activity
20242026
collaborators

6 papers

stat.ML2026

Toward Simultaneously Optimal Regret in U-Calibration

Rafael Frongillo, Haipeng Luo, Nishant A. Mehta +1

U-calibration studies online forecasting algorithms whose predictions can be consumed by any unknown downstream agent, guaranteeing sublinear regret simultaneously for all proper l…

cs.LG2026

Calibeating Made Simple

Yurong Chen, Zhiyi Huang, Michael I. Jordan +1

We study calibeating, the problem of post-processing external forecasts online to minimize cumulative losses and match an informativeness-based benchmark. Unlike prior work, which…

cs.LG2025

Efficient Swap Multicalibration of Elicitable Properties

Lunjia Hu, Haipeng Luo, Spandan Senapati +1

Multicalibration [HJKRR18] is an algorithmic fairness perspective that demands that the predictions of a predictor are correct conditional on themselves and membership in a collect…

cs.LG2025

Improved Bounds for Swap Multicalibration and Swap Omniprediction

Haipeng Luo, Spandan Senapati, Vatsal Sharan

In this paper, we consider the related problems of multicalibration -- a multigroup fairness notion and omniprediction -- a simultaneous loss minimization paradigm, both in the dis…

cs.LG2025

Simultaneous Swap Regret Minimization via KL-Calibration

Haipeng Luo, Spandan Senapati, Vatsal Sharan

Calibration is a fundamental concept that aims at ensuring the reliability of probabilistic predictions by aligning them with real-world outcomes. There is a surge of studies on ne…

stat.ML2024

Optimal Multiclass U-Calibration Error and Beyond

Haipeng Luo, Spandan Senapati, Vatsal Sharan

We consider the problem of online multiclass U-calibration, where a forecaster aims to make sequential distributional predictions over classes with low U-calibration error, tha…