classes in imagenet have a similar number of labeled images for this purpose we duplicate images in classes where there are not enough images for classes where we have too many images we take the images with the highest confidence okay so this is just another technique this has basically nothing to do with their core idea but this is just another thing uh where they say okay we can treat this big uh thing that we scrape from the internet you know we can somehow filter and balance it smartly and that will work