Algorithm 1 General steps of memory-based CL.

Input: DAS data x, Label y, Parameters $\theta$; Initialize: Memory M← {} * M; Batch size b; 1:xM, yM$\leftarrow \mathit{MemoryRetrieval}($M$,b)$ 2:$\mathit{X},\mathit{Y}\leftarrow$x ∪ $x_M$, y ∪ $y_M$ 3:$\theta \leftarrow \mathit{ModelUpdate}(\mathit{X},\mathit{Y},\theta )$ 4:M$\leftarrow \mathit{MemoryUpdate}($M$,x,y)$