Journal
KNOWLEDGE-BASED SYSTEMS
Volume 244, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.knosys.2022.108505
Keywords
Intrusion detection system; Internet of Things; Multi-objective optimization; Fog computing; Convolutional neural network; Neuroevolution
Categories
Funding
- National Natural Science Foundation of China [U1713212, 61876110]
- Shenzhen Scientific Research and Development Funding Program [JCYJ20190808164211203]
- Guangdong Pearl River Talent Recruitment Program'' [2019ZT08X603]
- Shenzhen Science and Technology Innovation Commission [R2020A045]
- CONACyT [1920]
- Basque Government through the BERC 2022-2025 program by the Spanish Ministry of Science
- 2018 SEPCinvestav grant [4]
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With the rapid development of the IoT, network security becomes a major challenge. This paper proposes a multi-objective evolutionary convolutional neural network for intrusion detection system, which runs on fog nodes to achieve low-latency and high-accuracy intrusion detection. Experimental studies demonstrate that the proposed system outperforms other state-of-the-art IDSs in terms of detection performance and robustness.
Our world is moving fast towards the era of the Internet of Things (IoT), which connects all kinds of devices to digital services and brings significant convenience to our lives. With the rapid increase in the number of devices connected to the IoT, there may exist more network vulnerabilities, resulting in more network attacks. Under this dynamic IoT environment, an effective intrusion detection system (IDS) is urgently needed to detect attacks with low-latency and high accuracy. A number of promising IDSs have been proposed based on deep learning (DL) techniques, but they need to do parameter tuning under different environments, which is very time-consuming. To alleviate this problem, this paper proposes a multi-objective evolutionary convolutional neural network for intrusion detection system, called MECNN, which is run on the fog nodes of Fog computing on IoT. In this approach, convolutional neural network (CNN) is used as the classifier to detect intrusions and the multi-objective evolutionary algorithm based on decomposition (MOEA/D) algorithm is modified to evolve the CNN model, which greatly simplifies the parameter tuning process of DL. To be specific, a novel encoding scheme is first proposed to transform the topological architecture of CNN into a chromosome of MOEA/D and then the two conflicting objectives, i.e., detection performance and model complexity of the CNN model, are simultaneously optimized by MOEA/D, which can obtain a number of IDSs with various detection performance and model complexities. Then, the most suitable MECNN model can be deployed in different fog nodes of Fog computing, providing low-latency and high-accuracy intrusion detection for IoT. Finally, the experimental studies are conducted on two popular datasets (AWID and CIC-IDS2107), which have validated that our MECNN model can improve detection performance and robustness to better protect the IoT when compared to other state-of-the-art IDSs. (c) 2022 Elsevier B.V. All rights reserved.
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