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51CTO
29 天
一文读懂 PPO 与 GRPO:LLM 训练的关键算法 精华
大语言模型(LLM)的发展可谓日新月异。大家都知道,LLM 的训练过程很复杂,其中有两个关键阶段:预训练和后训练。今天咱们就来深入聊聊在这一过程中发挥重要作用的近端策略优化(PPO)算法和组相对策略优化(GRPO)算法。这俩算法不仅在学术圈备受关注 ...
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