GoogLeNet

The GoogLeNet published in 2015 presented an effective and simple idea. Instead of applying a 3x3 or 5x5 convolution layer directly, in later layers, first apply a 1x1 convolution layer and then apply the real convolution layer. The 1x1 convolution average all depth values of each pixel and reduce the depth to one. So the 1x1 convolution is ...

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