Electroencephalogram (EEG)-based emotion recognition has gained increasing attention due to its potential in objectively assessing affective states. However, many existing studies rely on limited datasets and focus on binary classification or narrow feature sets, limiting the granularity and generalizability of their findings. To address these challenges, this study explores a ternary classification framework for both valence and arousal dimensions—dividing each into low, medium, and high levels—to capture a broader spectrum of emotional responses. EEG recordings from ten randomly selected participants in the DEAP dataset were used. Each 60-second EEG segment was divided into six non-overlapping windows of 10 seconds to preserve temporal stability and extract reliable features. The Hilbert Transform was applied to compute instantaneous amplitude and phase information, enabling the detection of subtle variations in emotional states. These features were then classified using a feed-forward neural network. The proposed approach achieved impressive classification accuracies of 99.13% for arousal and 99.50% for valence, demonstrating its effectiveness in recognizing multi-level emotional states. By moving beyond binary labels and leveraging time-frequency domain features, this study contributes to the development of more refined and responsive emotion recognition systems. These findings offer promising insights for real-world applications in affective computing, mental health monitoring, and adaptive human-computer interaction, where precise emotion modeling plays a critical role.
Electroencephalography Emotion Feature Extraction Hilbert Transform Multi-Classification Signal Processing
Birincil Dil | İngilizce |
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Konular | Biyomedikal Mühendisliği (Diğer), Elektrik Mühendisliği (Diğer), Elektronik, Sensörler ve Dijital Donanım (Diğer) |
Bölüm | Araştırma Makalesi |
Yazarlar | |
Yayımlanma Tarihi | 1 Haziran 2025 |
Gönderilme Tarihi | 2 Mart 2025 |
Kabul Tarihi | 23 Mayıs 2025 |
Yayımlandığı Sayı | Yıl 2025 Cilt: 13 Sayı: 2 |