eraserNut / MTMT

Code for the CVPR 2020 paper "A Multi-task Mean Teacher for Semi-supervised Shadow Detection"
101 stars 14 forks source link

why the MT work? #36

Open mountain-three opened 2 years ago

mountain-three commented 2 years ago

in my opinion,the mt just make the teacher and student network's outputs as the same as possible,but the same result doesn't mean the result is a correct result,especially when the labeled data is smaller than unlable data

eraserNut commented 2 years ago

With regard to the usefulness of unlabeled data, you can read this paper "A brief introduction to weakly supervised learning". Figure 3 in this paper maybe give you some enlightening.

mountain-three commented 2 years ago

Thanks for reply,But in the paper, when you count the conherency loss,you use the same unlabel input to teacher and student network,and minimize the difference between the outputs.the same image into two similar model,the outputs ought to be the same.so I think your idea is a good way to let your model output variance low but not kind of semi-supervised

eraserNut commented 2 years ago

A type of semi-supervised learning method is using consistency losses between multi-models. In this way, you can consider it a regularization method. For some evidence, you can read "Mean teachers are better role models: Weight-averaged consistency targets improve semi-supervised deep learning results".

mountain-three commented 2 years ago

Thank you very much!!

------------------ 原始邮件 ------------------ 发件人: "eraserNut/MTMT" @.>; 发送时间: 2022年6月16日(星期四) 下午3:55 @.>; @.**@.>; 主题: Re: [eraserNut/MTMT] why the MT work? (Issue #36)

A type of semi-supervised learning method is using consistency losses between multi-models. In this way, you can consider it a regularization method. For some evidence, you can read "Mean teachers are better role models: Weight-averaged consistency targets improve semi-supervised deep learning results".

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: @.***>