Hierarchical Multi-label Text Classification with Horizontal and Vertical Category Correlations Linli Xu author Sijie Teng author Ruoyu Zhao author Junliang Guo author Chi Xiao author Deqiang Jiang author Bo Ren 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 xu-etal-2021-hierarchical 10.18653/v1/2021.emnlp-main.190 https://aclanthology.org/2021.emnlp-main.190/ 2021-11 2459 2468