Show HN: MCGrad – Fix ML Calibration in Subgroups (Open Source from Meta)
https://github.com/facebookincubator/MCGrad
Hi HN,We're the team at Meta open-sourcing MCGrad. We built this because we found that models often look calibrated on global metrics but fail silently on specific data slices (subgroups).This library provides production-ready implementations of "multicalibration" to detect and fix these local biases.Unlike standard calibration (which looks at the average), MCGrad optimizes for calibration...