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参考这篇文章:

https://blog.csdn.net/cxkyxx/article/details/108455805

我的理解:焦损不是解决样本不平衡的问题,而是解决硬/易样本的问题。

平衡熵

0r5mksxxczl4905.png

焦点损失

j0xj0zrnvey4906.png

样品平衡焦点损失

rqknbmdw3vk4907.png

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