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Yatong Chen

10 accepted papers

2026

ROC-n-reroll: How verifier imperfection affects test-time scaling

ICLR 2026poster

Test-time scaling aims to improve language model performance by leveraging additional compute during inference. Many works have empirically studied techniques such as Best-of-N (BoN) and Rejection Sampling (RS) that make use of a verifier to enable test-time scaling. However, to date there is littl…

Cited by 0SourceScholar
2025

To Give or Not to Give? The Impacts of Strategically Withheld Recourse

AISTATS 2025poster

Individuals often aim to reverse undesired outcomes in interactions with automated systems, like loan denials, by either implementing system-recommended actions (recourse), or manipulating their features. While providing recourse benefits users and enhances system utility, it also provides informati…

Cited by 0SourcecodeScholar
2024

Performative Prediction with Bandit Feedback: Learning through Reparameterization

ICML 2024poster

Performative prediction, as introduced by Perdomo et al., is a framework for studying social prediction in which the data distribution itself changes in response to the deployment of a model. Existing work in this field usually hinges on three assumptions that are easily violated in practice: that t…

2023

Incentivizing Recourse through Auditing in Strategic Classification

IJCAI 2023poster

The increasing automation of high-stakes decisions with direct impact on the lives and well-being of individuals raises a number of important considerations. Prominent among these is strategic behavior by individuals hoping to achieve a more desirable outcome. Two forms of such behavior are commonly…

Cited by 7SourcePDFScholar
2023

Tier Balancing: Towards Dynamic Fairness over Underlying Causal Factors

ICLR 2023poster

The pursuit of long-term fairness involves the interplay between decision-making and the underlying data generating process. In this paper, through causal modeling with a directed acyclic graph (DAG) on the decision-distribution interplay, we investigate the possibility of achieving long-term fairne…

2022

Fairness Transferability Subject to Bounded Distribution Shift

NeurIPS 2022accept

Given an algorithmic predictor that is "fair"' on some source distribution, will it still be fair on an unknown target distribution that differs from the source within some bound? In this paper, we study the transferability of statistical group fairness for machine learning predictors (i.e., classif…