Release of the linear probing code

[Jeff-LiangF]

Hey,

Thanks for this awesome code! I am wondering whether you plan to release the linear probing code or not. According to the third party MAE repo, the linear probing results seem hard to be reproduced. It would be great if you plan to do so. Thanks!

[endernewton]

Yes we plan to release them but will do it later as it is less the focus.

One thing to mention for linear probing is that we use [cls] token outputs as the frozen features. With this (and with other details are handled well), it shouldn't be hard to reproduce the results with the released models.

[Jeff-LiangF]

Got it! Thank you.

[KaimingHe]

See https://github.com/facebookresearch/mae/blob/main/FINETUNE.md#linear-probing