Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751274
J. Softić, Z. Vejzovic
The study focused on assessing and testing Windows 10 to identify possible vulnerabilities and their ability to withstand cyber-attacks. CVE data, alongside other vulnerability reports, were instrumental in measuring the operating system's performance. Metasploit and Nmap were essential in penetration and intrusion experiments in a simulated environment. The study applied the following testing procedure: information gathering, scanning and results analysis, vulnerability selection, launch attacks, and gaining access to the operating system. Penetration testing involved eight attacks, two of which were effective against the different Windows 10 versions. Installing the latest version of Windows 10 did not guarantee complete protection against attacks. Further research is essential in assessing the system's vulnerabilities are recommending better solutions.
{"title":"Windows 10 Operating System: Vulnerability Assessment and Exploitation","authors":"J. Softić, Z. Vejzovic","doi":"10.1109/INFOTEH53737.2022.9751274","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751274","url":null,"abstract":"The study focused on assessing and testing Windows 10 to identify possible vulnerabilities and their ability to withstand cyber-attacks. CVE data, alongside other vulnerability reports, were instrumental in measuring the operating system's performance. Metasploit and Nmap were essential in penetration and intrusion experiments in a simulated environment. The study applied the following testing procedure: information gathering, scanning and results analysis, vulnerability selection, launch attacks, and gaining access to the operating system. Penetration testing involved eight attacks, two of which were effective against the different Windows 10 versions. Installing the latest version of Windows 10 did not guarantee complete protection against attacks. Further research is essential in assessing the system's vulnerabilities are recommending better solutions.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"62 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90422994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751322
Denis Ceke, N. Buzadija, S. Kunosić
The possibility of establishing a transparent public procurement process through the inclusion of protected transparent digital technologies or platforms, such as blockchain technology, represents a significant step forward in the field of public procurement. Furthermore, if we add to this idea the Ethereum network and the ability to create applications that run on this network, such as smart contracts, the procurement process can be made much more objective and transparent to all participants in the process. The proposed model presented in this paper consists of two smart contracts. Each one of them has its own basic building blocks used for different phases of the public procurement process, from the definition of security access polices for different parts of procurement contract, public procurement procedure, bidding by interested bidders, evaluation of bids and the final publication of the results. Elements of the proposed system have been analyzed and presented and some of the further development plans have been formulated.
{"title":"Enhancing transparency and fairness in public procurement process with the support of blockchain technology: a smart contract based approach","authors":"Denis Ceke, N. Buzadija, S. Kunosić","doi":"10.1109/INFOTEH53737.2022.9751322","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751322","url":null,"abstract":"The possibility of establishing a transparent public procurement process through the inclusion of protected transparent digital technologies or platforms, such as blockchain technology, represents a significant step forward in the field of public procurement. Furthermore, if we add to this idea the Ethereum network and the ability to create applications that run on this network, such as smart contracts, the procurement process can be made much more objective and transparent to all participants in the process. The proposed model presented in this paper consists of two smart contracts. Each one of them has its own basic building blocks used for different phases of the public procurement process, from the definition of security access polices for different parts of procurement contract, public procurement procedure, bidding by interested bidders, evaluation of bids and the final publication of the results. Elements of the proposed system have been analyzed and presented and some of the further development plans have been formulated.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"97 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85747112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751321
Miro Hegedic, Petar Gregurić, Matija Golec, Mihael Gudlin
Learning Factory is one of the educational tools that can be used to learn about Industry 4.0. technologies. It is a highly complex educational environment used to simulate the real manufacturing world as closely as possible. Since there are currently many learning factories globally, this paper outlines methods used to develop a new updated learning factory directory. The directory, which was developed using cutting-edge, no-code tools, results from a review of available scientific and public sources. Directory development resulted in an updated learning factories database that facilitates research work through more user-friendly access and enables comparison and networking of learning factories.
