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English(EN) Gradient-Update Mismatch: Rethinking Conflict-Free Training of Physics-Informed Neural Networks

新的GUM方法解决了物理信息神经网络中的冲突梯度问题

研究人员在训练物理信息神经网络(PINNs)时发现了一个名为梯度更新不匹配(GUM)的问题。当优化器在梯度手术方法试图解决冲突梯度后,仍然在更新方向上引入新的冲突时,就会发生GUM。这种差异可能导致重大错误,在各种优化器中冲突率高达86.3%。为了解决这个问题,研究人员提出了梯度更新对齐(GUA)方法,该方法将优化器的提议更新投影到无冲突锥上,在测试的PINN设置中持续提高性能并减少高达98.2%的错误。 AI

影响 引入了一种提高物理信息神经网络训练稳定性和准确性的方法,有可能在科学领域实现更可靠的模拟和预测。

排序理由 研究论文,详细介绍了一种新颖的神经网络训练方法。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.LG 阅读 →

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新的GUM方法解决了物理信息神经网络中的冲突梯度问题

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研究论文,详细介绍了一种新颖的神经网络训练方法。[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) · Jing Xiao, Xinhai Chen, Qinglin Wang, Menghan Jia, Zhiquan Lai, Dongsheng Li, Jie Liu, Tiejun Li ·

    梯度更新不匹配:重新思考物理信息神经网络的无冲突训练

    arXiv:2609.01558v1 Announce Type: new Abstract: Training Physics-Informed Neural Networks (PINNs) requires jointly optimizing physics residual and initial/boundary condition loss terms, which often induce conflicting gradients. Gradient surgery methods mitigate this issue by cons…