Model soups: averaging weights of multiple fine-tuned models improves accuracy without increasing inference time. - Wortsman, Mitchell; Ilharco, Gabriel; Gadre, Samir Yitzhak; Roelofs, Rebecca; Lopes, Raphael Gontijo; Morcos, Ari S.; Namkoong, Hongseok; Farhadi, Ali; Carmon, Yair; Kornblith, Simon; Schmidt, Ludwig (CoRR, 2022)