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Smart city article details

Title	Engineering The Application Of Machine Learning In An Ids Based On Iot Traffic Flow
ID_Doc	23579
Authors	Prazeres N.; Costa R.L.D.C.; Santos L.; Rabadão C.
Year	2023
Published	Intelligent Systems with Applications, 17
DOI	http://dx.doi.org/10.1016/j.iswa.2023.200189
Abstract	Internet of Things (IoT) devices are now widely used, enabling intelligent services that, in association with new communication technologies like the 5G and broadband internet, boost smart-city environments. Despite their limited resources, IoT devices collect and share large amounts of data and are connected to the internet, becoming an attractive target for malicious actors. This work uses machine learning combined with an Intrusion Detection System (IDS) to detect possible attacks. Due to the limitations of IoT devices and low latency services, the IDS must have a specialized architecture. Furthermore, although machine learning-based solutions have high potential, there are still challenges related to training and generalization, which may impose constraints on the architecture. Our proposal is an IDS with a distributed architecture that relies on Fog computing to run specialized modules and use deep neural networks to identify malicious traffic inside IoT data flows. We compare our IoT-Flow IDS with three other architectures. We assess model generalization using test data from different datasets and evaluate their performance in terms of Recall, Precision, and F1-Score. Results confirm the feasibility of flow-based anomaly detection and the importance of network traffic segmentation and specialized models in the AI-based IDS for IoT. © 2023 The Author(s)
Author Keywords	Cybersecurity; Internet of things; Intrusion detection systems; Machine learning; Smart city

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