then stacking medicine labels with the ran augment and unsupervised data augmentation algorithms these are some of the algorithms that are explored to stack on top of meta pseudo labels unsupervised data augmentation enforces predictions Y given X to be consistent with the same X data point after it's gone through a data augmentation so in some cases data augmentation might mean like rotating an image translating it or horizontally flipping it in the case of natural language processing it might mean translating the sentence to German