Fig. F.1.

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ROC curves for several models and (left) training on Virgo and testing on Fornax data and (right) vice versa. In both cases, CNN+kNN as well as CNN show the best characteristics, closely followed by RFs. To increase readability, we show a zoom-in here with false positives rates ranging from 0 to 0.14 and true positives rates from 0.4 to 1.
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