I'm curious about the criteria to get the best.pt out of several criteria.

Lee-jaehyun commented 2 years ago

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Question

I am training with custom data using yolov5m model.

And every time an epoch is in progress, the training results are being saved in a csv file.

Also, the weights are stored as best.pt last.pt .

Here, I am wondering about the criteria for best.pt .

train/box_loss obj_loss cls_loss mAP_0.5. mAP_0.5:0.95 val/box_loss obj_Loss cls_loss

Which of these criteria determines the best.pt ?

Additional

Help me plz.

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glenn-jocher commented 2 years ago

@Lee-jaehyun best.pt is saved on every maximum fitness epoch. fitness is defined by a weighted combination of metrics, but it's mostly mAP@0.5:0.95:

https://github.com/ultralytics/yolov5/blob/26f0415287b7fa333f559a8300cedc2274943ab6/utils/metrics.py#L15-L19

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