目标检测——Focal loss 论文笔记

论文链接：

https://xmfbit.github.io/2017/08/14/focal-loss-paper/

阅读以下资料后填坑

参考资料

1. https://www.zhihu.com/question/63581984

2. https://blog.csdn.net/weixin_40581617/article/details/78931635

3. https://xmfbit.github.io/2017/08/14/focal-loss-paper/