Loss collapse during training

[aisagarw]

I am trying to pretrain the SimSiam model on mscoco dataset.. but the loss collapses to -1 very quickly.. What are the possible reasons behind and some suggestions to solve the same?

[liuzuo-byte]

我在高光谱图像上训练也是，损失几个epoch就能降到-0.999，分类精度只有55%，为什么呢，我的是单GPU训练，有影响吗