Keywords and Instances: A Hierarchical Contrastive Learning Framework Unifying Hybrid Granularities for Text Generation Mingzhe Li author XieXiong Lin author Xiuying Chen author Jinxiong Chang author Qishen Zhang author Feng Wang author Taifeng Wang author Zhongyi Liu author Wei Chu author Dongyan Zhao author Rui Yan author 2022-05 text Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Smaranda Muresan editor Preslav Nakov editor Aline Villavicencio editor Association for Computational Linguistics Dublin, Ireland conference publication li-etal-2022-keywords 10.18653/v1/2022.acl-long.304 https://aclanthology.org/2022.acl-long.304/ 2022-05 4432 4441