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English(EN) Quantitative Sobolev Approximation Bounds for Neural Operators with Empirical Validation on Burgers Equation

新理论量化了神经算子在索伯列夫空间中的近似能力

研究人员开发了一个新的理论框架,用于理解神经算子在索伯列夫空间内的近似能力。该框架建立了模型复杂度和误差之间的明确关系,表明具有 \(\\mathcal{O}(\\varepsilon^{-d/s})\\) 参数的神经算子可以在 \(H^t\) 范数下均匀近似一个连续非线性算子。使用傅里叶神经算子在Burgers方程上的经验验证显示,测试误差低至 \(10^{-7}\),相对误差约为 \(10^{-3}\),性能大致按 \(N^{-\\alpha}\\) 的比例缩放,其中 \(\alpha \approx 1.4\)。研究还发现,在长时程训练中,较大模型存在优化不稳定性。 AI

影响 为理解和扩展神经算子在PDE应用中的作用提供了理论基础。

排序理由 详细介绍神经算子理论框架和经验验证的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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新理论量化了神经算子在索伯列夫空间中的近似能力

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详细介绍神经算子理论框架和经验验证的学术论文。[lever_c_demoted from research: ic=1 ai=1.0]
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  1. arXiv cs.LG TIER_1 English(EN) · Nicole Hao ·

    神经算子的定量Sobolev近似界限及其在Burgers方程上的经验验证

    arXiv:2605.08170v2 Announce Type: replace Abstract: Neural operators have emerged as a powerful tool for learning mappings between infinite-dimensional function spaces. However, their approximation properties in Sobolev norms remain poorly quantified, even though these norms cont…