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Yueming Lyu

Agency for Science, Technology and Research (A*STAR)

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#machine learning Preprint Sep 2026

Subgroup Rank-1 Lattice for Practical High-dimensional Black-box Integral Approximation

Estimating integrals of black-box, high-dimensional functions, from expectations and kernel mean embeddings to the softmax kernel in self-attention, is a basic subroutine in machine learning. Rank-1 lattice rules suit this setting: they query the integrand only at a fixed point set and need no gradients. When the $n$ p...

Yueming Lyu · 0 citations
Preprint Aug 2026

Unsupervised Adaptation of PDE Foundation Models

This work proposes an unsupervised PDE-based finetuning framework that eliminates the need for ground-truth solutions, and introduces NSLoRA, a Newton-Schulz orthogonalized variant that rebalances adaptation.

Ziye Song, Zhao Wei, Xin Yu et al. · 0 citations
Book Open access Aug 2026

SkillTracer: Structural Failure Attribution and Refinement of Agentic Skills in Long-Horizon Web Tasks

Long-horizon web agents frequently fail without knowing where or why execution broke down. This issue is particularly pronounced in skill-based agentic web systems, where failures arise within composite skills whose internal decision processes are not directly traceable, making precise diagnosis and repair especially d...

Yuyang Li, Yiran Dou, Jiejing Shao et al. · 5 citations

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