On the Calibration of Multiclass Classification with Rejection. - Chenri Ni; Nontawat Charoenphakdee; Junya Honda; Masashi Sugiyama (NeurIPS, 2019)

On Possibility and Impossibility of Multiclass Classification with Rejection. - Chenri Ni; Nontawat Charoenphakdee; Junya Honda; Masashi Sugiyama (CoRR, 2019)