is the positive sample while this image here is the negative sample right so this is the task that you ask of the neural network give it the anchor and you ask which one of the of these two comes from the same image right this is called contrastive learning now is a bit more complicated in that of course what you do is you encode these things using neural networks and then so each of the things you encode so the anchor you're going to encode all of these things using a neural network right and then this is what's going to