Neural Quality Estimation of Grammatical Error Correction

Shamil Chollampatt, Hwee Tou Ng


Abstract
Grammatical error correction (GEC) systems deployed in language learning environments are expected to accurately correct errors in learners’ writing. However, in practice, they often produce spurious corrections and fail to correct many errors, thereby misleading learners. This necessitates the estimation of the quality of output sentences produced by GEC systems so that instructors can selectively intervene and re-correct the sentences which are poorly corrected by the system and ensure that learners get accurate feedback. We propose the first neural approach to automatic quality estimation of GEC output sentences that does not employ any hand-crafted features. Our system is trained in a supervised manner on learner sentences and corresponding GEC system outputs with quality score labels computed using human-annotated references. Our neural quality estimation models for GEC show significant improvements over a strong feature-based baseline. We also show that a state-of-the-art GEC system can be improved when quality scores are used as features for re-ranking the N-best candidates.
Anthology ID:
D18-1274
Volume:
Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing
Month:
October-November
Year:
2018
Address:
Brussels, Belgium
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
2528–2539
Language:
URL:
https://aclanthology.org/D18-1274
DOI:
10.18653/v1/D18-1274
Bibkey:
Cite (ACL):
Shamil Chollampatt and Hwee Tou Ng. 2018. Neural Quality Estimation of Grammatical Error Correction. In Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, pages 2528–2539, Brussels, Belgium. Association for Computational Linguistics.
Cite (Informal):
Neural Quality Estimation of Grammatical Error Correction (Chollampatt & Ng, EMNLP 2018)
Copy Citation:
PDF:
https://preview.aclanthology.org/auto-file-uploads/D18-1274.pdf
Code
 nusnlp/neuqe
Data
CoNLL-2014 Shared Task: Grammatical Error CorrectionFCEJFLEG