---
title: GLEU  
tags:
- evaluate
- metric
description: "Generalized Language Evaluation Understanding (GLEU) is a metric initially developed for Grammatical Error Correction (GEC), that builds upon BLEU by rewarding corrections while also correctly crediting unchanged source text."
sdk: gradio
sdk_version: 3.50
app_file: app.py
pinned: false
emoji: 💄
colorFrom: indigo
colorTo: green
---

# Metric Card for GLEU

## Metric Description

 GLEU metric can be used for any monolingual "translation" task, that is it can be used for Grammatical Error Correction and other text re-writing tasks. BLEU  computes n-gram precisions over the reference but assigns more weight to n-grams that have been correctly changed from the source. GLEU rewards corrections while also correctly crediting unchanged source text. 
 
## How to Use

Follow instructions on [the GitHub repository](https://github.com/cnap/gec-ranking) for the cited papers.

## Citation

- [Ground Truth for Grammatical Error Correction Metrics](https://aclanthology.org/P15-2097) by Courtney Napoles, Keisuke Sakaguchi, Joel Tetreault, and Matt Post. *Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing*.
- [GLEU Without Tuning](https://arxiv.org/abs/1605.02592) by Courtney Napoles, Keisuke Sakaguchi, Joel Tetreault, and Matt Post. arXiv.