Junkang Wu

Quantile Advantage Estimation: Stabilizing RLVR for LLM Reasoning

Beyond Magnitude: Leveraging Direction of RLVR Updates for LLM Reasoning

PEA-DPO: Perception-Enhanced Alignment Direct Preference Optimization for MLLMs Alignment

Mitigating Reward Hacking in LLM-based Recommendation: A Preference Optimization Approach

bi-GRPO: Bidirectional Optimization for Jailbreak Backdoor Injection on LLMs

Enhancing Multimodal LLMs Reasoning via Perception Reward Modeling

Bridging Perception and Reasoning: Token Reweighting for RLVR in Multimodal LLMs

DAMA: Data- and Model-aware Alignment of Multi-modal LLMs

RePO: Understanding Preference Learning Through ReLU-Based Optimization

Towards Robust Alignment of Language Models: Distributionally Robustifying Direct Preference Optimization

MM-RLHF: The Next Step Forward in Multimodal LLM Alignment

Larger or Smaller Reward Margins to Select Preferences for LLM Alignment?

$\alpha$-DPO: Adaptive Reward Margin is What Direct Preference Optimization Needs

AlphaDPO: Adaptive Reward Margin for Direct Preference Optimization