unsupervised training which you've probably seen in previous machine learning literature but just in case you haven't supervised training is what we've been doing up to this point I would say probably the vast majority of this class is in the area of supervised learning this is where you have multiple axes in the case of tabular data or grids and other things in the case of image data but you have some sort of input coming in which is the X and you know what the correct Y's are you are going to train the model to produce