Figure 9
From: Towards an efficient validation of dynamical whole-brain models
Computation time necessary for the execution of the optimization algorithms in relation to that used for the grid search (GS). (A, B) Ratios between the computation time of a single run of the optimization algorithms and the grid search averaged over all algorithm executions and subjects. The individual ratios are (A) 2Dim case: NMA2D 1.8%, PSO2D 231.0%, CMAES2D 55.6% and BO2D 1.9%; (B) 3Dim case: NMA3D 0.1%, PSO3D 7.7%, CMAES3D 1.9% and BO3D 0.1%. (C, D) Relative computation time necessary for reaching 80% of the success probability (see Fig. 8) compared to the time invested for the grid search. The values are obtained by multiplying those from the plots A and B by the respective numbers of needed runs provided in Fig. 8. For NMA3D, where a success probability of 80% could not be reached, 24 runs are considered necessary. The algorithms are indicated on the horizontal axes along with the percental values of time consumption on the vertical axes for the 2Dim (A, C) and 3Dim (B, D) cases. The figure was created with MATLAB R2018a (www.mathworks.com).
