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GRPO, Dr. GRPO, and DAPO Are Three Operations on One Number: The Group-Standard-Deviation Identity

A new paper shows that three popular methods for training language models are variations of a single approach based on standard deviation adjustment. This finding has implications for how language models are trained and evaluated.

#language-models#research-methods#standard-deviation#Training Methods
Hugging Face Daily Papers4 min read6d ago
GRPO, Dr. GRPO, and DAPO Are Three Operations on One Number: The Group-Standard-Deviation Identity
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