Pub Date : 2020-02-01DOI: 10.1109/IT48810.2020.9070437
Igor Radisic, Sasa Lazarevic, I. Antović, Vojislav Stanojevic
This paper explores prediction capabilities of similarity metrics used in machine learning algorithms. Predictive capabilities of various similarity metrics are examined based on their application on data sets of varying sizes and properties and evaluation of derived results. Predicting outcomes in machine learning is fundamental to many different machine learning algorithms and the findings in this paper will clarify how good their predictive capabilities are and under which conditions.
{"title":"Evaluation of Predictive Capabilities of Similarity Metrics in Machine Learning","authors":"Igor Radisic, Sasa Lazarevic, I. Antović, Vojislav Stanojevic","doi":"10.1109/IT48810.2020.9070437","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070437","url":null,"abstract":"This paper explores prediction capabilities of similarity metrics used in machine learning algorithms. Predictive capabilities of various similarity metrics are examined based on their application on data sets of varying sizes and properties and evaluation of derived results. Predicting outcomes in machine learning is fundamental to many different machine learning algorithms and the findings in this paper will clarify how good their predictive capabilities are and under which conditions.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115690387","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070463
M. Brajović, L. Stanković, M. Daković
Vertex-frequency analysis (VF) can be considered as a generalization of the classical time-frequency analysis. It provides tools and algorithms aiming to characterize the localized signal behavior in the joint vertex-frequency domain. Localized Graph Fourier Transform (LGFT) is an example of such a tool, with a role in the graphs signal processing which is equivalent to the role of the Short-time Fourier transform in traditional signal processing. Bearing in mind the rapidly increasing amounts of data and large dimensions of graphs related to practical applications, the calculation complexity of each tool for the spectral analysis of signals on graphs shall be continuously revisited. As they provide the possibility to calculate VF representations using only local neighborhoods of vertices, without the need for the eigendecomposition, polynomial approximations of spectral windows are commonly used in practice, mostly in the form of the Chebychev approximation. This paper revisits this choice, compares it with two other polynomial approximation approaches, and investigates their influence on the VF-based graph signal analysis and inversion.
{"title":"On Polynomial Approximations of Spectral Windows in Vertex-Frequency Representations","authors":"M. Brajović, L. Stanković, M. Daković","doi":"10.1109/IT48810.2020.9070463","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070463","url":null,"abstract":"Vertex-frequency analysis (VF) can be considered as a generalization of the classical time-frequency analysis. It provides tools and algorithms aiming to characterize the localized signal behavior in the joint vertex-frequency domain. Localized Graph Fourier Transform (LGFT) is an example of such a tool, with a role in the graphs signal processing which is equivalent to the role of the Short-time Fourier transform in traditional signal processing. Bearing in mind the rapidly increasing amounts of data and large dimensions of graphs related to practical applications, the calculation complexity of each tool for the spectral analysis of signals on graphs shall be continuously revisited. As they provide the possibility to calculate VF representations using only local neighborhoods of vertices, without the need for the eigendecomposition, polynomial approximations of spectral windows are commonly used in practice, mostly in the form of the Chebychev approximation. This paper revisits this choice, compares it with two other polynomial approximation approaches, and investigates their influence on the VF-based graph signal analysis and inversion.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127931162","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070762
I. M. Diaaeldin, S. H. A. Abdel Aleem, A. El-Rafei, A. Abdelaziz, M. Ćalasan
Distribution Network Reconfiguration (DNR) is the optimized change in the tie-lines connecting distribution system feeders without altering its radial structure. In this work, a recent DNR mathematical algorithm based on the graphical representation of the distribution system connections is employed to optimally allocate distributed generations (DGs) along with DNR, simultaneously. In this context, DGs based smart inverters are the used DG types. Case studies are conducted on the 83-node practical distribution system. The merits of this work are to improve loss minimization and enhance its voltage stability. A recent metaheuristic optimization algorithm is employed to solve the proposed mixed-integer nonlinear programming problem (MINLP) called Harris Hawks Optimization (HHO) algorithm. The proposed optimization approach succeeded in minimizing the total active losses by 21.428%.
