HOTTER: Hierarchical Optimal Topic Transport with Explanatory Context Representations Sabine Wehnert author Christian Scheel author Simona Szakács-Behling author Maret Nieländer author Patrick Mielke author Ernesto William De Luca author 2021-11 text Findings of the Association for Computational Linguistics: EMNLP 2021 Marie-Francine Moens editor Xuanjing Huang editor Lucia Specia editor Scott Wen-tau Yih editor Association for Computational Linguistics Punta Cana, Dominican Republic conference publication wehnert-etal-2021-hotter-hierarchical 10.18653/v1/2021.findings-emnlp.418 https://aclanthology.org/2021.findings-emnlp.418/ 2021-11 4856 4866