GR-NLP-TOOLKIT: An Open-Source NLP Toolkit for Modern Greek
Lefteris Loukas, Nikolaos Smyrnioudis, Chrysa Dikonomaki, Spiros Barbakos, Anastasios Toumazatos, John Koutsikakis, Manolis Kyriakakis, Mary Georgiou
Abstract
We present GR-NLP-TOOLKIT, an open-source natural language processing (NLP) toolkit developed specifically for modern Greek. The toolkit provides state-of-the-art performance in five core NLP tasks, namely part-of-speech tagging, morphological tagging, dependency parsing, named entity recognition, and Greeklish-to-Greek transliteration. The toolkit is based on pre-trained Transformers, it is freely available, and can be easily installed in Python (pip install gr-nlp-toolkit). It is also accessible through a demonstration platform on HuggingFace, along with a publicly available API for non-commercial use. We discuss the functionality provided for each task, the underlying methods, experiments against comparable open-source toolkits, and future possible enhancements. The toolkit is available at: https://github.com/nlpaueb/gr-nlp-toolkit
BibTeX
@inproceedings{loukas-etal-2025-gr,
title = "{GR}-{NLP}-{TOOLKIT}: An Open-Source {NLP} Toolkit for {M}odern {G}reek",
author = "Loukas, Lefteris and
Smyrnioudis, Nikolaos and
Dikonomaki, Chrysa and
Barbakos, Spiros and
Toumazatos, Anastasios and
Koutsikakis, John and
Kyriakakis, Manolis and
Georgiou, Mary and
Vassos, Stavros and
Pavlopoulos, John and
Androutsopoulos, Ion",
editor = "Rambow, Owen and
Wanner, Leo and
Apidianaki, Marianna and
Al-Khalifa, Hend and
Eugenio, Barbara Di and
Schockaert, Steven and
Mather, Brodie and
Dras, Mark",
booktitle = "Proceedings of the 31st International Conference on Computational Linguistics: System Demonstrations",
month = jan,
year = "2025",
address = "Abu Dhabi, UAE",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2025.coling-demos.17/",
pages = "174--182"
}