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2000
Volume 18, Issue 5
  • ISSN: 2666-2558
  • E-ISSN: 2666-2566

Abstract

Introduction

Emotions play a significant role in human relationships in everyday challenges. Human-machine interactions and the complexities of its research include humanoid robots which rely significantly on emotional queries. The present study recommends a novel methodology for human emotion classification using electroencephalogram (EEG) signals. Machine learning (ML) techniques based on electroencephalogram have demonstrated impressive results in distinguishing emotions.

Methods

The present study investigates five ensemble learning-based machine learning (EML) and five conventional machine learning (CML) algorithms for achieving the recognition of human emotions from EEG signals. The main objective of the current research study is to implement the optimal approach for classifying emotions and subsequently will achieve it by using physiological characteristics to categorise the seven main emotional states (stress, happy, sadness, anger, fear, disgust, and surprise). This research follows the study investigation of ensemble learning-based machine learning (EML) and conventional machine learning (CML) algorithms for achieving the recognition of human emotions from EEG signals. Initially, the EEG data in this study are categorized into theta, alpha, beta, and gamma bands using a DWT.

Results

With this idea, the research elaborates on further decomposition based on band-separated EEG signals known as intrinsic mode functions (IMFs) along with empirical mode decomposition is subsequently implemented. Then, 13 statistical characteristics are extracted from the IMFs using five multiclass EML algorithms: adaptive boosting, rotation random forest, bagging, random forest, and extreme gradient boost. The following procedure is carried out to construct an ML-based system. In the final phase, 10-fold cross-validation is used to assess the efficacy of these five EML algorithms. Accuracy, F1-score, and area-under-the-curve (AUC) are performance assessment metrics are employed to compare the final results of these algorithms with the five CML techniques.

Conclusion

The proposed method for EEG-based emotion analysis is significantly more effective and achieves greater outcomes than all of the techniques that were compared, based on the data from the experiments.

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2025-11-05

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A Novel Hybrid Feature Extraction Methods for EEG based Emotions Classification using Ensemble Approaches in HIED Dataset
Recent Advances in Computer Science and Communications 18, E280624231442 (2025); https://doi.org/10.2174/0126662558306769240624053833
/content/journals/rascs/10.2174/0126662558306769240624053833
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  • Article Type:     Research Article
Keyword(s): DWT; electroencephalograms (EEG); EMD; EML and CML; Emotion recognition; machine learning; physiological signals

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