Robust Detection of Adversarial Attacks for EEG-based Motor Imagery Classification using Hierarchical Deep Learning

Nour El Houda Sayah Ben Aissa, Abderrahmane Lakas, Ahmed Korichi, Chaker Abdelaziz Kerrache, Abdelkader Nasreddine Belkacem

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Electroencephalography (EEG) signal finds extensive use in various medical diagnoses and non-invasive brain computer interface (BCI) applications. These applications include assisting individuals with disabilities, operating devices, and facilitating communication with their environments. Recent EEG studies have achieved successful decoding of neural activity using only time series data, surpassing the classification accuracy achieved by human experts. However, the decoding models are susceptible to adversarial examples that remain imperceptible to human evaluation. Thus, there is a current lack of a versatile architecture capable of simultaneously detecting adversarial examples and classifying EEG data. In this paper, we explore a hierarchical neural network-based classifier and introduce an adversarial training approach to enable the first classifier to learn from both clean and adversarial EEG data, enhancing its resilience to adversarial attacks. Subsequently, clean data have fed to EEGNET model to classify each EEG data point into its respective class. In the evaluation phase, we focused on the robustness of this approach against Fast Gradient Sign Method (FGSM) adversarial attacks using the BCI Competition IV-2a dataset, We assessed this approach and achieved an accuracy of 99.92% and a Kappa score of 0.9985.

Original languageEnglish
Title of host publication2023 15th International Conference on Innovations in Information Technology, IIT 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages156-161
Number of pages6
ISBN (Electronic)9798350382396
DOIs
Publication statusPublished - 2023
Event15th International Conference on Innovations in Information Technology, IIT 2023 - Al Ain, United Arab Emirates
Duration: Nov 14 2023Nov 15 2023

Publication series

Name2023 15th International Conference on Innovations in Information Technology, IIT 2023

Conference

Conference15th International Conference on Innovations in Information Technology, IIT 2023
Country/TerritoryUnited Arab Emirates
CityAl Ain
Period11/14/2311/15/23

Keywords

  • BCI security
  • Deep Neural Networks
  • EEG Adversarial
  • EEGNET classifier

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Information Systems

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