{"title":"Optimal Network Reconfiguration and Distributed Generation Allocation using Harris Hawks Optimization","authors":"I. M. Diaaeldin, S. H. A. Abdel Aleem, A. El-Rafei, A. Abdelaziz, M. Ćalasan","doi":"10.1109/IT48810.2020.9070762","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070762","url":null,"abstract":"Distribution Network Reconfiguration (DNR) is the optimized change in the tie-lines connecting distribution system feeders without altering its radial structure. In this work, a recent DNR mathematical algorithm based on the graphical representation of the distribution system connections is employed to optimally allocate distributed generations (DGs) along with DNR, simultaneously. In this context, DGs based smart inverters are the used DG types. Case studies are conducted on the 83-node practical distribution system. The merits of this work are to improve loss minimization and enhance its voltage stability. A recent metaheuristic optimization algorithm is employed to solve the proposed mixed-integer nonlinear programming problem (MINLP) called Harris Hawks Optimization (HHO) algorithm. The proposed optimization approach succeeded in minimizing the total active losses by 21.428%.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"143 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133111870","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070299
Maja Rolevski, Ž. Zečević
In this paper, we propose the MPPT algorithm that is based on the single-layer neural network model of the photovoltaic panel. It has been shown that the neural network can be employed to accurately model the relationship between the photovoltaic panel current, voltage, solar irradiance, and temperature. Unlike the equivalent circuit model, the neural network model can be used to calculate the gradient of the P-V curve, thus enabling the design of the simple MPPT technique that relies on the steepest ascent method. Simulation results show that the proposed algorithm exhibits a faster convergence speed and a smaller steady-state error than the conventional P&O algorithm.
{"title":"MPPT controller based on the neural network model of the photovoltaic panel","authors":"Maja Rolevski, Ž. Zečević","doi":"10.1109/IT48810.2020.9070299","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070299","url":null,"abstract":"In this paper, we propose the MPPT algorithm that is based on the single-layer neural network model of the photovoltaic panel. It has been shown that the neural network can be employed to accurately model the relationship between the photovoltaic panel current, voltage, solar irradiance, and temperature. Unlike the equivalent circuit model, the neural network model can be used to calculate the gradient of the P-V curve, thus enabling the design of the simple MPPT technique that relies on the steepest ascent method. Simulation results show that the proposed algorithm exhibits a faster convergence speed and a smaller steady-state error than the conventional P&O algorithm.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133759116","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070594
M. Radonjić, G. Kvascev, Milovan Radulovic, B. Krstajić
In this paper we propose one possible solution of microprocessor hardware platform for acquisition of sound signals from coal mill in thermal power plant. Proposed platform is based on Raspberry Pi 3B microcomputer, running Raspbian operating system. Sound acquisition is performed by command-line sound recorder arecord, which is part of the software package available with this operating system. Experimental results showed that this platform provides recordings comparable to recordings acquired by professional sound recorder, for particular application.
{"title":"One Example of Mobile Hardware Platform for Sound Acquisition in Industrial Environment","authors":"M. Radonjić, G. Kvascev, Milovan Radulovic, B. Krstajić","doi":"10.1109/IT48810.2020.9070594","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070594","url":null,"abstract":"In this paper we propose one possible solution of microprocessor hardware platform for acquisition of sound signals from coal mill in thermal power plant. Proposed platform is based on Raspberry Pi 3B microcomputer, running Raspbian operating system. Sound acquisition is performed by command-line sound recorder arecord, which is part of the software package available with this operating system. Experimental results showed that this platform provides recordings comparable to recordings acquired by professional sound recorder, for particular application.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128352890","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070538
Hasan Yetiş, M. Karakose
The high computational complexity of type-2 fuzzy systems causes emerging of alternative methods. Nonstationary fuzzy system, which aims to model the type-2 fuzzy sets with a number of type-1 sets -obtained with the help of perturbation function- is one of these methods. In this study, the type-1 fuzzy subsets which are used in nonstationary systems are optimized by the help of the genetic algorithms. Thanks to the convergence rate of the genetic algorithm, the obtained type-1 fuzzy subsystems are close to the best solution. So, the nonstationary fuzzy set which is generated using the genetic algorithm gives us a better solution instead of the nonstationary fuzzy sets created by perturbation functions which are based on mostly randomness. The success of the obtained nonstationary fuzz set is proven by the simulation results.
