We start discussing the SISSO analysis of catalyst activity. For this purpose, we chose the alkane conversion during the (increasing) temperature ramp step of the catalyst test (step 1 in Fig. ), denoted 8 9:;9<# , as target. For this target, we model all measured temperatures within the range 225 -450°C simultaneously by letting the model fitted coefficients adapt not only to the reaction, but also to the temperature, i.e., -0 = -0 (7, !), where ! correspond to the measured temperature. The total number of data points is 311, corresponding to 12 catalysts * 3 reactions * ca. 10 measured temperatures.