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, Stavros Vassos, John Pavlopoulos, Ion Androutsopoulos


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
Anthology ID:
2025.coling-demos.17
Volume:
Proceedings of the 31st International Conference on Computational Linguistics: System Demonstrations
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert, Brodie Mather, Mark Dras
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
174–182
Language:
URL:
https://aclanthology.org/2025.coling-demos.17/
DOI:
Bibkey:
Cite (ACL):
Lefteris Loukas, Nikolaos Smyrnioudis, Chrysa Dikonomaki, Spiros Barbakos, Anastasios Toumazatos, John Koutsikakis, Manolis Kyriakakis, Mary Georgiou, Stavros Vassos, John Pavlopoulos, and Ion Androutsopoulos. 2025. GR-NLP-TOOLKIT: An Open-Source NLP Toolkit for Modern Greek. In Proceedings of the 31st International Conference on Computational Linguistics: System Demonstrations, pages 174–182, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
GR-NLP-TOOLKIT: An Open-Source NLP Toolkit for Modern Greek (Loukas et al., COLING 2025)
Copy Citation:
PDF:
https://aclanthology.org/2025.coling-demos.17.pdf