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English(EN) Stochastic Nonconvex Bilevel Optimization: Improved Rates Without Rare-Visit Assumption

新的优化方法在无需稀疏访问假设的情况下实现了更快的收敛速度

研究人员开发了一种新的随机简单双层优化方法,该方法在无需“稀疏访问”假设的情况下提高了收敛速度。这种新颖的方法是对动态障碍梯度下降(DBGD)的修改,可在 O(ε−2) 次迭代中实现平稳性。该方法利用 O(ε−4) 的上层和 O(ε−7) 的下层随机梯度,超越了先前无假设的复杂性,并提供了随时可用的参数调度。 AI

影响 这项研究通过改进优化算法,可能导致更有效地训练复杂的机器学习模型。

排序理由 该集群包含一篇在 arXiv 上发表的关于新优化方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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

新的优化方法在无需稀疏访问假设的情况下实现了更快的收敛速度

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该集群包含一篇在 arXiv 上发表的关于新优化方法的论文。[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) · Daniel Cortild, Mathias Staudigl, Juan Peypouquet, Coralia Cartis ·

    随机非凸双层优化:无需稀疏访问假设即可提高收敛率

    arXiv:2609.06580v1 Announce Type: cross Abstract: We investigate stochastic simple bilevel optimization with smooth and possibly nonconvex upper- and lower-level objectives. Existing stochastic extensions of dynamic barrier gradient descent (DBGD) either obtain fast convergence u…