OC-Softmax loss function is proposed in paper: One-class Learning Towards Synthetic Voice Spoofing Detection. It often be used in synthetic voice spoofing detection task.
It is denoted as
Your can find this loss in this page:
https://github.com/SuchitReddi/Voice_Spoofing_Detection/blob/master/loss.py
In this paper:
\(\alpha=20,m_0=0.9,m_1 = 0.2\)
Effect of OC-Softmax
We can find the effect of OC-Softmax in this paper.