course to become a simple affair. E-Learning, in
comparison with traditional learning, significantly reduces the time needed to locate information. It also offers access to online
resources, databases, periodicals, journals and other materials you wouldn't normally have access from a library. The main objective of
e-learning modules for transport is to create knowledge that will be available to stakeholders regardless of geographic distance. Using
e-learning platforms in transport systems can help in the analysis of transport processes, improvement and optimization of transport
processes, shaping an holistic approaches to protect the environment, development in strategic plans regarding sustainable mobility
solutions, etc. E-learning platforms in transport can help adapt to the curricula in high schools and universities in order to acquire
theoretical and practical knowledge and skills for employment in the transport companies.

Acta Facultatis Medicae Naissensis, 2023

Introduction: Machine learning (ML) plays a significant role in the fight against the COVID-19 (o... more Introduction: Machine learning (ML) plays a significant role in the fight against the COVID-19 (officially known as SARS-CoV-2) pandemic. ML techniques enable the rapid detection of patterns and trends in large datasets. Therefore, ML provides efficient methods to generate knowledge from structured and unstructured data. This potential is particularly significant when the pandemic affects all aspects of human life. It is necessary to collect a large amount of data to identify methods to prevent the spread of infection, early detection, reduction of consequences, and finding appropriate medicine. Modern information and communication technologies (ICT) such as the Internet of Things (IoT) allow the collection of large amounts of data from various sources. Thus, we can create predictive ML-based models for assessments, predictions, and decisions. Methods: This is a review article based on previous studies and scientifically proven knowledge. In this paper, bibliometric data from authoritative databases of research publications (Web of Science, Scopus, PubMed) are combined for bibliometric analyses in the context of ML applications for COVID-19. Aim: This paper reviews some ML-based applications used for mitigating COVID-19. We aimed to identify and review ML potentials and solutions for mitigating the COVID-19 pandemic as well as to present some of the most commonly used ML techniques, algorithms, and datasets applied in the context of COVID-19. Also, we provided some insights into specific emerging ideas and open issues to facilitate future research. Conclusion: ML is an effective tool for diagnosing and early detection of symptoms, predicting the spread of a pandemic, developing medicines and vaccines, etc.

Lecture notes in networks and systems, Oct 16, 2022

International Conference on Advances in Traffic and Communication Technologies (ATCT), 2022

Urban mobility is one of the most significant factors in the successful development and sustainab... more Urban mobility is one of the most significant factors in the successful development and sustainable future of large cities. The increasing demand for fast, safe, and eco-friendly transportation services is a trend in modern society. These requirements pose the challenge of finding corresponding solutions for efficient mobility of people in urban areas. However, many problems are caused by the increased traffic in cities, leading to high congestion, negative impacts on the environment, rising security challenges, etc. Therefore, the research community and other stakeholders have increased their focus on finding solutions for these issues. The Internet of Things (IoT) has enabled the development of efficient and cost-effective solutions to enhance urban mobility. Enabling IoT technologies has become a significant driver for smart mobility concept development. The continuous development of IoT has led to various applications focused on urban mobility improvement. This paper presents some IoT possibilities and potentials for developing solutions for smart urban mobility.

Science, Engineering and Technology

Software process improvement implies a set of complex and systematic activities of software engin... more Software process improvement implies a set of complex and systematic activities of software engineering. It requires theory and models established in management, technical and social sciences. The improvement is based on the assumption that the organization if it owns mature and capable processes, would be able to deliver quality software on time and in line with predicted costs. The maturity models are initially aimed for implementation in enterprise software organizations, government organizations and within the military industry. Their complexity and the size make them difficult to use in small software organizations and companies. In such organizations the interest for use and the efforts to make an efficient and effective organization is always presented, though. In this paper, the basic and derived capability maturity models are described and cases from their implementation are analyzed, along with assessment of results of such projects in business practices. The problem of th...

