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cs.LG2026
RAE-PPG: Duration-Grounded Retain-and-Extend Pretraining for PPG Foundation Models
Suyeong Lee, Hochang Lee, Seokyong Sheem +1
Signal features derived from photoplethysmography (PPG) require different signal durations to characterize. Existing PPG foundation models treat duration as a pretraining or evalua…
cs.LG2026
Beyond Correctness: Evaluating Semantic Knowledge in Cross-Table Transfer
Seokyong Sheem, Hochang Lee, Suyeong Lee +1
Semantic knowledge is increasingly used to bridge heterogeneous schemas in tabular learning, but how much does that knowledge actually improve prediction? Studies in tabular learni…