Figure 4
From: Rapid Bayesian optimisation for synthesis of short polymer fiber materials
The results of a Run 1, starting from random samples for Target 1 (L = 70 μm, D = 1 μm). (a) shows the Best Found Value (BFV) of the combined objective for iterations of the optimisation process. The vertical axis is the dimensionless combined objective, in the range 0 to 1. Lower values are better. The horizontal axis shows iteration number; Samples A–E represent the 5 initial random samples. The value at each iteration is indicated by a circle. (b) \(|L-{L}_{T}|/{L}_{T}\), the magnitude of the deviation in found length \(L\) from the target \({L}_{T}\), as a percentage of the target \({L}_{T}\). (c) \(|D-{D}_{T}|/{D}_{T}\), the magnitude of the deviation in found diameter \(D\) from the target \({D}_{T}\), as a percentage of the target \({D}_{T}\). These two figures show how closely the BFV is satisfying the specified target criteria. The vertical bars correspond to the deviations in length and diameter at point where the BFV improves. (d) The corresponding SPF optical microscope images. The red asterisk (*) and dashed line indicates the optimal settings identified in the iterations performed.