{"title":"Modelling Type-2 Fuzzy Systems by Optimized Nonstationary Fuzzy Sets with Genetic Algorithm","authors":"Hasan Yetiş, M. Karakose","doi":"10.1109/IT48810.2020.9070538","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070538","url":null,"abstract":"The high computational complexity of type-2 fuzzy systems causes emerging of alternative methods. Nonstationary fuzzy system, which aims to model the type-2 fuzzy sets with a number of type-1 sets -obtained with the help of perturbation function- is one of these methods. In this study, the type-1 fuzzy subsets which are used in nonstationary systems are optimized by the help of the genetic algorithms. Thanks to the convergence rate of the genetic algorithm, the obtained type-1 fuzzy subsystems are close to the best solution. So, the nonstationary fuzzy set which is generated using the genetic algorithm gives us a better solution instead of the nonstationary fuzzy sets created by perturbation functions which are based on mostly randomness. The success of the obtained nonstationary fuzz set is proven by the simulation results.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127285020","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070310
Nikola Pavlićević, N. Zaric, M. Radonjić
The trend of population aging and increasing number of people with cognitive and other impairments caused more demands in Ambient Assisted Living solutions development. The kitchen space and cooking process are identified as a critical in this domain, from security and assistive aspects. In this paper, we present a short overview of technical solutions related to the cooker monitoring and corresponding sensors. In order to improve existing solutions, we invoke the ultrasound sensor utilization for cookware detection, liquid level measurement and detection of user activities regarding the cooking process. We have setup the testing prototype based on ultrasound sensor and acquired some experimental results, which will be presented.
{"title":"Analysis of Ultrasound Sensor Applicability in AAL Systems for Cooking Process Monitoring","authors":"Nikola Pavlićević, N. Zaric, M. Radonjić","doi":"10.1109/IT48810.2020.9070310","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070310","url":null,"abstract":"The trend of population aging and increasing number of people with cognitive and other impairments caused more demands in Ambient Assisted Living solutions development. The kitchen space and cooking process are identified as a critical in this domain, from security and assistive aspects. In this paper, we present a short overview of technical solutions related to the cooker monitoring and corresponding sensors. In order to improve existing solutions, we invoke the ultrasound sensor utilization for cookware detection, liquid level measurement and detection of user activities regarding the cooking process. We have setup the testing prototype based on ultrasound sensor and acquired some experimental results, which will be presented.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126770159","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070444
Zorana Ikonić, Valentina Andjelković, Dusan Savic, A. R. da Silva
Structural System Analysis (SSA) is a complete and accurate method for producing the information system specifications. The main artifacts of this method are a hierarchical set of data flow diagrams, data dictionary, and specification of primitive processes. Silab-MDD approach defines a process to integrate the SSA method in the whole approach by developing domain-specific languages (DSLs) for specifying Data Flow diagrams and Data Dictionaries (DataDDSL). This paper focuses on DataDDSL.
结构系统分析(Structural System Analysis, SSA)是编制信息系统规范的一种完整、准确的方法。该方法的主要工件是一组分层的数据流程图、数据字典和原始过程规范。Silab-MDD方法定义了一个过程，通过开发用于指定数据流程图和数据字典的领域特定语言(dsl)，将SSA方法集成到整个方法中。本文的重点是DataDDSL。
{"title":"Development DSL for data dictionary using MPS","authors":"Zorana Ikonić, Valentina Andjelković, Dusan Savic, A. R. da Silva","doi":"10.1109/IT48810.2020.9070444","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070444","url":null,"abstract":"Structural System Analysis (SSA) is a complete and accurate method for producing the information system specifications. The main artifacts of this method are a hierarchical set of data flow diagrams, data dictionary, and specification of primitive processes. Silab-MDD approach defines a process to integrate the SSA method in the whole approach by developing domain-specific languages (DSLs) for specifying Data Flow diagrams and Data Dictionaries (DataDDSL). This paper focuses on DataDDSL.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116475090","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070294
Anita Ilić, Ana Ličina, Dusan Savic
The aim of this paper is the development of an intelligent programming robot for help with coding, using Java tools and libraries. This paper will examine the development process of Java software bots and their general objective. For the purpose of the successful development of an intelligent programming robot, the paper will provide theoretical guidance in selecting frameworks and development tools and assist in the development process, training and testing. It will compare existing software development tools for creating the bot that will quickly and reliably answer programming questions to users in the form of a conversation. As a result, it will provide a thorough foundation for the complete development of a chatbot.
