book_DeepLearning_in_PyTorch_Source
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in "手写数字识别器_minst_convnet.ipynb" in def forward() x = F.log_softmax(x, dim = 0) #输出层为log_softmax，即概率对数值log(p(x))。采用log_softmax可以使得后面的交叉熵计算更快 here the dim should be 1 because we see dim=0 as per data line
