Video PreTraining (VPT): Learning to Act by Watching Unlabeled Online Videos - Baker, Bowen; Akkaya, Ilge; Zhokov, Peter; Huizinga, Joost; Tang, Jie; Ecoffet, Adrien; Houghton, Brandon; Sampedro, Raul; Clune, Jeff (Advances in Neural Information Processing Systems, 2022)