Darknet: Is mosaic recommended for tiny v4?

[ankandrew]

Default yolov4 tiny .cfg doesn't include mosaic augmentation, were any experiments done with it?

[AlexeyAB]

Yes. mosaic degrades accuracy for tiny model.
Stronger data augmentation should be used for large models.

[smallerhand]

Yes. mosaic degrades accuracy for tiny model.
Stronger data augmentation should be used for large models.

What is the difference between "tiny model" and "large model"?
(If it's custom model, )
Is that mean the number of the classes?
or size of the training dataset?

[ankandrew]

@smallerhand Large model is referring to normal YOLO v4 ( large because-> much more layers & computations than tiny version) The training size dataset doesn't change the computations of the CNN (it may take longer to train tho)

@AlexeyAB Thanks)