A Novel Emotion Recognition System for Human-Robot Interaction (HRI) Using Deep Ensemble Classification. - Khalid Zaman; Gan Zengkang; Zhaoyun Sun; Sayyed Mudassar Shah; Waqar Riaz; Jiancheng Charles Ji; Tariq Hussain; Razaz Waheeb Attar (Int. J. Intell. Syst., 2025)