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Qi Chen

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AI & ML interests

GenAI

Recent Activity

upvoted an article 1 day ago
Navigating the RLHF Landscape: From Policy Gradients to PPO, GAE, and DPO for LLM Alignment
upvoted an article 1 day ago
A Guide to Reinforcement Learning Post-Training for LLMs: PPO, DPO, GRPO, and Beyond
upvoted an article 1 day ago
Deriving the PPO Loss from First Principles
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