the negative direction of that for the positives which means you you're gonna pull them together and it's going to push into this direction with for the negative classes which means you you push them up and they also analyze what happens a in with relation to hardness so they say there are two kinds of if you just look at the positive samples there are two kinds there are easy positives where the network has already learned to match them closely where the inner product is almost one if you look at them that means the pIJ quantity is large