Hierarchical Heterogeneous Graph Representation Learning for Short Text Classification Yaqing Wang author Song Wang author Quanming Yao author Dejing Dou 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 wang-etal-2021-hierarchical 10.18653/v1/2021.emnlp-main.247 https://aclanthology.org/2021.emnlp-main.247/ 2021-11 3091 3101