Chinese Grammatical Error Diagnosis with Graph Convolution Network and Multi-task Learning

Yikang Luo, Zuyi Bao, Chen Li, Rui Wang


Abstract
This paper describes our participating system on the Chinese Grammatical Error Diagnosis (CGED) 2020 shared task. For the detection subtask, we propose two BERT-based approaches 1) with syntactic dependency trees enhancing the model performance and 2) under the multi-task learning framework to combine the sequence labeling and the sequence-to-sequence (seq2seq) models. For the correction subtask, we utilize the masked language model, the seq2seq model and the spelling check model to generate corrections based on the detection results. Finally, our system achieves the highest recall rate on the top-3 correction and the second best F1 score on identification level and position level.
Anthology ID:
2020.nlptea-1.6
Volume:
Proceedings of the 6th Workshop on Natural Language Processing Techniques for Educational Applications
Month:
December
Year:
2020
Address:
Suzhou, China
Venue:
NLP-TEA
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
44–48
Language:
URL:
https://aclanthology.org/2020.nlptea-1.6
DOI:
Bibkey:
Cite (ACL):
Yikang Luo, Zuyi Bao, Chen Li, and Rui Wang. 2020. Chinese Grammatical Error Diagnosis with Graph Convolution Network and Multi-task Learning. In Proceedings of the 6th Workshop on Natural Language Processing Techniques for Educational Applications, pages 44–48, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Chinese Grammatical Error Diagnosis with Graph Convolution Network and Multi-task Learning (Luo et al., NLP-TEA 2020)
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PDF:
https://aclanthology.org/2020.nlptea-1.6.pdf