Leveraging Prefix Transfer for Multi-Intent Text Revision

Text revision is a necessary process to improve text quality. During this process, writers constantly edit texts out of different edit intentions.Identifying edit intention for a raw text is always an ambiguous work, and most previous work on revision systems mainly focuses on editing texts according to one specific edit intention.In this work, we aim to build a multi-intent text revision system that could revise texts without explicit intent annotation.Our system is based on prefix-tuning, which first gets prefixes for every edit intent, and then trains a prefix transfer module, enabling the system to selectively leverage the knowledge from various prefixes according to the input text.We conduct experiments on the IteraTeR dataset, and the results show that our system outperforms baselines. The system can significantly improve the SARI score with more than 3% improvements, which thrives on the learned editing intention prefixes.