Although they often have less data (but it wouldn't really matter in this case since he used a pretrained model), he could have used one of the many public face

Although they often have less data (but it wouldn't really matter in this case since he used a pretrained model), he could have used one of the many public face recognition datasets that are already out there and exist exactly for this purpose like LFW [0]. [0] http://vis-www.cs.umass.edu/lfw/ http://vis-www.cs.umass.edu/lfw/