{"title":"Development of Learning Factory Directory - DoLF","authors":"Miro Hegedic, Petar Gregurić, Matija Golec, Mihael Gudlin","doi":"10.1109/INFOTEH53737.2022.9751321","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751321","url":null,"abstract":"Learning Factory is one of the educational tools that can be used to learn about Industry 4.0. technologies. It is a highly complex educational environment used to simulate the real manufacturing world as closely as possible. Since there are currently many learning factories globally, this paper outlines methods used to develop a new updated learning factory directory. The directory, which was developed using cutting-edge, no-code tools, results from a review of available scientific and public sources. Directory development resulted in an updated learning factories database that facilitates research work through more user-friendly access and enables comparison and networking of learning factories.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"31 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80356102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751298
Sofija Djordjevic
This paper proposes a system that facilitates the process of booking a taxi vehicle and provides users with a quick and efficient way to get to their vehicle. It will also discuss the effective software techniques which can be used during development of professional websites and how the proposed technique can make the process more efficient and effective by making changes in some of the phases to get better results. The proposed application aims to contribute to the modernization of the taxi industry by harnessing the power of advances in information and communication technology.
{"title":"Designing an information system to support the business of the taxi service","authors":"Sofija Djordjevic","doi":"10.1109/INFOTEH53737.2022.9751298","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751298","url":null,"abstract":"This paper proposes a system that facilitates the process of booking a taxi vehicle and provides users with a quick and efficient way to get to their vehicle. It will also discuss the effective software techniques which can be used during development of professional websites and how the proposed technique can make the process more efficient and effective by making changes in some of the phases to get better results. The proposed application aims to contribute to the modernization of the taxi industry by harnessing the power of advances in information and communication technology.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"37 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86771904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751325
T. Petrova, Z. Petrov
The article examines methods for separating contours from computed tomography images. The important about the contours is that they are the places where a sharp change in the brightness of adjacent pixels takes place and to highlight them must be used so called “high-pass filters”. The article examines the separation of contours by first-order differential operators. An analysis of the existing methods of contour separation in images and the results obtained from their application on tomographic images is presented.
{"title":"Visualization of Objects in Computer Tomography","authors":"T. Petrova, Z. Petrov","doi":"10.1109/INFOTEH53737.2022.9751325","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751325","url":null,"abstract":"The article examines methods for separating contours from computed tomography images. The important about the contours is that they are the places where a sharp change in the brightness of adjacent pixels takes place and to highlight them must be used so called “high-pass filters”. The article examines the separation of contours by first-order differential operators. An analysis of the existing methods of contour separation in images and the results obtained from their application on tomographic images is presented.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"7 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89317235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751301
Radmila Jankovic Babic, Alessia Amelio, I. Draganov
Handwriting recognition is a challenging task and with the advancements in the development of the deep learning such task can be performed even for very limited documents. This paper aims to perform writer identification and retrieval from historical documents using an ensemble of convolutional neural network models that were built using the Inception-ResNet-v2 pre-trained architecture. The dataset comprises 170 images grouped in 34 classes. The results prove that the ensemble model outperforms single pre-trained models, obtaining an accuracy of 96%.
{"title":"Writer Identification From Historical Documents Using Ensemble Deep Learning Transfer Models","authors":"Radmila Jankovic Babic, Alessia Amelio, I. Draganov","doi":"10.1109/INFOTEH53737.2022.9751301","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751301","url":null,"abstract":"Handwriting recognition is a challenging task and with the advancements in the development of the deep learning such task can be performed even for very limited documents. This paper aims to perform writer identification and retrieval from historical documents using an ensemble of convolutional neural network models that were built using the Inception-ResNet-v2 pre-trained architecture. The dataset comprises 170 images grouped in 34 classes. The results prove that the ensemble model outperforms single pre-trained models, obtaining an accuracy of 96%.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"134 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77375848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751339
V. Slavova, F. Andonov
This study uses a psycholinguistics approach to the task of recognizing the emotional tone of texts with the purpose of providing an additional source of information related to emotional valence (positive-negative emotion). A previous analysis found that the rates of vowel-consonant pairings (“biphones”) are strongly correlated with emotional valence. Here we apply the discovered dependencies on arbitrarily downloaded texts of Internet news items. The sub-lexical level of these texts, with a length from 0.5 to 2.5 pages, is analyzed in regard to emotional tone. The result confirms that the phonemic level composed of biphones is indicative for the emotional tone of real-life texts. The developed method relies solely on the information carried by the sounds in the language (as an independent channel of information) and can be applied in systems for classifying the emotional valence of real-world texts.
