I thought it would be dlib since that's open-source and very easy to use, but it's actually the Microsoft face recognition API, according to their paper: "Photo

I thought it would be dlib since that's open-source and very easy to use, but it's actually the Microsoft face recognition API, according to their paper: "Photo Sleuth: Combining Collective Intelligence and Computer Vision to Identify Historical Portrait", Mohanty et al 2018 http://crowd.cs.vt.edu/wordpress/wp-content/uploads/2018/04/Mohanty_Photo_Sleuth_CI_2018.pdf http://crowd.cs.vt.edu/wordpress/wp-content/uploads/2018/04/...