Preprint
Aug 2026
High-Dimensional Assisted Learning for Vertically Distributed Data with Blockwise Missingness
Simulations and an analysis of multimodal Alzheimer's Disease Neuroimaging Initiative data indicate that ALB approximates its centralized benchmark and improves upon complete-case Lasso by incorporating partially observed records.
Yuwen Long, Shu-Yuan Wu, Yin Xia
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