Hierarchical Annotation Event Extraction Method in Multiple Scenarios

Table 5

The effect of adding mask or not on argument recognition.

Model	(%)	(%)	(%)
Bert-BiLSTM-CRF (none)	86.36	82.03	84.13
Bert-BiLSTM-CRF (mask)	86.73	82.85	84.74
Bert-BiGRU-CRF (none)	86.48	82.37	84.37
Bert-BiGRU-CRF (mask)	86.92	83.14	84.99