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English(EN) Operator-informed initialization for Fourier features physics-informed neural networks

新的初始化策略解决了物理信息神经网络中的频谱偏差问题

研究人员为傅里叶特征物理信息神经网络(PINNs)开发了一种新的初始化策略,以解决频谱偏差问题。频谱偏差是指在训练过程中,目标函数的某些频率收敛速度较慢的常见问题。通过分析神经切线核(Neural Tangent Kernel)机制下的训练动力学,他们推导出一个方程,表明初始化权重显著影响频率收敛速率。所提出的方法根据要解决的特定偏微分方程(PDE)调整初始权重分布,平衡了不同频率的收敛性,并在不增加训练成本的情况下提高了预测精度。 AI

影响 提高了PINNs的训练效率和准确性,可能支持更复杂的科学模拟。

排序理由 学术论文,详细介绍了改进神经网络训练动力学的一种新颖方法。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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新的初始化策略解决了物理信息神经网络中的频谱偏差问题

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学术论文,详细介绍了改进神经网络训练动力学的一种新颖方法。[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) · Juan Molina, Paris Perdikaris, Mircea Petrache, Mat\'ias Courdurier, Francisco Sahli Costabal ·

    面向傅里叶特征的物理信息神经网络的算子信息初始化

    arXiv:2610.03378v1 Announce Type: new Abstract: Physics-Informed Neural Networks (PINNs) typically exhibit spectral bias, where some frequencies of the target function converge more slowly than others. In this work, we analyze the training dynamics of Fourier Feature PINNs in the…