Fig. 3: Comparison between uniform grid sampling and CPBE. | Nature Communications

Fig. 3: Comparison between uniform grid sampling and CPBE.

From: Turn-key constrained parameter space exploration for particle accelerators using Bayesian active learning

Fig. 3

a A 10 × 10 grid is sampled over an operational subdomain identified by prior experimentation. Color mesh represents the posterior predicted mean of a Gaussian process trained on the valid measurements. Stacked histograms show sampling density of measurements along each axis. b 2D projected samples from Bayesian exploration after 66 iterations with 4 parameters (K0, K1, DQ4, DQ5). In both plots, shading with dashed line denotes invalid region in subdomain with 50% confidence, calculated from uniform grid sampling.

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