{"title":"Bad news or good news when recognizing emotional valence using phonemic content","authors":"V. Slavova, F. Andonov","doi":"10.1109/INFOTEH53737.2022.9751339","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751339","url":null,"abstract":"This study uses a psycholinguistics approach to the task of recognizing the emotional tone of texts with the purpose of providing an additional source of information related to emotional valence (positive-negative emotion). A previous analysis found that the rates of vowel-consonant pairings (“biphones”) are strongly correlated with emotional valence. Here we apply the discovered dependencies on arbitrarily downloaded texts of Internet news items. The sub-lexical level of these texts, with a length from 0.5 to 2.5 pages, is analyzed in regard to emotional tone. The result confirms that the phonemic level composed of biphones is indicative for the emotional tone of real-life texts. The developed method relies solely on the information carried by the sounds in the language (as an independent channel of information) and can be applied in systems for classifying the emotional valence of real-world texts.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"108 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77488222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751250
Anđelija Đordević, A. Milenković, D. Jankovic, P. Rajković, A. Spasic
Preservation of health data and monitoring of patients' treatment history is the basis for adequate treatment and prediction of potential diseases or conditions. Medical information systems (MISes) make it easier for healthcare professionals to search for and review all existing medical patient data for adequate treatment and provide the ability to warn of potential illnesses depending on previous treatments. However, MIS is often organized locally, at the healthcare institution or city level, and it is not possible to directly access data located in other healthcare facilities. Therefore, the collaboration of healthcare institutions' MISes is inevitable. This paper discusses the problem realization of heterogeneous MIS collaboration on the example of MIS MEDIS.NET collaboration with other healthcare institutions' MISes in the Republic of Serbia, which is reflected in the exchange of medical data for a particular patient. The described concept can be applied to the collaboration of other types of information systems, i.e., creating a distributed centralized system.
{"title":"Collaboration of Heterogeneous Medical Information Systems in the Republic of Serbia","authors":"Anđelija Đordević, A. Milenković, D. Jankovic, P. Rajković, A. Spasic","doi":"10.1109/INFOTEH53737.2022.9751250","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751250","url":null,"abstract":"Preservation of health data and monitoring of patients' treatment history is the basis for adequate treatment and prediction of potential diseases or conditions. Medical information systems (MISes) make it easier for healthcare professionals to search for and review all existing medical patient data for adequate treatment and provide the ability to warn of potential illnesses depending on previous treatments. However, MIS is often organized locally, at the healthcare institution or city level, and it is not possible to directly access data located in other healthcare facilities. Therefore, the collaboration of healthcare institutions' MISes is inevitable. This paper discusses the problem realization of heterogeneous MIS collaboration on the example of MIS MEDIS.NET collaboration with other healthcare institutions' MISes in the Republic of Serbia, which is reflected in the exchange of medical data for a particular patient. The described concept can be applied to the collaboration of other types of information systems, i.e., creating a distributed centralized system.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"64 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90744707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9769998
N. Stojanović, Vasilije Pantić, Vladan Damjanović, S. Vukmirovic
3D pose estimation is a quite fascinating problem in the computer vision field, which aims to get the 3D orientation of the object based on the 2D image and can be challenging to find the solution. These solutions are mostly used in the autonomous industry to properly detect cars’ orientation on street scenes. Most solutions and publicly available datasets refer to only one axis orientation (axis parallel to the road), while two others are set to zero. In this paper, we propose a new way of representing a 3D object orientation that is not limited only to the autonomous industry. Our proposal uses Euler angle representation and two coordinate systems (one from the camera and one from the detected object) to define angle orientation for each axis in 3D space. Because this approach is supposed to be used in creating datasets and solutions in the deep learning field, there are some restrictions to be considered to properly train your solution. To better represent the proposal of 3D orientation and its purpose, it is necessary to visualize the bounding box around the detected object, which will follow its orientation. The visualization part is being done using computer-generated images (CGI), while the algorithmic part uses quaternions instead of Euler angles for the rotation of the 3D bounding box.
