sz3321的博客

SoftMax-codenumpy数组版本numpy数组版本e_x=np.exe(x-np.max(x))softmax=e_x/e_x.sum(axis=0)

归一化codenumpy数组版本[0,1]numpy数组版本[0,1]1. x=(x-xmin)/(xmax-xmin)2. x=(x-xmin)/x.ptp()3. X_data -= X_data.min() X_data /= X_data.max()

one-hot codenumpy数组版本numpy数组版本Y_data=[3,5,4,9,1]y_data=np.eye(10)[Y_data]# output[[0. 0. 0. 1. 0. 0. 0. 0. 0. 0.] [0. 0. 0. 0. 0. 1. 0. 0. 0. 0.] [0. 0. 0. 0. 1. 0. 0. 0. 0. 0.] [0. 0. 0. 0. 0...

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