Xintong Li

MASS-DPO: Multi-negative Active Sample Selection for Direct Policy Optimization

Importance Sampling for Multi-Negative Multimodal Direct Preference Optimization

AMPS: Adaptive Modality Preference Steering via Functional Entropy

WS-GRPO: Weakly-Supervised Group-Relative Policy Optimization

OCEAN: Offline Chain-of-thought Evaluation and Alignment in Large Language Models

A Survey on Personalized and Pluralistic Preference Alignment in Large Language Models

CoMMIT: Coordinated Instruction Tuning for Multimodal Large Language Models