negative loss

[jeethesh-pai]

Did you encounter negative loss during training.
I am seeing a negative loss after a few iteration for my Pascal VOC train set. I think it might be beacuse of the large alpha values produced. Do you know if we can clamp these values to some limits ? or might it be that i have decoded the bbox coordinates to pixel coordinates ? (Is the bbox_pred mentioned if the fastrcnnhead.py script the offsets to the target) ?

Thanks a lot in advance