Suvremeni Promet Modern Traffic, Feb 1, 2014

The application of information and communication technologies (ICT) is becoming an indispensable ... more The application of information and communication technologies (ICT) is becoming an indispensable factor in optimizing transport processes. There is the need for monitoring of shipments during the transport process as an indispensable element of the management and control of transport of postal consignments. For this purpose they use different technologies, and this paper presents the role and capabilities of GPS (Global Positioning System) and RFID (radio-frequency identification) technologies. The work was carried out to show the possibilities for global positioning system (GPS) and radio frequency identification of (RFID) in the organization and rationalization of transport of postal items in Bosnia & Hercegovina.

2014 X International Symposium on Telecommunications (BIHTEL), 2014

This paper discusses a concept of predicting interactions between measurable (technical) paramete... more This paper discusses a concept of predicting interactions between measurable (technical) parameters of telecommunications network - QoS (Quality of Service) and QoE (Quality of Experience) of the video under realistic triple play network conditions using IPTV (Internet Protocol TV). Here is represented a simulation method using OPNET as simulation tool that includes a complete scenario of IPTV channels distribution in the hypothetical IP / MPLS network. Based on simulation results of the QoS parameters in the network and using of certain well-known regression analysis of QoS/QoE correlation model it is possible to evaluate the quality of the received video perceived by the user. It performs the mapping between quality assessment VQR (Video Quality Ratings), VQM (Video Quality Metric) and DMOS (Difference Mean Opinion Score) subjective rating scales. In that way it performs validation of IPTV service in terms of comparing the original video and the received video by the end user. The aim of this paper is to demonstrate the possibility of video quality validation under laboratory conditions using simulation method.

Science, Engineering and Technology, 2021

New technologies primarily affect the lives of all people, their habits, needs, desires, but also... more New technologies primarily affect the lives of all people, their habits, needs, desires, but also significantly affect the demands placed on various business sectors. Discussions on the increasingly rapid development of technical-technological solutions that can be applied in the postal sector and logistics have a long history. New technologies in all areas bring a constant change in the relationship between companies and their customers, which significantly affect the quality of work and activities. In the years to come, it will be an increasing challenge for postal operators around the world, as well as for other companies, to achieve substantive communication and understanding of their customers through the application of innovative technologies. Understanding and learning about customer issues is key to offering them services that, with their precise targeting of stakeholders, quality, visibility, efficiency, and, perhaps most importantly, flexibility, will be able to meet needs...

Measurement of customer sastisfaction is an efficient tool to detect problems in SP (Services Pro... more Measurement of customer sastisfaction is an efficient tool to detect problems in SP (Services Provider) and their relationship with customers. Based on this measurement a relationship between customer satisfaction and loyalty can be established. It can determine the influence of key parameters on the number of users of services. The parameters of customer satisfaction and loyalty are numerous and depend on the network (network quality of services parameters), the client (the perception, expectations, beliefs, etc.), employees (implementation of activities), technological developments, organizational structure, etc. This paper aims to show the way to identify key indicators and their weighted factors that affect customer satisfaction. This paper intends to emphasize relationship between quality of services, customer perception and loyalty and to present a model for examining the key parameters that significantly influence customer satisfaction and how these parameters influence custo...

Science, Engineering and Technology , 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of the most widely used wireless communication technologies used for IoT applications.

Science, Engineering and Technology, 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of th...

TEM Journal, 2021

The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st centur... more The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st century worldwide. Efforts to fight this pandemic require a global co-operation and a multidisciplinary approach. An application of information and communication technologies (ICT) to a great degree contributes to fighting the pandemic as these technologies are one of the key services that assist patients, researchers, health institutions and other interested parties in different activities in an effort to fight the pandemic and its consequences. The present paper presents the features of certain mobile applications (apps) that are being used for different purposes such as: tracking patients, COVID-19-related warnings, keeping tracks of statistical data, organising life and business, etc. Aside from presenting the features of a certain number of applications, a review of technologies used for the development of these applications will also be presented. Furthermore, the paper addresses certain...

