All experiments were run with the default settings except for a distortion-limit of 12 in the JP-EN experiment, as suggested by (Goto et al., 2013).
to put these results in the broader context of machine translation research, our approach (even without special handling of unknown words) achieved gains of up to 5.6 BLEU points over strong phrase-based and hierarchical phrase-based Moses baselines, with the help of an ensemble technique.