wowotou的博客

神经网络的模型结构 a1(2)=σ(W10(1)x0+W11(1)x1+W12(1)x2+W13(1)x3)a2(2)=σ(W20(1)x0+W21(1)x1+W22(1)x2+W23(1)x3)a3(2)=σ(W30(1)x0+W31(1)x1+W32(1)x2+W33(1)x3)\begin{gathered} a_1^{(2)} = \sigma(\mathbf{W} _{10}^{(1)}{x_0} + \mathbf{W} _{11}^{(1)}{x_1} + \mathbf{W} _{12