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Cheol Woo Kim

3 accepted papers

2026

Preference Robustness for DPO with Applications to Public Health

AAAI 2026technical

We study an LLM fine-tuning task for designing reward functions for sequential resource allocation problems in public health, guided by human preferences expressed in natural language. This setting presents a challenging testbed for alignment due to complex and ambiguous objectives and limited data

Cited by 0SourcePDFScholar
2025

Navigating the Social Welfare Frontier: Portfolios for Multi-objective Reinforcement Learning

ICML 2025poster

In many real-world applications of Reinforcement Learning (RL), deployed policies have varied impacts on different stakeholders, creating challenges in reaching consensus on how to effectively aggregate their preferences. Generalized $p$-means form a widely used class of social welfare functions for…

Cited by 0SourcePDFScholar
2025

Robust Optimization with Diffusion Models for Green Security

UAI 2025

In green security, defenders must forecast adversarial behavior-such as poaching, illegal logging, and illegal fishing-to plan effective patrols. These behavior are often highly uncertain and complex. Prior work has leveraged game theory to design robust patrol strategies to handle uncertainty, but

Cited by 0SourcePDFScholar