نقترح نظام رواية لاستخدام محول Levenshtein لأداء مهمة تقدير جودة مستوى Word.محول Levenshtein هو مناسب طبيعي لهذه المهمة: تم تدريبه على إجراء فك التشفير بطريقة تكرارية، يمكن لمحول Levenshtein أن يتعلم النشر بعد تحرير دون إشراف صريح.لزيادة تقليل عدم التطابق بين مهمة الترجمة ومهمة QE على مستوى الكلمة، نقترح إجراء تعلم نقل من مرحلتين على كل من البيانات المعززة وبيانات ما بعد التحرير البشري.نقترح أيضا الاستدلال لبناء ملصقات مرجعية متوافقة مع Finetuning على مستوى الكلمات الفرعية والاستدلال.النتائج على مجموعة بيانات المهام المشتركة WMT 2020 تشاركت إلى أن طريقةنا المقترحة لها كفاءة بيانات فائقة تحت الإعداد المقيد للبيانات والأداء التنافسي تحت الإعداد غير المقيد.
We propose a novel scheme to use the Levenshtein Transformer to perform the task of word-level quality estimation. A Levenshtein Transformer is a natural fit for this task: trained to perform decoding in an iterative manner, a Levenshtein Transformer can learn to post-edit without explicit supervision. To further minimize the mismatch between the translation task and the word-level QE task, we propose a two-stage transfer learning procedure on both augmented data and human post-editing data. We also propose heuristics to construct reference labels that are compatible with subword-level finetuning and inference. Results on WMT 2020 QE shared task dataset show that our proposed method has superior data efficiency under the data-constrained setting and competitive performance under the unconstrained setting.
References used
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