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.

#13

Langermann

#15

Gramacy & Lee 2D

#19

GradientLabyrinth

#20

NeuralCanyon

#25

Langermann 2

#29

Lévy 13

#32

EggHolder

#42

Styblinski-Tang

#50

Weierstrass

#50

Beale

#56

QuantumWell

#57

Griewank

#68

Ackley

#69

Rosenbrock

#74

Rastrigin

#74

Goldstein-Price