Duplex Sequence-to-Sequence Learning for Reversible Machine TranslationDownload PDF

21 May 2021, 20:49 (edited 24 Jan 2022)NeurIPS 2021 PosterReaders: Everyone
  • Keywords: duplex network, sequence-to-sequence learning, reversible machine translation
  • Abstract: Sequence-to-sequence learning naturally has two directions. How to effectively utilize supervision signals from both directions? Existing approaches either require two separate models, or a multitask-learned model but with inferior performance. In this paper, we propose REDER (Reversible Duplex Transformer), a parameter-efficient model and apply it to machine translation. Either end of REDER can simultaneously input and output a distinct language. Thus REDER enables {\em reversible machine translation} by simply flipping the input and output ends. Experiments verify that REDER achieves the first success of reversible machine translation, which helps outperform its multitask-trained baselines by up to 1.3 BLEU.
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  • Code: https://github.com/zhengzx-nlp/REDER
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