Self-Supervised Multimodal Opinion Summarization Jinbae Im author Moonki Kim author Hoyeop Lee author Hyunsouk Cho author Sehee Chung author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication im-etal-2021-self 10.18653/v1/2021.acl-long.33 https://aclanthology.org/2021.acl-long.33/ 2021-08 388 403