arXiv:2401. 14483v4 Announce Type: replace Abstract: In the current practices of machine learning, the evaluation of forecasts has become a cornerstone of scientific progress.
By Rabanus Derr, Robert C. Williamson
The paper introduces rankECE, a new metric for assessing calibration error in predictive models. Unlike the widely used Expected Calibration Error (ECE), rankECE compares predictions with neighboring probability values, offering theoretical guarantees and empirical evidence that it better approximates ECE than traditional binned methods.
By Anirban Chatterjee, Rina Foygel Barber
The paper investigates the feasibility of exact truthfulness in calibration measures for sequential binary prediction. It proves that exact truthfulness cannot coexist with completeness and soundness, even when outcomes are independent. The authors then provide two reductions that transform any base calibration measure into additively or multiplicatively approximately truthful ones, achieving a multiplicative truthfulness guarantee that improves upon previous results.
By Anagha Gokul, Jason Hartline, Lunjia Hu, Jonathan Ullman, Yifan Wu
arXiv:2607. 12928v1 Announce Type: new Abstract: We study the online binary sequential calibration problem.
By Zihan Zhang
The paper argues that traditional weather forecast evaluations, which focus on statistical comparisons between forecasts and observations, do not adequately capture how forecasts influence real-world decisions. It introduces decision calibration, a framework that assesses probabilistic forecast performance from the decision-maker’s perspective. Using this framework, the authors compare a machine learning model to a classical numerical weather prediction model across various weather-dependent decision tasks, finding that forecast-level performance does not reliably predict decision-level outcomes and that model rankings can shift depending on the decision context.
By Kornelius Raeth, Nicole Ludwig
arXiv:2606. 09517v1 Announce Type: new Abstract: As renewable energy integration increases market volatility, probabilistic electricity price forecasting has become essential for effective risk management.
By Jan Niklas Lettner, Hadeer El Ashhab, Benjamin Sch\"afer