<p>Impact of a poison attack on fairness assessment using DT classifier.</p>

The table reports the difference in five-fold performance and fairness metrics between using and not using the improved preprocessing fairness mitigation approach. Bias measures (SPD, DI, EOD, and AAOD) and group metrics (TPR, TNR, FPR, FNR, FDR, FOR, PPV, and NPV) are two categories of fairness evaluation that are presented.