2025
MPPO: Multi Pair-wise Preference Optimization for LLMs with Arbitrary Negative Samples
COLING 2025main
Aligning Large Language Models (LLMs) with human feedback is crucial for their development. Existing preference optimization methods such as DPO and KTO, while improved based on Reinforcement Learning from Human Feedback (RLHF), are inherently derived from PPO, requiring a reference model that adds…