2 papers
cs.IT2026
Rarity Determines Minimax Rates of Semantic Entropy From Weak Pairwise Judgments With a Known Channel
Xiaoli Yu, Jiamiao Liu
The semantic entropy of a language model is the entropy of the meanings of its sampled answers. The meanings are never observed, and the entropy is estimated from the verdicts of a…
cs.LG2026
A Joint Finite-Sample Certificate for Adaptive Selective Conformal Risk Control
Xiaoli Yu, Jiamiao Liu
Selective predictors answer on confident inputs and abstain elsewhere; deploying one safely needs a single finite-sample certificate that simultaneously upper-bounds the selected r…