LEGO: A Multi-agent Collaborative Framework with Role-playing and Iterative Feedback for Causality Explanation Generation Zhitao He author Pengfei Cao author Yubo Chen author Kang Liu author Ruopeng Li author Mengshu Sun author Jun Zhao author 2023-12 text Findings of the Association for Computational Linguistics: EMNLP 2023 Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication he-etal-2023-lego 10.18653/v1/2023.findings-emnlp.613 https://aclanthology.org/2023.findings-emnlp.613/ 2023-12 9142 9163