Something for ‘update the best model’

[Tom-Dongfang]

Hello, thanks for the great work.
I want to talk about the main evaluation indices of the 'best model', and I noticed that ‘F1-score with regard to the change category’ is used as the main evaluation indices in your article,

Then I found 'mF1' which is the mean F1-score with regard to the change category and unchange category was used for updating for the bset model.

So I want to talk about whe
Therefore, I would like to ask which indicator mF1 or F1_1( F1-score with regard to the change category) is more suitable as the basis for the output of the bset model.
Thanks again and look forward to your reply.