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(ECCV 2016) Identity mappings in deep residual networks

Keyword [Pre-activation] [Identity Mapping]

He K, Zhang X, Ren S, et al. Identity mappings in deep residual networks[C]//European Conference on Computer Vision. Springer, Cham, 2016: 630-645.



1. Overview


In this paper, it analyzed the propagation formulations behind the residual building blocks

  • identity mapping is better
  • pre-activation is better

1.1. Identity Mapping







1.2. Pre-Activation

  • pre-activation (BN + ReLU) can normalize the signal of residual + F(x) which is not normalized