2 papers
stat.ML2026
Enhancing Spectral Embedding through Robust and Flexible Knowledge Transfer in Electronic Health Records
Feiqing Huang, Zongqi Xia, Rong Ma +1
We propose a spectral-based, unsupervised representation learning framework to derive low-dimensional embeddings for clinical concepts and patients in rare disease cohorts from ele…
stat.ME2026
Learning Sequential Decisions from Multiple Sources via Group-Robust Markov Decision Processes
Mingyuan Xu, Zongqi Xia, Tianxi Cai +2
We often collect data from multiple sites (e.g., hospitals) that share common structure but also exhibit heterogeneity. This paper aims to learn robust sequential decision-making p…