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Xuyang Hu

3 accepted papers

2026

Diversity-Incentivized Exploration for Versatile Reasoning

ICLR 2026poster

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a crucial paradigm for incentivizing reasoning capabilities in Large Language Models (LLMs). Due to vast state-action spaces and reward sparsity in reasoning tasks, existing methods often struggle with deficient exploration and poo…

Cited by 0SourcecodeScholar
2026

Reasoning over Boundaries: Enhancing Specification Alignment via Test-time Deliberation

ICML 2026poster

Large language models (LLMs) are increasingly applied in diverse real-world applications, each governed by bespoke behavioral and safety specifications (spec) custom-tailored by users or organizations. These specifications, categorized into safety-spec and behavioral-spec, vary across scenarios and …

Cited by 0SourceScholar
2025

Test-Time Preference Optimization: On-the-Fly Alignment via Iterative Textual Feedback

ICML 2025poster

Large language models (LLMs) have presented impressive performance but often lack the flexibility to adapt to human preferences quickly without retraining. Inspired by the recent efforts on test-time scaling, we make the first attempt to propose Test-time Preference Optimization (TPO), a framework t…