Libraly Journal

Libraly Journal ›› 2023, Vol. 42 ›› Issue (390): 87-94.

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Automatic Recognition of Place Names in Ancient PoetryBased on DA-BERT-CRF Models: Taking the AncientPoetries of Nanjing as an Example

Yu Xinling1, Chang E1, 2(1 School of Economics and Management, Southeast University; 2 Southeast University Library)   

  • Online:2023-10-15 Published:2023-11-01
  • About author:Yu Xinling1, Chang E1, 2(1 School of Economics and Management, Southeast University; 2 Southeast University Library)

Abstract:

The entity recognition of the place in ancient poetry not only helps to deeply explore therelationship between ancient poems, but also helps to draw the distribution of Chinese poetry and promotethe study of Chinese classical literature in spatial dimension. The paper collected the data about theancient poetry of Nanjing and marked the place names with BIOES. Aiming at the lack of training data inthe field of ancient poetry, the paper proposed a place name recognition model in ancient poetry, whichused a data augmentation method and combined the pre-training model and CRF model, called DABERT-CRF model. In this paper, the training data was enhanced by the entity cross-exchange method.The context semantic information of the place names in ancient poetry was obtained by BERT model.Then, the CRF model was used to realize the constraint of the place name label and to generate the globaloptimal place name sequence. The average accuracy, average recall and average F value of the DA-BERTCRFmodel presented in this paper were 86.49%, 90.44% and 88.35% respectively.