Ruonan Li

College of Sciences

Works (3)

Updated: September 12th, 2023 05:01

2023 article

Latent factor model for multivariate functional data

Li, R., & Xiao, L. (2023, September 4). BIOMETRICS, Vol. 9.

By: R. Li n & L. Xiao n 

author keywords: covariance function; fPCA; functional data; model identifiability; penalized splines
TL;DR: For multivariate functional data, a functional latent factor model is proposed, extending the traditional latent factor model for multivariate data and may provide a more parsimonious and interpretable characterization of the otherwise complex dependencies between the functions. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: September 11, 2023

2022 article

Fast Multilevel Functional Principal Component Analysis

Cui, E., Li, R., Crainiceanu, C. M., & Xiao, L. (2022, October 7). JOURNAL OF COMPUTATIONAL AND GRAPHICAL STATISTICS, Vol. 10.

By: E. Cui *, R. Li n, C. Crainiceanu * & L. Xiao n 

author keywords: Functional principal component analysis; Mixed model equations; Multilevel models
TL;DR: This work introduces fast multilevel functional principal component analysis (fast MFPCA), which scales up to high dimensional functional data measured at multiple visits, and achieves comparable estimation accuracy with the originalMFPCA. (via Semantic Scholar)
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Sources: Web Of Science, NC State University Libraries
Added: October 24, 2022

2022 article

Fixed-effects inference and tests of correlation for longitudinal functional data

Li, R., Xiao, L., Smirnova, E., Cui, E., Leroux, A., & Crainiceanu, C. M. (2022, May 1). STATISTICS IN MEDICINE, Vol. 5.

By: R. Li n, L. Xiao n , E. Smirnova *, E. Cui *, A. Leroux * & C. Crainiceanu *

author keywords: accelerometry data; covariance function; hypothesis test; mixed effects model
MeSH headings : Computer Simulation; Exercise; Humans; Longitudinal Studies; Research Design
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Sources: Web Of Science, NC State University Libraries
Added: May 10, 2022

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