Pub Date : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909507
C. Constantinov, Paul-Stefan Popescu, M. Mocanu
Professional networks are rapidly evolving, bringing a wealth of new functionalities, pushing for stronger ties and easing knowledge exchange. By considering their direct feedback, this research effort aims to uncover insights on the usage patterns and habits of professional network users. As such platforms have certain characteristics that differentiate them from generic social networks, their analysis requires tailored research approaches. Our study targeting LinkedIn was carried out using a survey consisting of 20 questions which was sent to 108 individuals that are either enrolled or have graduated from a technical programme of the University of Craiova and are now in different stages of their professional careers. The analysis of the responses has revealed interesting correlations and influences among certain actions, enabling both users and interested researchers to better understand LinkedIn. Results show that there are strong incentives for soon-to-be graduates, just getting ready to enter thejob market, to set up and maintain a professional online presence.
{"title":"Identifying LinkedIn Usage Pattems Based on Feedback from Students and Fresh Graduates","authors":"C. Constantinov, Paul-Stefan Popescu, M. Mocanu","doi":"10.1109/ROEDUNET.2019.8909507","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909507","url":null,"abstract":"Professional networks are rapidly evolving, bringing a wealth of new functionalities, pushing for stronger ties and easing knowledge exchange. By considering their direct feedback, this research effort aims to uncover insights on the usage patterns and habits of professional network users. As such platforms have certain characteristics that differentiate them from generic social networks, their analysis requires tailored research approaches. Our study targeting LinkedIn was carried out using a survey consisting of 20 questions which was sent to 108 individuals that are either enrolled or have graduated from a technical programme of the University of Craiova and are now in different stages of their professional careers. The analysis of the responses has revealed interesting correlations and influences among certain actions, enabling both users and interested researchers to better understand LinkedIn. Results show that there are strong incentives for soon-to-be graduates, just getting ready to enter thejob market, to set up and maintain a professional online presence.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121199298","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909551
L. Nagy, Adrian Colesa
Internet of Things (IoT) is being used more and more nowadays. While this makes our lives much easier, offering modern solutions like smart homes or cars, it also brings new security issues in this area: sensors and other similar IoT devices with scarce resources and functionality have limited ways of providing appropriate security, and every day there is an increasing number of malicious users taking advantage of this. As providing per-device protection is difficult or even impossible, a much better solution would be to do this in centralized manner, from the network router all local IoT devices are connected to. In this paper we propose a router-level IoT security method using a Raspberry Pi configured as a network router. We describe the necessary steps to conFigure the proposed security infrastructure, some possible attacks (e.g. SQL-injection, DoS, brute-force attacks) and defense strategies we developed against them.
{"title":"Router-based IoT Security using Raspberry Pi","authors":"L. Nagy, Adrian Colesa","doi":"10.1109/ROEDUNET.2019.8909551","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909551","url":null,"abstract":"Internet of Things (IoT) is being used more and more nowadays. While this makes our lives much easier, offering modern solutions like smart homes or cars, it also brings new security issues in this area: sensors and other similar IoT devices with scarce resources and functionality have limited ways of providing appropriate security, and every day there is an increasing number of malicious users taking advantage of this. As providing per-device protection is difficult or even impossible, a much better solution would be to do this in centralized manner, from the network router all local IoT devices are connected to. In this paper we propose a router-level IoT security method using a Raspberry Pi configured as a network router. We describe the necessary steps to conFigure the proposed security infrastructure, some possible attacks (e.g. SQL-injection, DoS, brute-force attacks) and defense strategies we developed against them.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133433096","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909478
O. Pelin, D. Tudose
This project proposes and describes a flexible and easy-to-use web platform for controlling IoT devices, accessible even for inexperienced users through either the browser or smartphone application. For a practical example, an air quality sensor is connected with a smartphone to the Web for its data to be processed and displayed. This way, a dashboard view which includes all the needed IoT sensor data is designed (Abstract)
{"title":"IoTPub – Infrastructure and Backend AP","authors":"O. Pelin, D. Tudose","doi":"10.1109/ROEDUNET.2019.8909478","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909478","url":null,"abstract":"This project proposes and describes a flexible and easy-to-use web platform for controlling IoT devices, accessible even for inexperienced users through either the browser or smartphone application. For a practical example, an air quality sensor is connected with a smartphone to the Web for its data to be processed and displayed. This way, a dashboard view which includes all the needed IoT sensor data is designed (Abstract)","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128964541","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909458
Marius-Cristian Buzea, Stefan Trausan-Matu, Traian Rebedea
In this paper, we propose a new approach to evaluate online feelings, emotions or opinions that allows text classification with some polarity and produce a solution for some relevant sentiment analysis challenges that improves the reliability of sentiment analysis performed. Thus, we propose a semi-supervised machine learning system, based on a taxonomy of emotionally charged words with three classes, taking into account the neutral polarity class, but also a comparison of results by applying several classification algorithms, such as Naïve Bayes, Decision Trees, Support Vector Machines and our proposed approach. We present aspects about natural language complexity from the sentiment perspective and some language resources, considering a Romanian corpus based on 25,841 news and a Romanian language dictionary containing 42,497 words, which can be used by sentiment analysis systems. The scope of the paper is to identify the utility and usability of multiple data sets in a real-world application, to get relevant results about online comments perception that can provide valuable future perspectives for a nation’s social and even political issues. The best result of our implemented system, after having processed the corpus, is over 82%, compared to classical machine learning classification methods with a best score of 70%.
