apparently this even helps if the teacher is if the student model is the same as the teacher model now why does it help in this case and I think it is not exactly the case in this case because they always say their teacher model has this extra projection layer right and then the student model doesn't have that even if they do self-training but why does it help in this case I mean it's it's kind of shocking and I'm pretty sure it helps in any case but in this particular case it helps because now you're using the unlabeled data