Machine Learning - Coursera week5 cost function and backpropagation 1
1. cost function 这个多类别分类的神经网络和二分类的输出个数不同，二分类只有一个输出，二多分类模型有多个输出。多分类模型的输出也用one-hot码表示。 变量的定义： L = total number of layers in the network sl s l = number of units (not counting bias unit) in layer l K = n
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相关文章
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