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Neural machine translation systems have become state-of-the-art approaches for Grammatical Error Correction (GEC) task. In this paper, we propose a copy-augmented architecture for the GEC task by copying the unchanged words from the source…

Computation and Language · Computer Science 2019-06-12 Wei Zhao , Liang Wang , Kewei Shen , Ruoyu Jia , Jingming Liu

Tokenization and sub-tokenization based models like word2vec, BERT and the GPTs are the state-of-the-art in natural language processing. Typically, these approaches have limitations with respect to their input representation. They fail to…

Computation and Language · Computer Science 2026-02-26 Felix Schneider , Maria Gogolev , Sven Sickert , Joachim Denzler

Non-parallel text style transfer has attracted increasing research interests in recent years. Despite successes in transferring the style based on the encoder-decoder framework, current approaches still lack the ability to preserve the…

Computation and Language · Computer Science 2021-02-02 Yukai Shi , Sen Zhang , Chenxing Zhou , Xiaodan Liang , Xiaojun Yang , Liang Lin

We describe an approach to Grammatical Error Correction (GEC) that is effective at making use of models trained on large amounts of weakly supervised bitext. We train the Transformer sequence-to-sequence model on 4B tokens of Wikipedia…

Computation and Language · Computer Science 2018-11-06 Jared Lichtarge , Christopher Alberti , Shankar Kumar , Noam Shazeer , Niki Parmar

Synthetic data generation is widely known to boost the accuracy of neural grammatical error correction (GEC) systems, but existing methods often lack diversity or are too simplistic to generate the broad range of grammatical errors made by…

Computation and Language · Computer Science 2021-05-28 Felix Stahlberg , Shankar Kumar

This paper presents a simple recipe to train state-of-the-art multilingual Grammatical Error Correction (GEC) models. We achieve this by first proposing a language-agnostic method to generate a large number of synthetic examples. The second…

Computation and Language · Computer Science 2022-08-10 Sascha Rothe , Jonathan Mallinson , Eric Malmi , Sebastian Krause , Aliaksei Severyn

Resources for Grammatical Error Correction (GEC) in non-English languages are scarce, while available spellcheckers in these languages are mostly limited to simple corrections and rules. In this paper we introduce a first GEC corpus for…

Computation and Language · Computer Science 2026-04-28 Teodor-Mihai Cotet , Stefan Ruseti , Mihai Dascalu

Grammatical Error Correction (GEC) is a task of detecting and correcting grammatical errors in sentences. Recently, neural machine translation systems have become popular approaches for this task. However, these methods lack the use of…

Computation and Language · Computer Science 2021-11-08 Zhaohong Wan , Xiaojun Wan

Grammatical error correction (GEC) is one of the areas in natural language processing in which purely neural models have not yet superseded more traditional symbolic models. Hybrid systems combining phrase-based statistical machine…

Computation and Language · Computer Science 2019-04-08 Felix Stahlberg , Christopher Bryant , Bill Byrne

Non-autoregressive generation (NAG) has recently attracted great attention due to its fast inference speed. However, the generation quality of existing NAG models still lags behind their autoregressive counterparts. In this work, we show…

Computation and Language · Computer Science 2021-02-17 Yixuan Su , Deng Cai , Yan Wang , David Vandyke , Simon Baker , Piji Li , Nigel Collier

We investigate the problem of Chinese Grammatical Error Correction (CGEC) and present a new framework named Tail-to-Tail (\textbf{TtT}) non-autoregressive sequence prediction to address the deep issues hidden in CGEC. Considering that most…

Computation and Language · Computer Science 2021-10-27 Piji Li , Shuming Shi

Some grammatical error correction (GEC) systems incorporate hand-crafted rules and achieve positive results. However, manually defining rules is time-consuming and laborious. In view of this, we propose a method to mine error templates for…

Computation and Language · Computer Science 2022-06-24 Yue Zhang , Haochen Jiang , Zuyi Bao , Bo Zhang , Chen Li , Zhenghua Li

Generating faithful and readable styled text images (especially for Styled Handwritten Text generation - HTG) is an open problem with several possible applications across graphic design, document understanding, and image editing. A lot of…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Carmine Zaccagnino , Fabio Quattrini , Vittorio Pippi , Silvia Cascianelli , Alessio Tonioni , Rita Cucchiara

Non-autoregressive Transformer is a promising text generation model. However, current non-autoregressive models still fall behind their autoregressive counterparts in translation quality. We attribute this accuracy gap to the lack of…

Computation and Language · Computer Science 2021-03-23 Yu Bao , Shujian Huang , Tong Xiao , Dongqi Wang , Xinyu Dai , Jiajun Chen

Autoregressive decoding is the only part of sequence-to-sequence models that prevents them from massive parallelization at inference time. Non-autoregressive models enable the decoder to generate all output symbols independently in…

Computation and Language · Computer Science 2018-11-13 Jindřich Libovický , Jindřich Helcl

Grammatical error correction (GEC) is the task of correcting typos, spelling, punctuation and grammatical issues in text. Approaching the problem as a sequence-to-sequence task, we compare the use of a common subword unit vocabulary and…

Grammatical Error Correction (GEC) is the task of automatically detecting and correcting errors in text. The task not only includes the correction of grammatical errors, such as missing prepositions and mismatched subject-verb agreement,…

Computation and Language · Computer Science 2023-12-05 Christopher Bryant , Zheng Yuan , Muhammad Reza Qorib , Hannan Cao , Hwee Tou Ng , Ted Briscoe

State-of-the-art approaches to spelling error correction problem include Transformer-based Seq2Seq models, which require large training sets and suffer from slow inference time; and sequence labeling models based on Transformer encoders…

Computation and Language · Computer Science 2021-09-30 Mengyi Gao , Canran Xu , Peng Shi

Non-autoregressive models greatly improve decoding speed over typical sequence-to-sequence models, but suffer from degraded performance. Infilling and iterative refinement models make up some of this gap by editing the outputs of a…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-28 Ethan A. Chi , Julian Salazar , Katrin Kirchhoff

Grammatical Error Correction (GEC) has been recently modeled using the sequence-to-sequence framework. However, unlike sequence transduction problems such as machine translation, GEC suffers from the lack of plentiful parallel data. We…

Computation and Language · Computer Science 2019-04-12 Jared Lichtarge , Chris Alberti , Shankar Kumar , Noam Shazeer , Niki Parmar , Simon Tong