Direct Preference Optimization Cuts OCR Degeneration by Up to 88%
A Hugging Face blog shows that applying Direct Preference Optimization (DPO) after supervised fine‑tuning dramatically reduces text‑degeneration in OCR models, achieving an average 59% drop and a best‑case 88% reduction. This demonstrates DPO’s utility beyond chatbot alignment, tackling concrete failure modes in structured document extraction.