{"title":"A Three Word-Level Approach Used in Machine Learning for Romanian Sentiment Analysis","authors":"Marius-Cristian Buzea, Stefan Trausan-Matu, Traian Rebedea","doi":"10.1109/ROEDUNET.2019.8909458","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909458","url":null,"abstract":"In this paper, we propose a new approach to evaluate online feelings, emotions or opinions that allows text classification with some polarity and produce a solution for some relevant sentiment analysis challenges that improves the reliability of sentiment analysis performed. Thus, we propose a semi-supervised machine learning system, based on a taxonomy of emotionally charged words with three classes, taking into account the neutral polarity class, but also a comparison of results by applying several classification algorithms, such as Naïve Bayes, Decision Trees, Support Vector Machines and our proposed approach. We present aspects about natural language complexity from the sentiment perspective and some language resources, considering a Romanian corpus based on 25,841 news and a Romanian language dictionary containing 42,497 words, which can be used by sentiment analysis systems. The scope of the paper is to identify the utility and usability of multiple data sets in a real-world application, to get relevant results about online comments perception that can provide valuable future perspectives for a nation’s social and even political issues. The best result of our implemented system, after having processed the corpus, is over 82%, compared to classical machine learning classification methods with a best score of 70%.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122254169","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909662
R. Curpen, Vlad Fernoaga, D. Robu, F. Sandu
This paper deals with modern Software Defined Radio (SDR) equipment, namely the Ettus USRP (Universal Software Radio Peripheral) type B210, which is controlled through an open-source Linux application, the Open-LTE, while attempting to perform 4G communications. The completed LTE sessions are then analyzed in depth in order to demonstrate that a SDR session is no different than a mobile operator’s LTE call, and to show that SDRs can act as completely functional eNodeB elements in small private mobile networks as long as they remain compliant with the radio spectrum law boundaries.
{"title":"Open-LTE Call Emulator in Software Defined Radio","authors":"R. Curpen, Vlad Fernoaga, D. Robu, F. Sandu","doi":"10.1109/ROEDUNET.2019.8909662","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909662","url":null,"abstract":"This paper deals with modern Software Defined Radio (SDR) equipment, namely the Ettus USRP (Universal Software Radio Peripheral) type B210, which is controlled through an open-source Linux application, the Open-LTE, while attempting to perform 4G communications. The completed LTE sessions are then analyzed in depth in order to demonstrate that a SDR session is no different than a mobile operator’s LTE call, and to show that SDRs can act as completely functional eNodeB elements in small private mobile networks as long as they remain compliant with the radio spectrum law boundaries.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116305971","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909453
C. Mancas
The performance of Cloud services is a cross-cutting aspect of particular importance because it defines how the service is operating. The main purpose of this paper is to present the results of vaious performance evaluation tests run both in private and public Cloud environments. Performing such analysis helps recommending which type of Cloud is suitable with respect to the application specificity. In addition, tests performed in a private Cloud testbed environment allow recommending a certain type of hypervisor according to the user resource requirements.
{"title":"Performance analysis in private and public Cloud infrastructures","authors":"C. Mancas","doi":"10.1109/ROEDUNET.2019.8909453","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909453","url":null,"abstract":"The performance of Cloud services is a cross-cutting aspect of particular importance because it defines how the service is operating. The main purpose of this paper is to present the results of vaious performance evaluation tests run both in private and public Cloud environments. Performing such analysis helps recommending which type of Cloud is suitable with respect to the application specificity. In addition, tests performed in a private Cloud testbed environment allow recommending a certain type of hypervisor according to the user resource requirements.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115543366","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909406
Jullia Birsan, F. Moldoveanu, A. Moldoveanu, M. Dascalu, A. Morar
It has always been important to know where we are in the world. In the past we used maps and compasses to find our way but today we are using GPS devices when travelling by foot, car or bike. The developments in location-based techniques and the growing usefulness of ubiquitous computing and context-dependent information have resulted in an increase business interest in location-based applications and services. Currently, there are many applications requiring precise location or real-time tracking of humans, animals or other things inside buildings. The current global positioning system is unreliable for interior spaces. Therefore, demand for indoor localization services is becoming a key requirement.This paper makes an analysis of recent developments in wireless indoor localization methods and systems, to have a better understanding of the state of the art and to inspire new scientific initiatives in this promising area.In order to achieve the purpose of the paper, the existing wireless localization systems and location methods are reviewed, and also comparing the related techniques and systems with future trends.
