Siyi Liu

College of Sciences

Works (3)

Updated: April 5th, 2024 16:28

2024 journal article

Multiply robust estimators in longitudinal studies with missing data under control-based imputation

BIOMETRICS, 80(1).

By: S. Liu n, S. Yang n , Y. Zhang * & G. Liu *

author keywords: longitudinal clinical trial; longitudinal observational study; semiparametric theory; sensitivity analysis
TL;DR: A novel estimator inspired by the efficient influence function is obtained, with multiple robustness in the sense that it achieves n1/2-consistency if any pairs of multiple nuisance functions are correctly specified, or if the nuisance functions converge at a rate not slower than n-1/4 when using flexible modeling approaches. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: March 11, 2024

2023 article

Robust analyzes for longitudinal clinical trials with missing and non-normal continuous outcomes

Liu, S., Zhang, Y., Golm, G. T., Liu, G., & Yang, S. (2023, September 26). STATISTICAL THEORY AND RELATED FIELDS, Vol. 9.

By: S. Liu n, Y. Zhang *, G. Golm*, G. Liu * & S. Yang n 

author keywords: Longitudinal clinical trial; missing data; multiple imputation; robust regression; sensitivity analysis
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: October 10, 2023

2022 article

Sensitivity analyses in longitudinal clinical trials via distributional imputation

Liu, S., Yang, S., Zhang, Y., & Liu, G. (2022, November 6). STATISTICAL METHODS IN MEDICAL RESEARCH, Vol. 11.

By: S. Liu n, S. Yang n , Y. Zhang * & G. Liu *

author keywords: Longitudinal clinical trial; missing data; distributional imputation; multiple imputation; sensitivity analysis
MeSH headings : Models, Statistical; Computer Simulation; Antidepressive Agents / therapeutic use; Monte Carlo Method; Benzenesulfonates
TL;DR: Distributional imputation is proposed in sensitivity analysis, which imputes each missing value by samples from its target imputation model given the observed data, and is fully efficient with theoretical guarantees. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: November 21, 2022

Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.

Certain data included herein are derived from the Web of Science© and InCites© (2025) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.