Common Question Q1: The covariate shift assumption

We thank the reviewers for insightful and constructive comments. We have submitted code and detailed Appdendix . TransCal, it is inadvertently omitted by us while writing. Common Question Q2: Will TransCal have a lower accuracy while achieving a better calibration? TransCal maintains the same accuracy with that before calibration, while achieving a lower ECE (Figure 1(b)).