{"title":"Key Technologies for Indoor Positioning Systems","authors":"Jullia Birsan, F. Moldoveanu, A. Moldoveanu, M. Dascalu, A. Morar","doi":"10.1109/ROEDUNET.2019.8909406","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909406","url":null,"abstract":"It has always been important to know where we are in the world. In the past we used maps and compasses to find our way but today we are using GPS devices when travelling by foot, car or bike. The developments in location-based techniques and the growing usefulness of ubiquitous computing and context-dependent information have resulted in an increase business interest in location-based applications and services. Currently, there are many applications requiring precise location or real-time tracking of humans, animals or other things inside buildings. The current global positioning system is unreliable for interior spaces. Therefore, demand for indoor localization services is becoming a key requirement.This paper makes an analysis of recent developments in wireless indoor localization methods and systems, to have a better understanding of the state of the art and to inspire new scientific initiatives in this promising area.In order to achieve the purpose of the paper, the existing wireless localization systems and location methods are reviewed, and also comparing the related techniques and systems with future trends.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769018","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909584
Alexandru Raducanu, M. Cărăbaş, M. Barbulescu, N. Tapus, Gabriel Suliman
A commonly encountered problem within a scientific experiment is the monitoring of the activities and events that occur in the laboratories, so that the responsible employees are informed whenever an interesting event takes place, be it related to the scientific work being carried out, the safety of the equipment or event the safety of the involved personnel. The application described in this paper will be used to inform employees about the state of the experiments that are being monitored by sending them a notification on their mobile phones. The minimum requirements for deploying this solution consist in an object-oriented programming environment for Android technology, a Java compiler (for Unix or Windows), one or more SQL databases and a server architecture that supports those tools. The result is an Android application that generates notifications on the employee’s phones, notifications with relevant messages about events in the laboratory.
{"title":"Client-server application with Android mobile phone technology","authors":"Alexandru Raducanu, M. Cărăbaş, M. Barbulescu, N. Tapus, Gabriel Suliman","doi":"10.1109/ROEDUNET.2019.8909584","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909584","url":null,"abstract":"A commonly encountered problem within a scientific experiment is the monitoring of the activities and events that occur in the laboratories, so that the responsible employees are informed whenever an interesting event takes place, be it related to the scientific work being carried out, the safety of the equipment or event the safety of the involved personnel. The application described in this paper will be used to inform employees about the state of the experiments that are being monitored by sending them a notification on their mobile phones. The minimum requirements for deploying this solution consist in an object-oriented programming environment for Android technology, a Java compiler (for Unix or Windows), one or more SQL databases and a server architecture that supports those tools. The result is an Android application that generates notifications on the employee’s phones, notifications with relevant messages about events in the laboratory.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130528002","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 : 2019-10-01DOI: 10.1109/ROEDUNET.2019.8909454
Vlad Fernoaga, R. Curpen, Cosmin Nutiu, F. Sandu
The present paper aims to bring Artificial Intelligence (AI) in Software Defined Radio (SDR). A multichannel spectrum sensing problem, extended to a long-term spectral occupancy observation, enabled the authors to derive a “vertical” per-channel machine learning model that was tested in an integrated National Instruments (NI) environment – Ettus/NI USRP (Universal Software Radio Peripherals) service-driven, top-down, by LabVIEW. The proof-of-concept was based on a simple 8 channels PMR (Private Mobile Radio) use-case.
{"title":"Multichannel Software Defined Radio with Spectral Decision via Centralized Artificial Intelligence","authors":"Vlad Fernoaga, R. Curpen, Cosmin Nutiu, F. Sandu","doi":"10.1109/ROEDUNET.2019.8909454","DOIUrl":"https://doi.org/10.1109/ROEDUNET.2019.8909454","url":null,"abstract":"The present paper aims to bring Artificial Intelligence (AI) in Software Defined Radio (SDR). A multichannel spectrum sensing problem, extended to a long-term spectral occupancy observation, enabled the authors to derive a “vertical” per-channel machine learning model that was tested in an integrated National Instruments (NI) environment – Ettus/NI USRP (Universal Software Radio Peripherals) service-driven, top-down, by LabVIEW. The proof-of-concept was based on a simple 8 channels PMR (Private Mobile Radio) use-case.","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"48 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127623529","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 : 2019-10-01DOI: 10.1109/roedunet.2019.8909531
{"title":"[Title page]","authors":"","doi":"10.1109/roedunet.2019.8909531","DOIUrl":"https://doi.org/10.1109/roedunet.2019.8909531","url":null,"abstract":"","PeriodicalId":309683,"journal":{"name":"2019 18th RoEduNet Conference: Networking in Education and Research (RoEduNet)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132356218","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：