LEGO-ABSA: A Prompt-based Task Assemblable Unified Generative Framework for Multi-task Aspect-based Sentiment Analysis Tianhao Gao author Jun Fang author Hanyu Liu author Zhiyuan Liu author Chao Liu author Pengzhang Liu author Yongjun Bao author Weipeng Yan author 2022-10 text Proceedings of the 29th International Conference on Computational Linguistics Nicoletta Calzolari editor Chu-Ren Huang editor Hansaem Kim editor James Pustejovsky editor Leo Wanner editor Key-Sun Choi editor Pum-Mo Ryu editor Hsin-Hsi Chen editor Lucia Donatelli editor Heng Ji editor Sadao Kurohashi editor Patrizia Paggio editor Nianwen Xue editor Seokhwan Kim editor Younggyun Hahm editor Zhong He editor Tony Kyungil Lee editor Enrico Santus editor Francis Bond editor Seung-Hoon Na editor International Committee on Computational Linguistics Gyeongju, Republic of Korea conference publication gao-etal-2022-lego https://aclanthology.org/2022.coling-1.610/ 2022-10 7002 7012