xi-DPO: Direct Preference Optimization via Ratio Reward Margin

arXiv:2605.10981 · cs.LG, cs.AI · Submitted 2026-05-09 · Read on arXiv

cs.LG, cs.AI

Submitted: 2026-05-09

Updated: 2026-10-24

Terminology

• Hyperparameters — 1× in this paper · explained in 2 episodes
• Reinforcement Learning — 1× in this paper · explained in 4 episodes

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