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Creators/Authors contains: "Cheng, Wuxinlin"

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  1. ; ; ; ; ; (, IEEE)
    Free, publicly-accessible full text available June 22, 2026
  2. ; ; ; (, ACM)
    SGM-PINN is a graph-based importance sampling framework to improve the training efficacy of Physics-Informed Neural Networks (PINNs) on parameterized problems. By applying a graph decomposition scheme to an undirected Probabilistic Graphical Model (PGM) built from the training dataset, our method generates node clusters encoding conditional dependence between training samples. Biasing sampling towards more important clusters allows smaller mini-batches and training datasets, improving training speed and accuracy. We additionally fuse an efficient robustness metric with residual losses to determine regions requiring additional sampling. Experiments demonstrate the advantages of the proposed framework, achieving 3× faster convergence compared to prior state-of-the-art sampling methods. 
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    Accepted Manuscript Full Text Available