Heng-Zhi He

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20242026

most citedWatermarking Continuous Tabular Data Generation

1 citations · 1 across the 11 of their papers we have counts for

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math.ST2026

Tensor-normal maximum likelihood estimation at the operator-norm sample threshold

Hengzhi He, Guang Cheng

Let $X_{1}, \dots, X_{n}$ be independent Gaussian tensors in $R^{d_{1}} \otimes \dots \otimes R^{d_{k}}$ with a common covariance matrix given by the Kronecker product of $k$ …

math.ST2026

Asymptotically Lossless Exact and Pivotal E-Values

Hengzhi He, Guang Cheng

Consider testing a finite composite null $\cP={P_1,\ldots,P_L}$ against a simple alternative $Q$ using $n$ i.i.d. observations. Let $ℓ_{n}$ denote the supremum of the expected log…

math.ST2026

Sharp proper estimation of fixed-component Gaussian location mixtures in polynomial time

Hengzhi He, Guang Cheng

We consider a mixture of at most $k$ unit-covariance Gaussians in $R^{d}$ whose means belong to a fixed-radius ball, with no separation or minimum-weight condition. Doss, Wu…