This paper describes the KUIS-AI NLP team's submission for the 1$^{st}$ 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: Transformer models in combination with data augmentation, and exploiting the state-of-the-art language modeling techniques for morphological analysis. Data augmentation leads 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 reinflection 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 reinflection and ~12\% for analysis. Our code https://github.com/emrecanacikgoz/mrl2022 is publicly available.

本文介绍了我们在MRL 2022胜出的系统，主要探索了基于transformers的两种方法：从头训练模型结合数据增强以及在多语言词形态任务中进行前缀调校的迁移学习，其中数据增强显著提高了大多数语言的词形和重构任务的性能，而前缀调校在预先训练的mGPT模型上对低数据量和多语言环境中的分析任务进行了适应，结果显示transformers与数据增强在词形和重构任务方面取得了最佳结果，而在分析任务方面，基于mGPT的前缀调校取得了最高结果。

百万级跨语言条款级联结构转换器