Fig. 2: Bayesian active learning of stanene.

a Pristine stanene, top view and front view. b Atomic mean square displacement (MSD) of the on-the-fly training trajectory. The solid black line shows the MSD of the 32 atoms, the color blocks indicate time intervals corresponding to different temperatures, and the red dots represent events when DFT calculations are called as the uncertainty predictions exceed the data acquisition decision threshold and new data are added to the training set.