Transformers on Multilingual Clause-Level Morphology

Emre Can Acikgoz, Tilek Chubakov, Muge Kural, Gözde Şahin, Deniz Yuret


Abstract
This paper describes the KUIS-AI NLP team’s submission for the 1st Shared Task on Multilingual Clause-level Morphology (MRL2022). We present our work on all three parts of the shared task: inflection, reinflection, and analysis. We mainly explore two approaches: Trans- former models in combination with data augmentation, and exploiting the state-of-the-art language modeling techniques for morphological analysis. Data augmentation leads to a remarkable performance improvement for most of the languages in the inflection task. Prefix-tuning on pretrained mGPT model helps us to adapt reinflection and analysis tasks in a low-data setting. Additionally, we used pipeline architectures using publicly available open-source lemmatization tools and monolingual BERT- based morphological feature classifiers for rein- flection and analysis tasks, respectively. While Transformer architectures with data augmentation and pipeline architectures achieved the best results for inflection and reinflection tasks, pipelines and prefix-tuning on mGPT received the highest results for the analysis task. Our methods achieved first place in each of the three tasks and outperforms mT5-baseline with 89% for inflection, 80% for reflection, and 12% for analysis. Our code 1 is publicly available.
Anthology ID:
2022.mrl-1.10
Volume:
Proceedings of the 2nd Workshop on Multi-lingual Representation Learning (MRL)
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates (Hybrid)
Editors:
Duygu Ataman, Hila Gonen, Sebastian Ruder, Orhan Firat, Gözde Gül Sahin, Jamshidbek Mirzakhalov
Venue:
MRL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
100–105
Language:
URL:
https://aclanthology.org/2022.mrl-1.10
DOI:
10.18653/v1/2022.mrl-1.10
Bibkey:
Cite (ACL):
Emre Can Acikgoz, Tilek Chubakov, Muge Kural, Gözde Şahin, and Deniz Yuret. 2022. Transformers on Multilingual Clause-Level Morphology. In Proceedings of the 2nd Workshop on Multi-lingual Representation Learning (MRL), pages 100–105, Abu Dhabi, United Arab Emirates (Hybrid). Association for Computational Linguistics.
Cite (Informal):
Transformers on Multilingual Clause-Level Morphology (Acikgoz et al., MRL 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.mrl-1.10.pdf
Video:
 https://aclanthology.org/2022.mrl-1.10.mp4