Yihua Zhang
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RLHF

2 articles

Navigating the RLHF Landscape: From Policy Gradients to PPO, GAE, and DPO for LLM Alignment
Post-training · en / zh ·88 equations RLHF
DeepSeek-R1 Dissection: Understanding PPO & GRPO Without Any Prior Reinforcement Learning Knowledge
Post-training · en / zh ·16 equations The GRPO lineage 1 GRPORLHF