Figure 4
From: Artificial intelligence and thermodynamics help solving arson cases

Back tracing of the initial composition of a 50% weathered sample using the ANN model. (a) the composition of an unweathered sample, (b) the initial composition of a 50% weathered sample estimated by the ANN, and (c) the deviation between the estimated composition and the actual composition. The names of the components can be found in the Supplementary Information. The error bars show the 95% confidence interval. The deviations for the oxygenated components (58, 59, 60) are less than 4% (not shown here).