{"title":"3D Vehicle Pose Estimation from an Image Using Geometry","authors":"N. Stojanović, Vasilije Pantić, Vladan Damjanović, S. Vukmirovic","doi":"10.1109/INFOTEH53737.2022.9769998","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9769998","url":null,"abstract":"3D pose estimation is a quite fascinating problem in the computer vision field, which aims to get the 3D orientation of the object based on the 2D image and can be challenging to find the solution. These solutions are mostly used in the autonomous industry to properly detect cars’ orientation on street scenes. Most solutions and publicly available datasets refer to only one axis orientation (axis parallel to the road), while two others are set to zero. In this paper, we propose a new way of representing a 3D object orientation that is not limited only to the autonomous industry. Our proposal uses Euler angle representation and two coordinate systems (one from the camera and one from the detected object) to define angle orientation for each axis in 3D space. Because this approach is supposed to be used in creating datasets and solutions in the deep learning field, there are some restrictions to be considered to properly train your solution. To better represent the proposal of 3D orientation and its purpose, it is necessary to visualize the bounding box around the detected object, which will follow its orientation. The visualization part is being done using computer-generated images (CGI), while the algorithmic part uses quaternions instead of Euler angles for the rotation of the 3D bounding box.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"21 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87932129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1109/INFOTEH53737.2022.9751259
Marko Č. Bošković, T. Šekara, M. Rapaić
In the present study, an optimization technique is performed to obtain optimal parameters of the fractional-order FOPID/PID controller for an automatic voltage regulator (AVR) system with the time delay introduced by measurement devices and communication links for data transfer. The primary aim of the controller design for AVR system is to sustain the terminal voltage of the synchronous generator (SG) within admissible ranges by adjusting exciter signals. The set of adjustable parameters of FOPID/PID controller is obtained through the maximization of the integral gain of FOPID controller under constraints on desired phase margin and two requirements on the basis of the non-symmetrical optimum principle. Resulting quality of the regulation is assessed with performance indices: settling time, overshoot and rise time, while Integral of the Absolute Error (IAE) is used as indicator of load disturbance rejection.
{"title":"An Optimal Design of 2DoF FOPID/PID Controller using Non-symmetrical Optimum Principle for an AVR System with Time Delay","authors":"Marko Č. Bošković, T. Šekara, M. Rapaić","doi":"10.1109/INFOTEH53737.2022.9751259","DOIUrl":"https://doi.org/10.1109/INFOTEH53737.2022.9751259","url":null,"abstract":"In the present study, an optimization technique is performed to obtain optimal parameters of the fractional-order FOPID/PID controller for an automatic voltage regulator (AVR) system with the time delay introduced by measurement devices and communication links for data transfer. The primary aim of the controller design for AVR system is to sustain the terminal voltage of the synchronous generator (SG) within admissible ranges by adjusting exciter signals. The set of adjustable parameters of FOPID/PID controller is obtained through the maximization of the integral gain of FOPID controller under constraints on desired phase margin and two requirements on the basis of the non-symmetrical optimum principle. Resulting quality of the regulation is assessed with performance indices: settling time, overshoot and rise time, while Integral of the Absolute Error (IAE) is used as indicator of load disturbance rejection.","PeriodicalId":6839,"journal":{"name":"2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87261577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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