question about the architecture

[Laughing-q]

@WongKinYiu hello, thanks for your excellent work. I am watching ultralytics/yolov5 recently, and I also noticed this issue. You achieve better mAP. I know little about yolov4 architecture, so i am wondering that is your work training with ultralytics/yolov5 by using original yolov4 architecture? or is there some other new layers you add to achieve better mAP?

[WongKinYiu]

Hello,

original YOLOv4 architecture gets 47.7AP/66.7AP50/52.1AP75.
after apply CSP and mish to whole model, it gets 48.1AP/66.9AP50/52.3AP75.
you can see development log to see the change.