Papers › Improving Code-Switching Dependency Parsing with Semi-Supervised Auxiliary Tasks
Improving Code-Switching Dependency Parsing with Semi-Supervised Auxiliary Tasks
Şaziye Özateş, Arzucan Özgür, Tunga Gungor, Özlem Çetinoğlu
Code-switching dependency parsing stands as a challenging task due to both the scarcity of necessary resources and the structural difficulties embedded in code-switched languages. In this study, we introduce novel sequence labeling models to be used as auxiliary tasks for dependency parsing of code-switched text in a semi-supervised scheme. We show that using auxiliary tasks enhances the performance of an LSTM-based dependency parsing model and leads to better results compared to an XLM-R-based model with significantly less computational and time complexity. As the first study that focuses on multiple code-switching language pairs for dependency parsing, we acquire state-of-the-art scores on all of the studied languages. Our best models outperform the previous work by 7.4 LAS points on average.
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