Real-Time Detection of Insulators and Drop Fuses Based on Improved YOLOv4

Table 3

Evaluation of models at the different initial learning rates.

Initial learning rate	Precision (%)	Recall (%)	mAP (%)
0.01	77.7	92.6	92.6
0.002	84.4	96.0	95.7
0.0015	88.0	96.7	97.0
0.001	86.3	96.7	96.8
0.0001	87.6	96.2	96.4