3 papers
stat.ME2026
Sparse Longitudinal Functional Principal Component Analysis for Episodic Ambulatory Behavioral Assessments
Nidhi Pai, Yu Fang, Srijan Sen +2
Accurately monitoring mental fatigue is critical for improving workplace safety and productivity. A recent study examined unobtrusively collected smartphone typing speed as a poten…
stat.ME2026
PCA score regression: the art of losing power
Yu Lu, Nidhi Pai, Erjia Cui +1
The regression of principal component scores (RPCS) on covariates is a widely used analytic approach to detect and test for associations between functional measurements and study p…
stat.AP2026
Quantifying Time-Varying Physical Activity Intervention Effects via Functional Regression
Nidhi Pai, Yu Lu, Kristin A. Linn +1
Physical activity (PA) intervention studies often collect repeated intensity measurements over long observation periods. Quantifying the variation in intervention effects over the…