In the present paper we study some metric properties and dispersive effects of weakly mixing (WM)... more In the present paper we study some metric properties and dispersive effects of weakly mixing (WM) measure-preserving transformations on general metric spaces endowed with a probability measure; in particular, we investigate connections of WM discrete time dynamical systems with the theory of probabilistic metric spaces. Further, continuing the work begun by B. Schweizer and A. Sklar [Z. Wahrsch. Verw. Geb. 26 (1973), 235 -239], in [Huse Fatkić, Slobodan Sekulović, and Hana Fatkić, Probabilistic metric spaces determined by weakly mixing transformations, Proceedings of the 2nd Mathematical Conference of Republic of Srpska – Section of Applied Mathematics (2012), 195 -208] is proven that if (S, d) is a separable metric space endowed with a probability measure P and if T is a transformation on S that is weakly mixing with respect to P, then for any x > 0 and almost all pairs of points (p,q) in S2, there is a distribution function F such that the average number of times in first (n -1...

New Technologies, Development and Application III, 2020

Warehouses are premises used to store goods or products with the key task of ensuring its securit... more Warehouses are premises used to store goods or products with the key task of ensuring its security as well as maintaining its value and quality. Some unexpected events in the warehouse such as temperature fluctuations and humidity changes, and other unwanted events may destroy the value of goods and products.In such circumstances, continuous monitoring of the warehouse and condition control should be carried out. Internet of Things (IoT) enables the development of various cost-effective solutions based on modern Information and Communication Technologies (ICT) and infrastructure. IoT brings new opportunities and benefits for the development of Warehouse Management Systems (WMS). This paper put in light some possibilities of IoT applications for a smart warehouse monitoring system. We present a model of IoT system that helps to overcome some shortcomings in existing solutions for warehouse monitoring control.

Science, Engineering and Technology

Routing in multidomain and multilayer networks is the subject of constant theoretical research, w... more Routing in multidomain and multilayer networks is the subject of constant theoretical research, with special emphasis on routing optimization algorithms based on several criteria. Such research results in new proposals. The basic task of the algorithm is to perform the given task in a finite and reasonable period of time and with reasonable resource requirements. When new solutions are compared with previous solutions, it is necessary to consider as much information as possible about the characteristics and differences between these algorithms, which ultimately determines the degree of success of the algorithm. Routing algorithms depend on the goals to be achieved and most often solve a certain group of problems with certain simplifications of the overall problem and to the detriment of performance that are not crucial for a given routing optimization problem. Therefore, it is necessary to have acceptable methods for efficiency-complexity evaluation methods of routing algorithms wit...

Science, Engineering and Technology

A large number of researchers found their interest in addressing the issue of capacity scaling fo... more A large number of researchers found their interest in addressing the issue of capacity scaling for wireless ad hoc networks. This paper aims to provide a comprehensive overview of the development of capacity scaling laws in wireless networks, highlighting the problem of scaling as one of the basic challenges in their research. The review began with the definition of the notion of bandwidth of random networks, which were taken as a reference model of consideration when determining more advanced strategies for improving throughput capacity. Based on these strategies, other factors that have an impact on capacity scaling laws have been identified and elaborated. Finally, the capacity of hybrid wireless networks, ie networks in which at least two types of nodes functionally exist (ad hoc nodes/infrastructure nodes / auxiliary nodes), was partially investigated.

TEM Journal

The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st centur... more The SARS-CoV-2 (COVID-19) pandemic has emerged as one of the greatest problems of the 21st century worldwide. Efforts to fight this pandemic require a global co-operation and a multidisciplinary approach. An application of information and communication technologies (ICT) to a great degree contributes to fighting the pandemic as these technologies are one of the key services that assist patients, researchers, health institutions and other interested parties in different activities in an effort to fight the pandemic and its consequences. The present paper presents the features of certain mobile applications (apps) that are being used for different purposes such as: tracking patients, COVID-19-related warnings, keeping tracks of statistical data, organising life and business, etc. Aside from presenting the features of a certain number of applications, a review of technologies used for the development of these applications will also be presented. Furthermore, the paper addresses certain...

