Trian coco128 from scratch get 0 mAP about yolov5 HOT 3 CLOSED

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from yolov5.

i try 50 epoch, get the mAP@50 great then 0 after 15 epoch, the problem is simply due to that train from scratch need more time to converge.

from yolov5.

@yxNONG yes you are correct, training from scratch takes longer to converge. Note that when training extremely small datasets like coco128.yaml from scratch, minimum training is 300 epochs, and recommended training is up to 1000 epochs.

from yolov5.