Functions are sorted based on the optimizer's performance relative to other algorithms. The rank number on each image (e.g. #1) indicates its standing on that specific function compared to all other optimizers tested.

#7

Weierstrass

#16

GradientLabyrinth

#37

Ackley

#40

NeuralCanyon

#42

Goldstein-Price

#43

Rosenbrock

#48

Rastrigin

#61

Beale

#63

Langermann

#65

Langermann 2

#68

Griewank

#78

EggHolder

#82

Gramacy & Lee 2D

#82

QuantumWell

#82

Styblinski-Tang

#86

Lévy 13