isLouisHsu / isLouisHsu/isLouisHsu.github.io
全连接网络BP算法推导【矩阵形式】 | LOUIS' BLOG
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Description
前言在Feedforward Neural Network/5. 梯度推导中介绍了前馈神经网络的BP算法，但是推导结果为对元素的梯度，不便于编程且影响计算效率。本节以3层前馈全连接神经网络为例，介绍矩阵形式的BP算法推导。 网络定义定义多层全连接网络：【输入(input)】 -> 全连接层 -> sigmoid -> 【隐藏层(hidden)】-> 全连接层 -> 【
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