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English(EN) Why Clipping Matters in AdaGrad? Toward a High-Probability Theory under Generalized Smoothness

AdaGrad 裁剪解释:新理论强调结构重要性

研究人员开发了一个理论框架来解释为什么裁剪对于 AdaGrad 优化算法至关重要,尤其是在广义平滑和重尾噪声条件下。他们的分析表明,如果没有裁剪,AdaGrad 会因罕见的噪声冲击而产生方向失真,阻碍进展。该研究证明,裁剪有效地解决了这个问题,为原始 AdaGrad 更新提供了高概率保证,并证明了其对自适应几何的结构重要性,而不仅仅是鲁棒性措施。 AI

影响 为机器学习模型训练中使用的优化技术提供了理论基础。

排序理由 该集群包含一篇详细介绍优化算法理论分析的研究论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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AdaGrad 裁剪解释:新理论强调结构重要性

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该集群包含一篇详细介绍优化算法理论分析的研究论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Alokendu Mazumder, Ayaan Mohd, Harshit Rawat, Arnab Roy, Mayank Baranwal, Punit Rathore ·

    AdaGrad 中的梯度裁剪为何重要?面向广义平滑下的高概率理论

    arXiv:2609.30276v1 Announce Type: new Abstract: We analyze the original same-step coordinate-wise AdaGrad under generalized smoothness and heavy-tailed noise with bounded variance. In this setting, local curvature may grow sub-quadratically with the gradient norm, and stochastic …