GECko+ is an English language assisting tool that corrects mistakes of various types on written texts. While many well-settled pieces of software of its kind correct mistakes at the grammatical level (orthography and syntax), our novel pipeline allows the tool to perform corrections both at grammatical and at discourse level.

1. Clone the repository.

2. Create a virtual environment with Python 3.7.

3. Install the requirements files pip install -r requirements.txt. If it doesn't work, the following can be a workaround: python3.7 -m pip install -r requirements.txt

4. Download the models by executing:

   • mkdir -p application/models/gector/data/model_files && cd application/models/gector/data/model_files && curl -O https://grammarly-nlp-data-public.s3.amazonaws.com/gector/xlnet_0_gector.th.
   • mkdir -p application/models/sentence_reorder && cd application/models/sentence_reorder/ && curl -O http://tts.speech.cs.cmu.edu/sentence_order/nips_bert.tar && tar -xf nips_bert.tar && rm nips_bert.tar && mv nips_bert/ model/.

5. Run the web app locally by executing run.py. The default development URL is http://127.0.0.1:5000/.

1. Build the Docker image: docker build -t gecko-app ..
2. Run the image: docker run -d -p 3000:80 gecko-app. The URL will be http://0.0.0.0:3000/.

Our tool implements the two following models, for tackling, respectively, grammatical and discourse errors:

• Kostiantyn Omelianchuk, Vitaliy Atrasevych, Artem Chernodub and Oleksandr Skurzhanskyi "GECToR -- Grammatical Error Correction: Tag, Not Rewrite". In Proceedings of the Fifteenth Workshop on Innovative Use of NLP for Building Educational Applications. [arXiv]
• Prabhumoye, Shrimai, Ruslan Salakhutdinov, and Alan W. Black. "Topological Sort for Sentence Ordering." In Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics. [arXiv]

The paper describing GECko+ is finally out! If you find this tool useful in your research, please consider citing it:

@inproceedings{calo-etal-2021-gecko,
    title = "{GEC}ko+: a Grammatical and Discourse Error Correction Tool",
    author = "Cal{\`o}, Eduardo  and
      Jacqmin, L{\'e}o  and
      Rosemplatt, Thibo  and
      Amblard, Maxime  and
      Couceiro, Miguel  and
      Kulkarni, Ajinkya",
    booktitle = "Actes de la 28e Conf{\'e}rence sur le Traitement Automatique des Langues Naturelles. Volume 3 : D{\'e}monstrations",
    month = "6",
    year = "2021",
    address = "Lille, France",
    publisher = "ATALA",
    url = "https://aclanthology.org/2021.jeptalnrecital-demo.3",
    pages = "8--11",
    abstract = "We introduce GECko+, a web-based writing assistance tool for English that corrects errors both at the sentence and at the discourse level. It is based on two state-of-the-art models for grammar error correction and sentence ordering. GECko+ is available online as a web application that implements a pipeline combining the two models.",
}

We accept contributions, whether they intend to fix an issue or to add new functionalities. Don't hesitate to submit a pull request!

The software is distributed under Common Creative 4.0 license.