IOU is not 0.731

[AILearnerLi]

I use the dac.weights and only obtained 0.46 IOU. So the dac.weights is the final weight file?
I use the train.py file of iSmart2 and modify some parameters to train SkyNet, obtain 0.63 IOU. I can not get the 0.731 IOU. Are there some tricks in the training?

I find that only 10000 images of training dataset are randomly chosen in a training epoch. Why don't use all training datasets in a training epoch?

[TomG008]

0.731 IOU is tested by the hidden datasets only the organizers can access.
For training, you could surely use all training datasets but we reserve some for validation.