The age gender model of the insight face, which paper it based on?

insightface got two model for age gender classification, but I can’t find any link of the paper, or which data they train/test on, do anyone know the details?Thanks

I am not sure but you could have a look at this dataset: https://data.vision.ee.ethz.ch/cvl/rrothe/imdb-wiki

IMDB-WIKI – 500k+ face images with age and gender labels