SPSA, if memory serves. https://en.m.wikipedia.org/wiki/Simultaneous_perturbation_stochastic_approximation https://en.m.wikipedia.org/wiki/Simultaneous_perturb

SPSA, if memory serves. https://en.m.wikipedia.org/wiki/Simultaneous_perturbation_stochastic_approximation https://en.m.wikipedia.org/wiki/Simultaneous_perturbation_st...