Model | BP-BLEU | BLEU -1 | BLEU -2 | BLEU -3 | ROUGE -1 | ROUGE -2 | ROUGE -L |
w/o Graph Encoder | 22.65 | 59.35 | 31.34 | 22.21 | 62.40 | 35.90 | 58.80 |
w/o Graph Direction | 29.54 | 64.25 | 39.19 | 28.59 | 63.63 | 37.40 | 60.09 |
w/o Edge Attribute | 28.74 | 63.62 | 38.41 | 27.94 | 56.76 | 29.60 | 53.43 |
w/o Pointer Network | 28.72 | 63.27 | 38.12 | 27.64 | 56.51 | 29.45 | 53.26 |
NGGAT | 29.84 | 65.24 | 39.84 | 29.15 | 63.71 | 37.65 | 60.20 |