it's what it says it's you label your own data with your own classifier now that might be a bit outrageous and you basically saying wait a minute if I label my own data and learn a classifier on these labels isn't isn't it just going to come out the same and the answer is no right if you have a dataset because your classifier doesn't give you just first of all if your classifier is something like this right just happens to be and you label and you learn a new classifier it is going to be more like this right because it sort of maximizes a lot