Deep Learning Methods for Multi-Channel EEG-Based Emotion Recognition


Olamat A., ÖZEL P., Atasever S.

INTERNATIONAL JOURNAL OF NEURAL SYSTEMS, vol.32, no.05, 2022 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 05
  • Publication Date: 2022
  • Doi Number: 10.1142/s0129065722500216
  • Journal Name: INTERNATIONAL JOURNAL OF NEURAL SYSTEMS
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, Applied Science & Technology Source, Biotechnology Research Abstracts, Compendex, Computer & Applied Sciences, EMBASE, INSPEC, MEDLINE
  • Keywords: Multi-variate empirical mode decomposition, emotional state analysis, transfer learning, AutoKeras, EEG, EMPIRICAL MODE DECOMPOSITION, CONVOLUTIONAL NEURAL-NETWORKS, FEATURES, ENTROPY, SIGNALS, EMD, CLASSIFICATION

Abstract

Currently, Fourier-based, wavelet-based, and Hilbert-based time-frequency techniques have generated considerable interest in classification studies for emotion recognition in human-computer interface investigations. Empirical mode decomposition (EMD), one of the Hilbert-based time-frequency techniques, has been developed as a tool for adaptive signal processing. Additionally, the multi-variate version strongly influences designing the common oscillation structure of a multi-channel signal by utilizing the common instantaneous concepts of frequency and bandwidth. Additionally, electroencephalographic (EEG) signals are strongly preferred for comprehending emotion recognition perspectives in human-machine interactions. This study aims to herald an emotion detection design via EEG signal decomposition using multi-variate empirical mode decomposition (MEMD). For emotion recognition, the SJTU emotion EEG dataset (SEED) is classified using deep learning methods. Convolutional neural networks (AlexNet, DenseNet-201, ResNet-101, and ResNet50) and AutoKeras architectures are selected for image classification. The proposed framework reaches 99% and 100% classification accuracy when transfer learning methods and the AutoKeras method are used, respectively.