Table 9. The proposed model’s performance and that of the ablation models.

Ablation models					Performance evaluations
Model	Balance	BiLSTM	CNN	GA module	Accuracy	Precision	Recall	F1-score
1	✓		✓	✓	0.92	0.91	0.91	0.92
2	✓	✓			0.90	0.90	0.90	0.90
3	✓	✓	✓	✓	0.97	0.96	0.97	0.96