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English(EN) Catastrophic Forgetting: What Fine-Tuning Breaks

LLM 中的灾难性遗忘:微调如何侵蚀能力

微调大型语言模型可能导致灾难性遗忘,即模型在针对新目标进行优化时会丢失先前获得的能力。这种现象源于梯度下降,会导致模型的输出分布向微调数据的特征坍塌。研究人员在 InstructGPT 等模型中发现了这个问题,并探索了诸如混合预训练梯度或惩罚重要参数更改等缓解措施,尽管量化遗忘的确切程度仍然具有挑战性,需要针对特定任务进行评估。 AI

影响 微调 LLM 需要仔细评估,以防止通用能力丢失,从而影响模型的部署和可靠性。

排序理由 该条目讨论了一篇关于 LLM 灾难性遗忘的研究论文和实证研究。[lever_c_demoted from research: ic=1 ai=1.0]

在 dev.to — LLM tag 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

LLM 中的灾难性遗忘:微调如何侵蚀能力

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该条目讨论了一篇关于 LLM 灾难性遗忘的研究论文和实证研究。[lever_c_demoted from research: ic=1 ai=1.0]
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  1. dev.to — LLM tag TIER_1 English(EN) · Multigrid ·

    灾难性遗忘:微调会破坏什么

    <p>A fine-tune optimises one objective on one distribution. Everything the model could do that is not in that objective is, from the optimiser’s point of view, unconstrained — and unconstrained things drift.</p> <h2> The mechanism </h2> <p>The term is older than language models. …