Table 7 Fairness Evaluation Before and After HAMF-Aware Retraining.

From: Hybrid MLOps framework for automated lifecycle management of adaptive phishing detection models

Feature Category

Subgroup

FPR (before)

FPR (after)

\(\Delta _{\textrm{DP}}\) reduction

WHOIS domain age

Age > 12 months

\(0.63 \pm 0.02\)

\(0.38 \pm 0.01\)

0.25

Age \(\le\) 12 months

\(1.03 \pm 0.03\)

\(0.62 \pm 0.02\)

0.41

Web traffic percentile

Top 33rd percentile

\(0.35 \pm 0.01\)

\(0.23 \pm 0.01\)

0.12

34th–66th percentile

\(2.02 \pm 0.04\)

\(1.31 \pm 0.03\)

0.71

Bottom 33rd percentile

\(1.70 \pm 0.03\)

\(1.11 \pm 0.02\)

0.60