{"title":"Chatbot development using Java tools and libraries","authors":"Anita Ilić, Ana Ličina, Dusan Savic","doi":"10.1109/IT48810.2020.9070294","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070294","url":null,"abstract":"The aim of this paper is the development of an intelligent programming robot for help with coding, using Java tools and libraries. This paper will examine the development process of Java software bots and their general objective. For the purpose of the successful development of an intelligent programming robot, the paper will provide theoretical guidance in selecting frameworks and development tools and assist in the development process, training and testing. It will compare existing software development tools for creating the bot that will quickly and reliably answer programming questions to users in the form of a conversation. As a result, it will provide a thorough foundation for the complete development of a chatbot.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126767521","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 : 2020-02-01DOI: 10.1109/IT48810.2020.9070718
S. Bauk, N. Kapidani, Zarko Luksic, Filipe Rodrigues, Luís Sousa
The paper presents key features of Unmanned Aerial Systems (UASs) deployed within the H2020 project Coordination Of Maritime assets for Persistent And Systematic Surveillance (COMPASS2020). The project has been conceived to enhance maritime safety, search and rescue at sea, as well as controlling and monitoring irregular migration and securing the European maritime borders from narcotics smuggling by means of the seamless integration and coordination of several manned and unmanned vehicles, specifically suited for these purposes. In this paper only the aerial segment has been considered, i.e., the Zephyr pseudo-satellite, as well as the AR3 Net Ray and the AR5 Life Ray Evolution crafts. Comparative advantages and disadvantages of these systems are presented, along with their info-communication roles within the project. Also, some directions for further research in the field are specified.
本文介绍了在H2020项目中部署的无人机系统(UASs)的关键特征，该项目用于持续和系统监视的海上资产协调(COMPASS2020)。该项目旨在加强海上安全、海上搜索和救援，以及控制和监测非正规移徙，并通过无缝整合和协调专门适用于这些目的的几种有人驾驶和无人驾驶车辆，确保欧洲海上边界不受毒品走私的影响。本文只考虑了空中部分，即Zephyr伪卫星，以及AR3 Net Ray和AR5 Life Ray Evolution工艺。介绍了这些系统的相对优势和劣势，以及它们在项目中的信息通信角色。并对今后的研究方向进行了展望。
{"title":"Review of Unmanned Aerial Systems for the Use as Maritime Surveillance Assets","authors":"S. Bauk, N. Kapidani, Zarko Luksic, Filipe Rodrigues, Luís Sousa","doi":"10.1109/IT48810.2020.9070718","DOIUrl":"https://doi.org/10.1109/IT48810.2020.9070718","url":null,"abstract":"The paper presents key features of Unmanned Aerial Systems (UASs) deployed within the H2020 project Coordination Of Maritime assets for Persistent And Systematic Surveillance (COMPASS2020). The project has been conceived to enhance maritime safety, search and rescue at sea, as well as controlling and monitoring irregular migration and securing the European maritime borders from narcotics smuggling by means of the seamless integration and coordination of several manned and unmanned vehicles, specifically suited for these purposes. In this paper only the aerial segment has been considered, i.e., the Zephyr pseudo-satellite, as well as the AR3 Net Ray and the AR5 Life Ray Evolution crafts. Comparative advantages and disadvantages of these systems are presented, along with their info-communication roles within the project. Also, some directions for further research in the field are specified.","PeriodicalId":220339,"journal":{"name":"2020 24th International Conference on Information Technology (IT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132428391","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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