Graph Convolutions over Constituent Trees forSyntax-Aware Semantic Role Labeling
Table 1: Results with predicted and gold syntax on the CoNLL-2005 development set.
['[EMPTY]', 'Dev P', 'Dev R', 'Dev F1']
We can also observe that it is important to have the top BiLSTM layer. When we remove the BiLSTM layer, the performance drops by 1% F1. It is interesting that without this last layer, SpanGCN’s performance is roughly the same as that of the baseline. This shows the importance of spreading syntactic information from constituent boundaries to the rest of the sentence.