
Figure 1.
Event Extraction Process Map

Figure 2.
Pre-training and Fine-Tune process

Figure 3.
Graph structure of CRFs for linear chain conditional random fields

Figure 4.
Extracted event output structure, including event types and argument roles

Figure 5.
Comparison of P-value, R-value and F1-value of LSTM, BiLSTM and BERT-CRF models. P for Precision, R for Recall

Figure 6.
Comparison of P-value, R-value and F1-value of BERT, RoBERTa and ALBERT models Comparison of P, R and F1 values. P for Precision, R for Recall