Title
Neural Grammatical Error Correction Systems With Unsupervised Pre-Training On Synthetic Data
Abstract
Considerable effort has been made to address the data sparsity problem in neural grammatical error correction. In this work, we propose a simple and surprisingly effective unsupervised synthetic error generation method based on confusion sets extracted from a spellchecker to increase the amount of training data. Synthetic data is used to pre-train a Transformer sequence-to-sequence model, which not only improves over a strong baseline trained on authentic error-annotated data, but also enables the development of a practical GEC system in a scenario where little genuine error-annotated data is available. The developed systems placed first in the BEA19 shared task, achieving 69.47 and 64.24 F-0.5 in the restricted and low-resource tracks respectively, both on the W&I+LOCNESS test set. On the popular CoNLL 2014 test set, we report state-of-the-art results of 64.16 M-2 for the submitted system, and 61.30 M-2 for the constrained system trained on the NUCLE and Lang-8 data.
Year
Venue
Field
2019
INNOVATIVE USE OF NLP FOR BUILDING EDUCATIONAL APPLICATIONS
Pattern recognition,Computer science,Error detection and correction,Synthetic data,Artificial intelligence
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Roman Grundkiewicz110911.75
Marcin Junczys-Dowmunt231224.24
Kenneth Heafield357939.46