rjgcjyr！: 您好，我想问一下有关grad-cam实现的问题？错误提示：RuntimeError: one of the variables needed for gradient computation has been modified by an inplace operation: [torch.cuda.FloatTensor [64, 512, 7, 7]], which is output 0 of ReluBackward0, is at version 513; expected version 1 instead. Hint: the backtrace further above shows the operation that failed to compute its gradient. The variable in question was changed in there or anywhere later. Good luck! 我将代码中的+=和*=分别改为了torch.add()和torch.mul,还是报相同错误，您可以帮忙解答一下吗？

一尘染: 怎么没有了

weixin_44292399: 请问能够自定义一个像\sin或者\cos一样的函数吗

独立呀: 下载下来再 install espnet 还是同样的错误

ViatorSun: 除以2是为了跟平方的2抵消，因此偏导数就不带系数了