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Xin-Yu Tian

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#machine learning Preprint Sep 2026

Statistical Gains from Looped Estimation under Parameter Budgets

This work studies looping, which repeatedly composes one update function with shared parameters; each output becomes the next input, and establishes an upper squared Hellinger risk bound for looped sieve maximum likelihood and a minimax lower bound for the jointly tuned untied family.

Xin-Yu Tian, Xiao-Tong Shen · 0 citations

Manifold-Aligned Generative Transport

Many high-dimensional datasets concentrate near a low-dimensional structure embedded in the ambient space. Generative models for such data must control off-support mass while remaining computationally practical. Diffusion models use iterative denoising at inference, whereas standard normalizing flows require invertible...

Xin-Yu Tian, Xiao-Tong Shen · 0 citations

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