Applying our adaptation approach, both "AdapBP" and "OutBP + AdapBP" consistently outperform the baseline, and the lat- ter produces further improvements over the former.
the BLEU scores of the "OutBP + AdapBP" method are 20.70 and 21.20, which obtain 0.48 and 0.98 points higher than the baseline method, and 0.16 and 0.09 points higher than the 'AdapBP" method.