Algorithm 1 Forward Pass of Multi-stream AdaBN in the traning phase

for $i=1,2,\cdots ,n$ do   for $k=1,2,\cdots ,M$ do    ${\mu }_{i,k}\leftarrow \mathbb{E}[\mathbf{U}{[k]}_{·i}]$    ${\sigma }_{i,k}^2\leftarrow \mathrm{Var}[\mathbf{U}{[k]}_{·i}]$    $\mathbf{V}{[k]}_i\leftarrow {\alpha }_i·(\mathbf{u}{[k]}_i-{\mu }_{i,k})/{\sigma }_{i,k}+{\beta }_i$   end for  end for