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Zhi-Yuan Chen

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#artificial intelligence Preprint Sep 2026

DanLing NestedTensor: Composable Multi-Ragged Tensors for Deep Learning

This work presents DanLing NestedTensor, a PyTorch tensor abstraction that makes multi-ragged structure a property of the tensor itself, and lets model code built from its supported operators compose efficient variable-size computation without managing offsets at any call site.

Zhi-Yuan Chen · 0 citations
Open access Sep 2026

Physics-Informed Neural Network for Reconstructing Free-Surface Transient Flow Fields in Long-Distance Water-Conveyance Tunnels from Sparse Observations

Long-distance free-surface water-conveyance tunnels require a spatially continuous representation of transient water depth, yet in practice flow is monitored at only a few sections. This study develops a physics-informed neural network (PINN) that reconstructs the transient water-depth field of unsteady free-surface fl...

Xiu Li, Zhi-Yuan Chen, Dong-Hui Qi et al. · 0 citations

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