1. A method performed on a computing device, the method comprising: receiving, for each image in a set of images, facial recognition data that, for each face detected in the image, comprises a face identifier that uniquely identifies the face, a set of facial feature descriptors, a face score that indicates an overall quality of the face, and a face signature that, across the images in the set, uniquely identifies an entity that the face represents; and grouping, based at least on the face signatures, images of the set into groups, where each group comprises one or more images that each show a detected face that represents a same entity as that represented by any other detected face shown in any image in the group.