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Young-Geun Choi
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A 1H NMR-based metabolomics approach to evaluate the geographical authenticity of herbal medicine and its application in building a model effectively assessing the mixing …
HT Nguyen, DK Lee, YG Choi, JE Min, SJ Yoon, YH Yu, J Lim, J Lee, ...
Journal of pharmaceutical and biomedical analysis 124, 120-128, 2016
452016
Colchicine use in patients with COVID-19: A systematic review and meta-analysis
L Chiu, CH Lo, M Shen, N Chiu, R Aggarwal, J Lee, YG Choi, H Lam, ...
PLoS One 16 (12), e0261358, 2021
412021
The protective association between statins use and adverse outcomes among COVID-19 patients: a systematic review and meta-analysis
R Chow, J Im, N Chiu, L Chiu, R Aggarwal, J Lee, YG Choi, EH Prsic, ...
PLoS One 16 (6), e0253576, 2021
362021
The association between statin and COVID-19 adverse outcomes: national COVID-19 cohort in South Korea
R Chow, J Lee, H Noh, J Lee, HJ Shin, YG Choi
medRxiv, 2021.07. 30.21261329, 2021
112021
High-dimensional Markowitz portfolio optimization problem: empirical comparison of covariance matrix estimators
YG Choi, J Lim, S Choi
Journal of Statistical Computation and Simulation 89 (7), 1278-1300, 2019
112019
Fixed support positive-definite modification of covariance matrix estimators via linear shrinkage
YG Choi, J Lim, A Roy, J Park
Journal of Multivariate Analysis 171, 234-249, 2019
82019
Discrimination between genetically identical peony roots from different regions of origin based on 1H-nuclear magnetic resonance spectroscopy-based …
JA Um, YG Choi, DK Lee, YS Lee, CJ Lim, YA Youn, HD Lee, HJ Cho, ...
Analytical and bioanalytical chemistry 405, 7523-7534, 2013
82013
Generalized estimating equations with stabilized working correlation structure
Y Kwon, YG Choi, T Park, A Ziegler, MC Paik
Computational statistics & data analysis 106, 1-11, 2017
72017
Semi-parametric contextual bandits with graph-laplacian regularization
YG Choi, GS Kim, S Paik, MC Paik
arXiv preprint arXiv:2205.08295, 2022
62022
Estimation and inference on high-dimensional individualized treatment rule in observational data using split-and-pooled de-correlated score
M Liang, YG Choi, Y Ning, MA Smith, YQ Zhao
Journal of Machine Learning Research 23 (262), 1-65, 2022
32022
The association between immunosuppressants use and COVID-19 adverse outcome: National COVID-19 cohort in South Korea
HJ Shin, R Chow, H Noh, J Lee, J Lee, YG Choi
medRxiv, 2021.08. 17.21262183, 2021
32021
An efficient parallel block coordinate descent algorithm for large-scale precision matrix estimation using graphics processing units
YG Choi, S Lee, D Yu
Computational Statistics 37 (1), 419-443, 2022
22022
Simultaneous spatial smoothing and outlier detection using penalized regression, with application to childhood obesity surveillance from electronic health records
YG Choi, LP Hanrahan, D Norton, YQ Zhao
Biometrics 78 (1), 324-336, 2022
22022
Positive-definite modification of a covariance matrix by minimizing the matrix norm with applications to portfolio optimization
S Cho, S Katayama, J Lim, YG Choi
AStA Advances in Statistical Analysis 105 (4), 601-627, 2021
22021
Test for uniformity of exchangeable random Variables on the circle
S Cho, YG Choi, J Lim, WJ Lee, HJ Bai, S Kwon
Journal of the Korean Statistical Society 50, 615-630, 2021
22021
Positive-definite correction of covariance matrix estimators via linear shrinkage
YG Choi
서울대학교 대학원, 2015
22015
A comprehensive landscape of de novo malignancy after double lung transplantation
J Lee, AWJ Yang, LIY Chung, J Yu, Y Lee, HS Kim, HJ Shin, YG Choi, ...
Transplant International 36, 11552, 2023
12023
A GENERAL CLASS FOR QUASI-INDEPENDENCE TESTS FOR LEFT-TRUNCATED RIGHT-CENSORED DATA
YG Choi, WY Tsai, MC Paik
Statistica Sinica 29 (2), 789-808, 2019
12019
Regression with Partially Observed Ranks on a Covariate: Distribution-Guided Scores for Ranks
Y Kim, J Lim, YG Choi, S Choi, DH Park
arXiv preprint arXiv:1701.01097, 2017
12017
Regularized LRT for large scale covariance matrices: One sample problem
YG Choi, CT Ng, J Lim
Journal of Statistical Planning and Inference 180, 108-123, 2017
12017
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Articles 1–20