Author

Lian-Hui You

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#machine learning Preprint Sep 2026

SimplexUQ: An Evaluation Framework and Benchmark for Conformal Uncertainty on Simplex-Valued Predictions

Conformal prediction guarantees marginal coverage, but a single calibration threshold can still spread that coverage unevenly, over-covering easy regions and under-covering hard ones. SimplexUQ is, to our knowledge, the first benchmark and reproducible protocol for measuring this allocation problem on simplex-valued pr...

Lian-Hui You, He Shi, Dong-Wen Ou · 0 citations

#machine learning Preprint Sep 2026

Missingness-Aware Conformal Prediction Under Cross-Hospital Distribution Shift

Clinical measurements are recorded for some patients but not others, at rates that differ across hospitals, and marginal conformal coverage does not ensure coverage within groups defined by missingness. We propose a missingness-aware conformal calibration procedure for mortality prediction under cross-hospital distribu...

Lian-Hui You, Dong-Wen Ou, He Shi et al. · 0 citations