Chanaa, A. and El Faddouli, N.- eddine 2021. E-learning Text Sentiment Classification Using Hierarchical Attention Network (HAN). International Journal of Emerging Technologies in Learning (iJET). 16, 13 (Jul. 2021), pp. 157–167. DOI:https://doi.org/10.3991/ijet.v16i13.22579.