2 papers
stat.ME2026
Distinguishable Category Groupings in Complex Surveys: Which Categories Can the Design Tell Apart?
Jiarui Qi, Yinhai Wang
Surveys often estimate the share of cases in each of several categories, such as the causes of an event or the reasons for a visit. Readers then compare the categories, but reliabi…
math.ST2026
Shape without scale: an identifiability dichotomy for a bounded tail observed through a non-additive measurement kernel
Jiarui Qi
A latent severity has a bounded lower tail with density of shape alpha and scale L. It is observed only through a fixed Markov kernel K that is biased and non-additive. The relativ…