Classification of hierarchical text using geometric deep learning: the case of clinical trials corpus Sohrab Ferdowsi author Nikolay Borissov author Julien Knafou author Poorya Amini author Douglas Teodoro author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication ferdowsi-etal-2021-classification 10.18653/v1/2021.emnlp-main.48 https://aclanthology.org/2021.emnlp-main.48/ 2021-11 608 618