Re:Harvard discrimination lawsuit: data show penalization of...
by yorwba on Sunday June 17, 2018 @11:55PM
(#17335929)
> The goal should be equality of opportunity and evaluation rather than equality of outcome.
In general, that will still require taking race into account. https://arxiv.org/abs/1610.02413 "Equality of Opportunity in Supervised Learning" discusses various fairness measures in the context of deciding loan applications based on credit scores. The issue is that you only know whether someone was qualified once they pay the loan back, and credit scores are not a perfect predictor of that, which on top of that is differently imperfect for different races. If you want equal opportunity (defined as "the probability of a qualified application being accepted is equal independent of race"), you need different thresholds to compensate for the different prediction error rates.
In general, that will still require taking race into account. https://arxiv.org/abs/1610.02413 "Equality of Opportunity in Supervised Learning" discusses various fairness measures in the context of deciding loan applications based on credit scores. The issue is that you only know whether someone was qualified once they pay the loan back, and credit scores are not a perfect predictor of that, which on top of that is differently imperfect for different races. If you want equal opportunity (defined as "the probability of a qualified application being accepted is equal independent of race"), you need different thresholds to compensate for the different prediction error rates.