so using unlabeled data to improve the data efficiency of label data label they like like low rate a regime supervised learning it's not it's not just specific to cell supervised learning like it can also be done using other methods like semi-supervised learning and and and those numbers representing the that the thick methods that just use label propagation pseudo labeling data augmentee unsupervised at augmentation and so forth will not cover that today but it will be covered in a future lecture and those are also very