backbone yolov4 about yolox

[yuto3o]

We follow the cspdarknet53 architecture to build yolov4, and darknet53 block is used to reproduce yolov3 in our repo.

Suffering from the lack of gpu device, the difference or the improvement might not be clear in ablation study.

I think CIoU Loss is a good choice.

[VeeranjaneyuluToka]

OK,Thanks for reply!
you have used binary cross entropy to calculate cls_loss, do you notice any benefit using this? I am using categorical cross entropy. And using focal loss would give any benefit?

[yuto3o]

Yes, most of the researchers regard the classification task in detection as multi-label learning.