Before revision:  Experimental results on distant domain adaptation for English-to-Japanese translation and German-to-English translation indicate that our vocabulary adaptation improves the performance of  fine-tuning by 3.6 BLEU points .
After revision:  Experimental results on distant domain adaptation for English-to-Japanese translation and German-to-English translation indicate that our method improves the performance of fine-tuning by 3.6 BLEU points .