--- title: "灾难性遗忘 (Catastrophic Forgetting)" created: 2026-06-03 updated: 2026-06-03 type: concept tags: [forgetting, continual-learning, LLM, fine-tuning] status: placeholder --- # 灾难性遗忘 (Catastrophic Forgetting) > ⚠️ 占位符页面 — 待完善 灾难性遗忘指神经网络在新任务上训练后,在先前已掌握的任务上性能急剧下降的现象。在 LLM 的持续指令微调中尤为突出。 [[zhang-reconciling-sft-interaction-2026|Zhang et al. (2026)]] 的交互视角为此提供了新解释:SFT 后阶段的过拟合交互可能覆盖或干扰了已有的可靠推理骨架([[preserved-interactions-backbone|保留交互]])。 ## 相关概念 - [[supervised-fine-tuning|SFT]] - [[preserved-interactions-backbone|保留交互作为推理支柱]] - [[sft-denoising-stage|SFT 去噪阶段]]