Closed jumoran closed 4 years ago
It is not absolute, you can use the alpha coefficient to balance the positive and negative sample proportions or not. I didn't use it here, only gamma = 2.0. you can try to add alpha just modify the loss.py.
It is not absolute, you can use the alpha coefficient to balance the positive and negative sample proportions or not. I didn't use it here, only gamma = 2.0. you can try to add alpha just modify the loss.py.