Zobrazeno 1 - 10
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pro vyhledávání: '"Zhang, XianYang"'
Testing for mediation effect poses a challenge since the null hypothesis (i.e., the absence of mediation effects) is composite, making most existing mediation tests quite conservative and often underpowered. In this work, we propose a subsampling-bas
Externí odkaz:
http://arxiv.org/abs/2411.10648
Watermarking is a technique that involves embedding nearly unnoticeable statistical signals within generated content to help trace its source. This work focuses on a scenario where an untrusted third-party user sends prompts to a trusted language mod
Externí odkaz:
http://arxiv.org/abs/2410.20670
Autor:
Zhang, Xianyang, Zhou, Huijuan
Kolmogorov-Arnold Network (KAN) is a network structure recently proposed by Liu et al. (2024) that offers improved interpretability and a more parsimonious design in many science-oriented tasks compared to multi-layer perceptrons. This work provides
Externí odkaz:
http://arxiv.org/abs/2410.08026
Autor:
Li, Xingchi, Zhang, Xianyang
Change point analysis is concerned with detecting and locating structure breaks in the underlying model of a sequence of observations ordered by time, space or other variables. A widely adopted approach for change point analysis is to minimize an obj
Externí odkaz:
http://arxiv.org/abs/2404.05933
Replicability is the cornerstone of scientific research. We study the replicability of data from high-throughput experiments, where tens of thousands of features are examined simultaneously. Existing replicability analysis methods either ignore the d
Externí odkaz:
http://arxiv.org/abs/2404.05808
Schr\"{o}dinger bridge can be viewed as a continuous-time stochastic control problem where the goal is to find an optimally controlled diffusion process whose terminal distribution coincides with a pre-specified target distribution. We propose to gen
Externí odkaz:
http://arxiv.org/abs/2403.01717
Autor:
Roy, Asmita, Zhang, Xianyang
In genome-wide epigenetic studies, exposures (e.g., Single Nucleotide Polymorphisms) affect outcomes (e.g., gene expression) through intermediate variables such as DNA methylation. Mediation analysis offers a way to study these intermediate variables
Externí odkaz:
http://arxiv.org/abs/2402.13933
Autor:
Li, Guanxun, Zhang, Xianyang
We discover a connection between the Benjamini-Hochberg (BH) procedure and the recently proposed e-BH procedure [Wang and Ramdas, 2022] with a suitably defined set of e-values. This insight extends to a generalized version of the BH procedure and the
Externí odkaz:
http://arxiv.org/abs/2312.02905
Batch effects are pervasive in biomedical studies. One approach to address the batch effects is repeatedly measuring a subset of samples in each batch. These remeasured samples are used to estimate and correct the batch effects. However, rigorous sta
Externí odkaz:
http://arxiv.org/abs/2311.03289
The Bayesian Cram\'er-Rao bound (CRB) provides a lower bound on the mean square error of any Bayesian estimator under mild regularity conditions. It can be used to benchmark the performance of statistical estimators, and provides a principled metric
Externí odkaz:
http://arxiv.org/abs/2309.16076