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Publications of Torsten Hoefler
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Elad Hoffer, Tal Ben-Nun, Itay Hubara, Niv Giladi, Torsten Hoefler, Daniel Soudry:

 Increasing batch size through instance repetition improves generalization

(In The IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Jun. 2020)

Abstract

Large-batch SGD is important for scaling training of deep neural networks. However, without fine-tuning hyperparameter schedules, the generalization of the model may be hampered. We propose to use batch augmentation: replicating instances of samples within the same batch with different data augmentations. Batch augmentation acts as a regularizer and an accelerator, increasing both generalization and performance scaling for a fixed budget of optimization steps. We analyze the effect of batch augmentation on gradient variance and show that it empirically improves convergence for a wide variety of networks and datasets. Our results show that batch augmentation reduces the number of necessary SGD updates to achieve the same accuracy as the state-of-the-art. Overall, this simple yet effective method enables faster training and better generalization by allowing more computational resources to be used concurrently.

Documents

 

BibTeX

@inproceedings{,
  author={Elad Hoffer and Tal Ben-Nun and Itay Hubara and Niv Giladi and Torsten Hoefler and Daniel Soudry},
  title={{Increasing batch size through instance repetition improves generalization}},
  year={2020},
  month={Jun.},
  booktitle={The IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},
  source={http://www.unixer.de/~htor/publications/},
}

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