[simiones]

They explain: they tested predictions on pairs of faces of teh same gender, ethnicity and age. The result was 69% instead of 72% apparently.

[klmadfejno]

Hmm, the actual phrasing is:

> The accuracy is expressed as AUC, or a fraction of correct guesses when distinguishing between all possible pairs of faces—one conservative and one liberal.

I've never seen something like this. Maybe this is a normal procedure?

But I would be worried that the number of old black conservative women would be really small. Seems a bit sketchy