Trainable Hard Negative Examples in Contrastive Learning for Unsupervised Abstractive Summarization Haojie Zhuang author Wei Emma Zhang author Chang Dong author Jian Yang author Quan Sheng author 2024-03 text Findings of the Association for Computational Linguistics: EACL 2024 Yvette Graham editor Matthew Purver editor Association for Computational Linguistics St. Julian’s, Malta conference publication zhuang-etal-2024-trainable 10.18653/v1/2024.findings-eacl.110 https://aclanthology.org/2024.findings-eacl.110/ 2024-03 1589 1600