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English(EN) A fast direct solver based neural network for solving PDEs

新型神经网络以更高的精度和速度加速偏微分方程求解 · 跟踪 4 个来源

研究人员正在开发先进的神经网络架构来改进偏微分方程 (PDE) 的求解。一种方法是自适应硬-软物理信息神经网络 (HSPINN),它能精确强制执行边界条件,并使用自适应损失加权来平衡不同约束,从而比传统的 PINN 具有更快的收敛速度和更高的精度。另一种方法是时间诱导神经网络 (TINNs),它将网络权重参数化为时间的函数,使空间表示能够演变,并显著提高了误差性能和收敛速度。此外,一种基于快速直接求解器的神经网络利用分层矩阵来学习 PDE 的逆运算和非线性解算子,在与经典求解器和现有神经算子网络的竞争中表现出色。 AI

影响 这些用于求解 PDE 的神经网络架构的进步,可以通过提供更快、更准确的计算工具来加速科学发现和工程模拟。

排序理由 多篇介绍用于求解偏微分方程的新型神经网络架构的研究论文。

在 arXiv cs.LG 阅读 →

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新型神经网络以更高的精度和速度加速偏微分方程求解 · 跟踪 4 个来源

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报道来源 [3]

  1. arXiv cs.LG TIER_1 English(EN) · Jashwanth Reddy Kadaru, Vaishnavi Gujjula ·

    一种基于神经网络的快速直接求解器用于求解偏微分方程

    arXiv:2606.19895v1 Announce Type: cross Abstract: The matrices arising from large scale $N$-body problems can be efficiently represented using hierarchical matrices, whose key idea is that the admissible off-diagonal sub-matrices can be well approximated by low-rank matrices acro…

  2. arXiv cs.LG TIER_1 English(EN) · Vaishnavi Gujjula ·

    一种基于神经网络的快速直接求解器用于求解偏微分方程

    The matrices arising from large scale $N$-body problems can be efficiently represented using hierarchical matrices, whose key idea is that the admissible off-diagonal sub-matrices can be well approximated by low-rank matrices across a hierarchy of matrix partitions. HODLR (Hierar…

  3. arXiv cs.LG TIER_1 English(EN) · Chen-Yang Dai, Che-Chia Chang, Te-Sheng Lin, Ming-Chih Lai, Chieh-Hsin Lai ·

    TINNs:用于求解时变偏微分方程的时间诱导神经网络

    arXiv:2601.20361v2 Announce Type: replace Abstract: Physics-informed neural networks (PINNs) solve time-dependent partial differential equations (PDEs) by learning a mesh-free, differentiable solution that can be evaluated anywhere in space and time. However, standard space-time …