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arXiv · 1706.04983

FreezeOut: Accelerate Training by Progressively Freezing Layers

Andrew Brock·Theodore Lim·J. M. Ritchie·Nick Weston
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Abstract

The early layers of a deep neural net have the fewest parameters, but take up the most computation. In this extended abstract, we propose to only train the hidden layers for a set portion of the training run, freezing them out one-by-one and excluding them from the backward pass. Through experiments on CIFAR, we empirically demonstrate that FreezeOut yields savings of up to 20% wall-clock time during training with 3% loss in accuracy for DenseNets, a 20% speedup without loss of accuracy for ResNets, and no improvement for VGG networks. Our code is publicly available at https://github.com/ajbrock/FreezeOut

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BibTeXRIS

Andrew Brock, Theodore Lim, J. M. Ritchie, Nick Weston. 2017-06-15. FreezeOut: Accelerate Training by Progressively Freezing Layers. https://arxiv.org/abs/1706.04983

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