نسخة أولية وصول مفتوح
Efficient Best-of-N policy evaluation for inference-time alignment
Best-of-N (BoN) is a common inference-time alignment method that selects the highest-scoring response among N samples from a reference model. Evaluating BoN policies from logged data is challenging under sample-only access because standard off-policy estimators require density ratios that depend on unavailable response …