Before revision:  and is pre-trained on a joint multi-criteria corpus with meta learning algorithm  . Empirical results show that our PTM-CWS model can utilize the existing prior segmentation knowledge , reduce the discrepancy between the pre-training tasks and the downstream Chinese Word Segmentation tasks, and achieve new state-of-the-art performance on twelve Chinese Word Segmentation corpora .
After revision:  and is pre-trained on a joint multi-criteria corpus with meta learning algorithm . Empirical results show that our PTM-CWS model can utilize the existing prior segmentation knowledge , reduce the discrepancy between the pre-training tasks and the downstream Chinese Word Segmentation tasks, and achieve new state-of-the-art performance on twelve widely-used CWS datasets and significantly improve model performance in low-resource settings .