Averaged perceptron Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) [Nocedal80] Orthant-Wise Limited-memory Quasi-Newton (OWL-QN) [Andrew07] Primal Estimated sub-GrAdient SOlver (Pegasos) [Shalev-Shwartz07] Truncated Gradient [Langford09], これはL1正則化に特殊化したFOrward LOoking Subgradient (FOLOS) [Duchi09]としても知られています