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Jiawei Gu

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#machine learning Preprint Oct 2026

Shaping the Wind: Nested Potentials for Kinematically Admissible Urban Wind Prediction

Predicting transient urban winds is fundamental to understanding urban microclimates and designing climate-resilient cities. Building-resolving large-eddy simulation produces detailed incompressible urban wind fields at substantial computational cost for each layout. Neural surrogates offer a faster alternative by lear...

Yi-Di Wang, Yun-He Zhang, Jia-Wei Gu et al. · 0 citations
Book Open access Aug 2026

The Hidden Fragility of GNNs: How Graph Structure Amplifies Numerical Errors

This work proposes Aggregation-Aware Representation Learning (AARL) to learn numerically stable and cancellation-resistant representations without sacrificing expressiveness, and formalizes this through the cancellation ratio, proving that it is fundamentally governed by graph topology.

Jiawei Gu, Zi-Yue Qiao · 0 citations
Book Open access Aug 2026

The Hidden Fragility of GNNs: How Graph Structure Amplifies Numerical Errors

This work proposes Aggregation-Aware Representation Learning (AARL) to learn numerically stable and cancellation-resistant representations without sacrificing expressiveness, and formalizes this through the cancellation ratio, proving that it is fundamentally governed by graph topology.

Jiawei Gu, Ziyue Qiao · 0 citations

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