Question about the S3DIS Validation Set

[JNZZZ]

Thank you for your great work!
In your code I notice that you divide the S3DIS dataset into train set and val set(area 5, like other projects have done). But when a new active learning iteration begins , you choose the checkpoint that performs the best miou in val set to initialize parameters this iteration. I'm wondering if this may causes information leakage and makes the model overfitting.