Language-independent Cross-lingual Contextual Representations

Sep 25, 2019 Blind Submission readers: everyone Show Bibtex
  • TL;DR: A language-independent contextual text representation for zero-shot cross-lingual transfer learning.
  • Abstract: Contextual representation models like BERT have achieved state-of-the-art performance on a diverse range of NLP tasks. We propose a cross-lingual contextual representation model that generates language-independent contextual representations. This helps to enable zero-shot cross-lingual transfer of a wide range of NLP models, on top of contextual representation models like BERT. We provide a formulation of language-independent cross-lingual contextual representation based on mono-lingual representations. Our formulation takes three steps to align sequences of vectors: transform, extract, and reorder. We present a detailed discussion about the process of learning cross-lingual contextual representations, also about the performance in cross-lingual transfer learning and its implications.
  • Keywords: contextual representation, cross-lingual, transfer learning
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