2 papers
stat.ME2024
Assessment of Case Influence in the Lasso with a Case-weight Adjusted Solution Path
Zhenbang Jiao, Yoonkyung Lee
We study case influence in the Lasso regression using Cook's distance which measures overall change in the fitted values when one observation is deleted. Unlike in ordinary least s…
stat.ME2023
Debiasing Sample Loadings and Scores in Exponential Family PCA for Sparse Count Data
Ruochen Huang, Yoonkyung Lee
Multivariate count data with many zeros frequently occur in a variety of application areas such as text mining with a document-term matrix and cluster analysis with microbiome abun…