Computer Networks

IoT (Internet of Things) is a new paradigm which provides a set of new services for the next wave... more IoT (Internet of Things) is a new paradigm which provides a set of new services for the next wave of technological innovations. IoT applications are nearly limitless while enabling seamless integration of the cyber-world with the physical world. However, despite the enormous efforts of standardization bodies, alliances, industries, researchers and others, there are still numerous problems to deal with in order to reach the full potential of IoT. These issues should be considered from various aspects such as enabling technologies, applications, business models, social and environmental impacts. In focus of this paper are open issues and challenges considered from the technological perspective. Just for clarification, we put in light different visions that stand behind this paradigm in order to facilitate a better understanding of the IoT's features. Furthermore, this exhaustive survey provides insights into the state-of-the-art of IoT enabling and emerging technologies. The most relevant among them are addressed with some details. The main scope is to deliver a comprehensive overview of open issues and challenges to be tackled by future research. We provide some insights into specific emerging ideas in order to facilitate future research. Also, this paper brings order in the existing literature by classifying contributions according to different research topics.

SCIENCE, ENGINEERING AND TECHNOLOGY, Apr 30, 2021

Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identif... more Internet of Things (IoT) is the inter-networking paradigm based on many processes such as identifying, sensing, networking and computation. An IoT technology stack provides seamless connectivity between various physical and virtual objects. The increasing number of IoT applications leads to the issue of transmitting, storing, and processing a large amount of data. Therefore, it is necessary to enable a system capable to handle the growing traffic requirements with the required level of QoS (Quality of Service). IoT devices become more complex due to the various components such as sensors and network interfaces. The IoT environment is often demanding for mobile power source, QoS, mobility, reliability, security, and other requirements. Therefore, new IoT technologies are required to overcome some of these issues. In recent years new wireless communication technologies are being developed to support the development of new IoT applications. This paper provides an overview of some of the most widely used wireless communication technologies used for IoT applications.

International Conference “New Technologies, Development and Applications”, 2020

Warehouses are premises used to store goods or products with the key task of ensuring its securit... more Warehouses are premises used to store goods or products with the key task of ensuring its security as well as maintaining its value and quality. Some unexpected events in the warehouse such as temperature fluctuations and humidity changes, and other unwanted events may destroy the value of goods and products.In such circumstances, continuous monitoring of the warehouse and condition control should be carried out. Internet of Things (IoT) enables the development of various cost-effective solutions based on modern Information and Communication Technologies (ICT) and infrastructure. IoT brings new opportunities and benefits for the development of Warehouse Management Systems (WMS). This paper put in light some possibilities of IoT applications for a smart warehouse monitoring system. We present a model of IoT system that helps to overcome some shortcomings in existing solutions for warehouse monitoring control.

7th International Maritime Science Conference (IMSC), 2017

E-learning is a computer based educational tool or system that enables possibility to learn anywh... more E-learning is a computer based educational tool or system that enables possibility to learn anywhere and anytime. Technology has
advanced so much that the geographical gap is bridged with the use of tools that make you feel as if you are inside the classroom. Elearning offers the ability to share material in all kinds of formats such as videos (eg. mp4, .flv, mpeg, avi), slideshows (eg. .ppt,
.pptx), word (doc, docx), Portable Document Format (.pdf), etc. These days learners are well versed in the use of smart phones, text
messaging and using the internet which made using and running an online course to become a simple affair. E-Learning, in
comparison with traditional learning, significantly reduces the time needed to locate information. It also offers access to online
resources, databases, periodicals, journals and other materials you wouldn't normally have access from a library. The main objective of
e-learning modules for transport is to create knowledge that will be available to stakeholders regardless of geographic distance. Using
e-learning platforms in transport systems can help in the analysis of transport processes, improvement and optimization of transport
processes, shaping an holistic approaches to protect the environment, development in strategic plans regarding sustainable mobility
solutions, etc. E-learning platforms in transport can help adapt to the curricula in high schools and universities in order to acquire
theoretical and practical knowledge and skills for employment in the transport companies.