Faculty of Electrical Engineering and Information Technologies
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Item type:Publication, Machine Learning Based Classification of IoT Traffic(Brno University of Technology, 2023-06) ;Velichkovska, Bojana; With the rapid expansion and widespread adoption of the Internet of Things (IoT), maintaining secure connections among active devices can be challenging. Since IoT devices are limited in power and storage, they cannot perform complex tasks, which makes them vulnerable to different types of attacks. Given the volume of data generated daily, detecting anomalous behavior can be demanding. However, machine learning (ML) algorithms have proven successful in extracting complex patterns from big data, which has led to active applications in IoT. In this paper, we perform a comprehensive analysis, including 4 ML algorithms and 3 neural networks (NNs), and propose a pipeline which analyzes the influence data reduction (loss) has on the performance of these algorithms. We use random undersampling as a data reduction technique, which simulates reduced network traffic data. The pipeline investigates several degrees of data loss. The results show that models trained on the original data distribution obtain accuracy that verges on 100%. XGBoost performs best from the classic ML algorithms. From the deep learning models, the 2-layered NN provides excellent results and has sufficient depth for practical application. On the other hand, when the models are trained on the undersampled data, there is a decrease in performance, most notably in the case of NNs. The most prominent change is seen in the 4-layered NN, where the model trained on the original dataset detects attacks with a success of 93.53%, whereas the model trained on the maximally reduced data has a success of only 39.39%. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Blockchain Paradigm and Internet of Things(Springer Science and Business Media LLC, 2019-03-21) ;Rakovic, Valentin ;Karamachoski, Jovan; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Power optimization of LTE-800 and coexistence with DVB-T services(Elsevier BV, 2018-08) ;Denkovska, Marija; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Power and Channel Optimization for WiFi Networks Based on REM Data(Springer Nature, 2017-07-29); ;Rakovic, Valentin; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Dynamic Virtual Resource Allocation in Virtualized multi-RAT Cellular Networks(Springer Nature, 2017-06-08) ;Rakovic, Valentin ;Ichkov, Aleksandar ;Marinova, Simona ;Todorovski, Davor - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Research Challenges, Trends and Applications for Multi-Sensory Devices in Future Networked Systems(Springer Nature, 2017-05-24); ;Rakovic, Valentin - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The impact of RF parameters on perceived QoS in cellular mobile networks(IEEE, 2017-07) ;Asenov, Zoran - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Cloud based solution for vital signs tracking(IEEE, 2017-07) ;Rakovic, Valentin; ; ; op den Akker, Harm - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Analysis of virtual resource allocation for cloud-RAN based systems(IEEE, 2017-03) ;Rakovic, Valentin ;Ichkov, Aleksandar ;Grosheva, Nina; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Potentials for Application of Millimeter Wave Communications in Cellular Networks(Springer Science and Business Media LLC, 2016-11-01) ;Ichkov, Aleksandar;
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