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lemuria-wchen avatar lemuria-wchen commented on July 28, 2024

猜测可能是 1000步骤左右刚好过了 1 个epoch

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lemuria-wchen avatar lemuria-wchen commented on July 28, 2024

我们一共训练了2个epoch

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BrantonLiu avatar BrantonLiu commented on July 28, 2024

噢明白了 感谢~

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ccp123456789 avatar ccp123456789 commented on July 28, 2024

我们一共训练了2个epoch

这个loss趋势合理吗? 第一个epoch的时候阶梯式下降,是不是学习率什么的导致的?

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lemuria-wchen avatar lemuria-wchen commented on July 28, 2024

我们一共训练了2个epoch

这个loss趋势合理吗? 第一个epoch的时候阶梯式下降,是不是学习率什么的导致的?

loss的阶梯式下降特别是在训练初期阶段应该是比较常见的现象。这代表模型正在从随机初始化LORA权重快速学习数据集的特征。对于大多数模型和优化算法(如SGD、Adam等)来说,第一个epoch结束时观察到显著的loss下降是合理的,因为模型参数开始适应训练数据。

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