model which it isn't so in the hierarchical softmax what you do instead of having this giant multi-class classification task right here you take all of these classes right here and you put them in a sort of a tree okay so you take this and you put them into a tree so instead of classifying you know let's say we have a thousand classes instead of classifying a thousand ways we first classify in two ways and then we classify in two ways again from each one and then we classify in two ways again as you know a thousand is like two to