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The Clever Trick Behind Google’s Inception: The 1×1 Convolution

What does a 1×1 conv even do?

Google’s Inception architecture has had lots of success in the image classification world —and much of it is owed to a clever trick known as 1×1 convolution, central to the model’s design.

One notices immediately that the 1×1 convolution is an essential part of the Inception module…