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JFLEG (JHU FLuency-Extended GUG corpus)

Introduced by Courtney Napoles et al. in JFLEG: A Fluency Corpus and Benchmark for Grammatical Error Correction archive 2025-07-28

JFLEG is for developing and evaluating grammatical error correction (GEC). Unlike other corpora, it represents a broad range of language proficiency levels and uses holistic fluency edits to not only correct grammatical errors but also make the original text more native sounding.

Source: JFLEG: A Fluency Corpus and Benchmark for Grammatical Error Correction

HomepageBenchmarksPapers JSON

Benchmarks archive 2025-07-28

All 5 leaderboards whose dataset resolves to this page shown (sort by any header). "First row" is the archive's own first row at snapshot, in the archive's row order; nothing here re-ranks and metric direction is not asserted.

First row (archive order)PaperCode
Grammatical Error Correction JFLEG VERNet GLEU 62.1 Neural Quality Estimation with Multiple Hypotheses for... thunlp/VERNet 6 Compare
Grammatical Error Correction Restricted CNN Seq2Seq F0.5 70.14 (measured by Ge et al., 2018) A Multilayer Convolutional Encoder-Decoder Neural... nusnlp/mlconvgec2018 +2 4 Compare
Grammatical Error Correction Unrestricted CNN Seq2Seq + Fluency Boost F0.5 61.34 Reaching Human-level Performance in Automatic... getao/human-performance-gec 3 Compare
Grammatical Error Correction _Restricted_ Transformer GLEU 59.9 Approaching Neural Grammatical Error Correction as a... grammatical/neural-naacl2018 2 Compare
Grammatical Error Detection JFLEG BiLSTM-JOINT (trained on FCE) F0.5 52.52 Jointly Learning to Label Sentences and Tokens marekrei/mltagger +1 1 Compare

Papers archive 2025-07-28

10 shown of 10 papers with a leaderboard row on this dataset's benchmarks, newest first. The archive's own "papers using this dataset" list was never published, so this is the benchmark-backed subset; the archive's count for this dataset is 91. The Syntology column is from Syntology's graph (read 2026-09-24), stated per sample; it is not part of any archive number.

DateSamples run Syntology
LM-Critic: Language Models for Unsupervised Grammatical Error Correction 3 2 14 Sep 2021 not harvested
Neural Quality Estimation with Multiple Hypotheses for Grammatical Error Correction 1 1 10 May 2021 not harvested
Encoder-Decoder Models Can Benefit from Pre-trained Masked Language Models in Grammatical Error Correction 1 1 3 May 2020 not harvested
Improving Grammatical Error Correction via Pre-Training a Copy-Augmented Architecture with Unlabeled Data 6 1 1 Mar 2019 not harvested
Jointly Learning to Label Sentences and Tokens 2 1 14 Nov 2018 not harvested
Neural Quality Estimation of Grammatical Error Correction 1 1 1 Oct 2018 not harvested
Reaching Human-level Performance in Automatic Grammatical Error Correction: An Empirical Study 1 2 3 Jul 2018 not harvested
Near Human-Level Performance in Grammatical Error Correction with Hybrid Machine Translation 0 1 16 Apr 2018 not harvested
Approaching Neural Grammatical Error Correction as a Low-Resource Machine Translation Task 1 3 16 Apr 2018 not harvested
A Multilayer Convolutional Encoder-Decoder Neural Network for Grammatical Error Correction 3 3 26 Jan 2018 not harvested

Dataset loaders archive 2025-07-28

huggingface.co/datasets/jhu-clsp/jfleghuggingface/datasetstfpytorchjax
huggingface.co/datasets/jfleghuggingface/datasetstfpytorchjax
keisks/jfleg

3 loaders as listed in the archive; links are outbound and not re-checked here.

Tasks archive 2025-07-28

Grammatical Error CorrectionGrammatical Error Detection

License archive 2025-07-28

CC BY-NC-SA 4.0

Modalities archive 2025-07-28

Texts

Languages archive 2025-07-28

No language tagged.

Variants archive 2025-07-28

  • JFLEG
  • Restricted
  • Unrestricted
  • _Restricted_

4 variant names, as the archive lists them.

Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections