Chanaa A, El Faddouli N- eddine. E-learning Text Sentiment Classification Using Hierarchical Attention Network (HAN). Int. J. Emerg. Technol. Learn. [Internet]. 2021 Jul. 13 [cited 2024 Apr. 20];16(13):pp. 157-167. Available from: https://online-journals.org/index.php/i-jet/article/view/22579