| System | Chinese → Japanese | |
| PPL ↓ | BLEU ↑ | |
| Baseline | 2.71 | 38.58 |
| Double | 2.55 | 40.00 |
| Aug | 2.56 | 39.69 |
| Double + Radical | 2.54 | 39.72 |
| Aug + Radical | 2.54 | 40.16 |