Confusion matrix for blind evaluation of the ELAsTiCC test sample for the FinalBet classifier (“SNGuessParSNIPPrior”). Recurring events, not the classifier target, are consistently classified as such. True classification fractions, normalized to the true class generally vary between 50 and 70%. The applied priors shift probabilities as expected with respect to FollowMe (Fig above): Common SN types, like SNIa, are more consistently correctly classified at the expense of rare transient types like SNIax.