Hierarchical Annotation Event Extraction Method in Multiple Scenarios

Table 4

Data augmentation performance of trigger classification.

Model	(%)	(%)	(%)
Bert-BiLSTM-CRF (none)	94.86	88.03	91.31
Bert-BiLSTM-CRF (DA)	95.25	88.44	91.72
Bert-BiGRU-CRF (none)	94.62	88.69	91.56
Bert-BiGRU-CRF (DA)	95.47	88.74	91.98