Confusion matrix for Cepheids. As control sample, we used all the variable stars that are classified as ACEP, DCEP, and T2CEP by the OGLE survey in the LMC and SMC that have a cross-match within a radius of 3 arcsec with the Cepheids of the aforementioned types published in Gaia DR2, for a total of 7341 objects. Rows refer to literature results and columns to results of the SOS Cep&RRL pipeline. The corresponding success percentage is shown in the diagonal cells.