LEGO: A Multi-agent Collaborative Framework with Role-playing and Iterative Feedback for Causality Explanation Generation
Zhi-Tao He, Pengfei Cao, Yubo Chen, Kang Liu, Ruopeng Li, Mengshu Sun, Jun Zhao · 2023
Causality Explanation Generation refers to generate an explanation in natural language given an initial cause-effect pair.It demands rigorous explicit rationales to demonstrate the acquisition of implicit commonsense knowledge, which is unlikely to be easily memorized, making it challenging for large language models since they are often suffering from spurious causal associations when they encounter the content that does not exist in their memory.In this work, we introduce LEGO, a Multi-agent Collaborative Framework with Role-playing and Iterative Feedback for causality explanation generation.Specifically, we exploit LLM as character malleable LEGO block and utilize role-playing to assign specific roles to five LLMs.We firstly devise a Fine-grained World Knowledge Integration Module to augment information about tasks for alleviating the phenomenon of spurious causal associations.Then, we leverage an Iterative Feedback and Refinement Module to improve the generated explanation by multi-aspect feedback.Extensive experiments on widely used WIKIWHY and e-CARE datasets show the superiority of our multi-agent framework in terms of reasoning about the causality among cause and effect.Cause: There were time constraints to writing "Boruto: Naruto the Movie" Effect: Hiroyuki Yamashita felt pressured writing "Boruto: Naruto the Movie" Explanation: Creativity is difficult when put on a strict timetable.There was a need to both produce a good movie and do so on a strict time budget.These two demands put stress on Hiroyuki Yamashita while he worked.Cause: Homer P. Rainey had liberal views.Effect: Homer P. Rainey was fired by the University of Texas in 1944.Explanation: If the University of Texas is conservative, they wouldn't want people working there who have liberal views.…Cause: The fleet of the seventh voyage of the Ming Treasure Voyages was sailing under favorable conditions and running before the southwest monsoon on their homeward voyage.Effect: The fleet of the seventh voyage of the Ming Treasure Voyages did not stop at Ceylon or southern India.