3 papers
math.ST2026
Fixed-level calibration of the Cauchy combination test
Hirofumi Ota
The Cauchy combination test (CCT) is widely used because it yields a closed-form combined -value and is known to be asymptotically valid as the nominal level und…
stat.ML2026
CITE: Anytime-Valid Statistical Inference in LLM Self-Consistency
Hirofumi Ota, Naoto Iwase, Yuki Ichihara +2
Large language models often improve reasoning by sampling multiple outputs and aggregating their final answers, but precise and efficient control of error levels remains a challeng…
math.ST2026
Finite-Sample Inference for Sparsely Permuted Linear Regression
Hirofumi Ota, Masaaki Imaizumi
We study a linear observation model with an unknown permutation called \textit{permuted/shuffled linear regression}, where responses and covariates are mismatched and the permutati…