× 100 (6) For the band gap data, Z ref is a set of numerical band gap results in electronvolts (eV) acquired by a domain expert through manual regression line fitting of Tauc plots to Ω, who has not seen the set Z ext computed from Φ. For the stability data, Z ref is a binarized set acquired by a domain expert through manual regression line fitting of Tauc plots to the post-degradation Ω. If no band gap exists after degradation, this implies high degradation has occurred and a value of 1 is assigned, otherwise, a value of 0 is assigned. Similarly, for the stability data, Z ext is a binarized set acquired by thresholding I c at 10000 px • min, as shown in Figure , where I c > 10000 implies high degradation has occurred and a value of 1 is assigned, otherwise, a value of 0 is assigned. Finally, for the composition data, no direct measure of composition was taken in this study, thus, Z ref is inferred by computing x from the regression line fit of the extracted band gap data, as shown in Figure (a), and the error of the fit is propagated to the composition accuracy calculation.