Papers › Multilingual Transformer Encoders: a Word-Level Task-Agnostic Evaluation
Multilingual Transformer Encoders: a Word-Level Task-Agnostic Evaluation
Félix Gaschi, François Plesse, Parisa Rastin, Yannick Toussaint
Some Transformer-based models can perform cross-lingual transfer learning: those models can be trained on a specific task in one language and give relatively good results on the same task in another language, despite having been pre-trained on monolingual tasks only. But, there is no consensus yet on whether those transformer-based models learn universal patterns across languages. We propose a word-level task-agnostic method to evaluate the alignment of contextualized representations built by such models. We show that our method provides more accurate translated word pairs than previous methods to evaluate word-level alignment. And our results show that some inner layers of multilingual Transformer-based models outperform other explicitly aligned representations, and even more so according to a stricter definition of multilingual alignment.
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