I said this elsewhere[1], but its not immediately obvious that you can identify printers via machine learning. Classification gets really difficult when you hav

I said this elsewhere[1], but its not immediately obvious that you can identify printers via machine learning. Classification gets really difficult when you have millions or billions of classes. Accuracy tends to fall off a cliff. * https://news.ycombinator.com/item?id=14508048 https://news.ycombinator.com/item?id=14508048