CUTMIX replaces a small sub-region of Image A with a patch sampled from Image B, with the labels mixed in proportion to sub-region sizes. 

University of Michigan - Ann Arbor

Another class of extensions of MIXUP which has been growing in the vision community attempts to fuse raw input image pairs together into a single input image, rather than improve the continuous interpolation mechanism.

Discrete Mix-Up Method

https://arxiv-download.xixiaoyao.cn/pdf/2105.03075.pdf

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