How to incrementally fine-tune AST model with the new data?

[jmren168]

Hi @YuanGongND,

Thanks for the awesome work.
We have to incrementally fine-tine AST model because our collected data are changed over time, or we have a new class of data.

In our case, we fine-tune the AST model with a 3-class dataset, and then fine-tune the resulting AST model with a 4-class dataset, or with the collected 3-class data which are changed over time.
Here, the first 3 classes of the 4-class dataset are the same as the 3-class dataset.

Is it possible to incrementally fine-tune AST model even if we have a 4-class dataset ?

Many thanks.