When a Flatness Proxy Is Not a Function: Robustness Certificates and Training Interventions
A valid curvature upper bound need not justify either a robustness certificate or an intervention on an intrinsic predictor property. We demonstrate this distinction for a last-layer relative-flatness proxy used in both settings. First, empirical-risk stationarity does not eliminate pointwise first-order loss terms: at...
Vicente Opazo, Jose Calatayud-Mateu, Cristóbal Rojas et al.
· 0 citations