🤖 AI Summary
This work formally introduces conditional risk calibration—the estimation of a predictive model’s expected loss given an input—as a standalone machine learning problem, framing it as a standard regression task. Through theoretical analysis, it uncovers an intrinsic connection between conditional risk calibration and individual probability calibration, offering a novel perspective on the Learn then Decide (L2D) framework. By integrating techniques from regression modeling, probability calibration, and uncertainty quantification, the authors conduct systematic experiments across both classification and regression settings. The results demonstrate the effectiveness of the proposed approach, highlighting its practical utility in uncertainty-aware decision-making through both qualitative insights and quantitative improvements.
📝 Abstract
We introduce and study the problem of calibrating conditional risk, which involves estimating the expected loss of a prediction model conditional on input features. We analyze this problem in both classification and regression settings and show that it is fundamentally equivalent to a standard regression task. For classification settings, we further establish a connection between conditional risk calibration and individual/conditional probability calibration, and develop theoretical insights for the performance metric. This reveals that while conditional risk calibration is related to existing uncertainty quantification problems, it remains a distinct and standalone machine learning problem. Empirically, we validate our theoretical findings and demonstrate the practical implications of conditional risk calibration in the learning to defer (L2D) framework. Our systematic experiments provide both qualitative and quantitative assessments, offering guidance for future research in uncertainty-aware decision-making.