Bidirectional Tree-Structured LSTM with Head Lexicalization
Table 3: Test set accuracies of four head lexicalization methods on fine-grained classification.
['Method', 'L', 'R', 'A', 'G']
R gives better results compared to L due to relatively more right-branching structures in this treebank. A simple average yields similar results compared with right branching. In contrast, G outperforms A method by considering the relative weights of each branch according to tree-level contexts.