反向传导算法

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[译者注:
[译者注:
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:<math>
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\delta^{(n_l)}_i = \frac{\partial}{\partial z^{n_l}_i}J(W,b;x,y)
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= \frac{\partial}{\partial z^{n_l}_i}\frac{1}{2} \left\|y - h_{W,b}(x)\right\|^2
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= \frac{\partial}{\partial z^{n_l}_i}\frac{1}{2} \sum_{j=1}^S_n_l(y_j-a_j^(n_l))^2
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</math>
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]
]

Revision as of 13:36, 9 April 2013

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