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比Adam更有效,POET从谱不变原理出发,让LLM训练又稳又快
当前训练大型语言模型的事实标准是直接使用 Adam 优化器对权重矩阵进行更新。尽管这一做法实现简单,但在计算上往往代价高昂,随着模型规模的扩大,其复杂度迅速增长。此外,该方法对超参数极为敏感,需精细调整以保证训练稳定收敛。
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