Question about loss weighing

Dear auther,

Thanks for your great work!

The loss weighing here (https://github.com/pixeli99/SVD_Xtend/blob/609fbf92a3e39a78ed1e2a9e0764a1e912103c48/train_svd.py#L1028C17-L1028C25) is different from the weight used in EDM. 

Can you explain this line for me.

Thank you,
Yanrui