Výsledky vyhledávání - "Yichuan Zhao"

Akademický článek

A Bootstrap Method for a Multiple-Imputation Variance Estimator in Survey Sampling

Autor: Lili Yu, Yichuan Zhao

Publikováno v: Stats, Vol 5, Iss 4, Pp 1231-1241 (2022)

Rubin’s variance estimator of the multiple imputation estimator for a domain mean is not asymptotically unbiased. Kim et al. derived the closed-form bias for Rubin’s variance estimator. In addition, they proposed an asymptotically unbiased varian

Externí odkaz: https://doaj.org/article/1257f17441e14f37ae1678b58f933b2e

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Akademický článek

The doubling time analysis for modified infectious disease Richards model with applications to COVID-19 pandemic

Autor: Alexandra Smirnova, Brian Pidgeon, Gerardo Chowell, Yichuan Zhao

Publikováno v: Mathematical Biosciences and Engineering, Vol 19, Iss 3, Pp 3242-3268 (2022)

In the absence of reliable information about transmission mechanisms for emerging infectious diseases, simple phenomenological models could provide a starting point to assess the potential outcomes of unfolding public health emergencies, particularly

Externí odkaz: https://doaj.org/article/6c1adf9e19a84357a037e8528ead2eb9

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Akademický článek

Designing a typhoid environmental surveillance study: A simulation model for optimum sampling site allocation

Autor: Yuke Wang, Christine L. Moe, Shanta Dutta, Ashutosh Wadhwa, Suman Kanungo, Wolfgang Mairinger, Yichuan Zhao, Yi Jiang, Peter FM. Teunis

Publikováno v: Epidemics, Vol 31, Iss , Pp - (2020)

Environmental surveillance can be used for monitoring enteric disease in a population by detecting pathogens, shed by infected people, in sewage. Detection of pathogens depends on many factors: infection rates and shedding in the population, pathogen

Externí odkaz: https://doaj.org/article/46aa751f05154032941729ab234fc192

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Akademický článek

New Advances in Biostatistics

Autor: Yichuan Zhao, Ash Abebe, Lihong Qi, Min Zhang, Xu Zhang

Publikováno v: Journal of Probability and Statistics, Vol 2019 (2019)

Externí odkaz: https://doaj.org/article/8ac0e6f90d93413e8dee19c712a4e58f

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Akademický článek

Adaptive and Sequential Methods for Clinical Trials

Autor: Yichuan Zhao, Zhengjia Chen, Xuelin Huang, Mourad Tighiouart

Publikováno v: Journal of Probability and Statistics, Vol 2013 (2013)

Externí odkaz: https://doaj.org/article/fee56c4f368a4293a0940d509de9aed9

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Akademický článek

Methodology and Application of Adaptive and Sequential Approaches in Contemporary Clinical Trials

Autor: Zhengjia Chen, Yichuan Zhao, Ye Cui, Jeanne Kowalski

Publikováno v: Journal of Probability and Statistics, Vol 2012 (2012)

The clinical trial, a prospective study to evaluate the effect of interventions in humans under prespecified conditions, is a standard and integral part of modern medicine. Many adaptive and sequential approaches have been proposed for use in clinica

Externí odkaz: https://doaj.org/article/c3fade74e991497d9b874f3bf0587c23

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