Neural AMR: Sequence-to-Sequence Models for Parsing and Generation
Table 6: BLEU scores for AMR generation for different linearization orders (DEV set).
['Linearization Order', 'BLEU']
Random linearization order performs somewhat worse than traversing the graph according to Human linearization order. Surprisingly, a per example random linearization order performs nearly identically to a global random order, arguing seq2seq models can learn to ignore artifacts of the conversion of graphs to linear sequences.