Figure 25.

Force errors for the general-purpose phosphorus GAP of ref (163). Measuring the error in different types of configurations illustrates two aspects: the different spread of data for randomized and progressively relaxed configurations in random structure search (RSS) (panel a) and larger error for liquid than for crystalline configurations (panel b), associated presumably with a larger structural diversity in the liquid. Adapted from ref (163). Original figure published under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).